Document:

Exhibit 4.1

 

Execution Version

 

Forbearance
Agreement and

First
Amendment to Credit Agreement
and Guaranty

 

This
Forbearance Agreement and First Amendment to Credit Agreement and Guaranty (herein, this “Agreement”) is entered
into as of August 27, 2019, by and among Icagen-T, Inc., a Delaware corporation (the “Borrower”), Icagen, Inc.,
a Delaware corporation (“Parent”), the Subsidiary Guarantors party thereto (together with the Parent, the “Guarantors”,
and the Guarantors together with the Borrower, collectively, the “Loan Parties”), each financial institution
from time to time party hereto as lender (each, a “Lender” and collectively, the “Lenders”),
and Perceptive Credit Holdings II, LP, as administrative agent for the Lenders (in such capacity, and together with its successors
and assigns, the “Agent”).

 

R
e c i t a l s:

 

A. The
Lenders have extended credit to the Borrower on the terms and conditions set forth in that certain Credit Agreement and Guaranty,
dated as of August 31, 2018 (the “Existing Credit Agreement”; the Existing Credit Agreement as amended by this
Agreement, the “Credit Agreement”).

 

B. The
Loan Parties are not in compliance with the financial covenant set forth in Section 10.01 of the Existing Credit Agreement and
the affirmative covenants set forth in Sections 8.01(a) and (d) of the Existing Credit Agreement, resulting in Events of Default
under Sections 11.01(d) and (e), respectively, of the Existing Credit Agreement (the “Existing Defaults”).

 

C. The
Lenders are not willing to waive the Existing Defaults, but during and only during the period (the “Standstill Period”)
beginning on the date of this Agreement and ending on the date of the Standstill Termination (as defined below), the Lenders are
willing to temporarily forbear from exercising certain rights and remedies available solely by reason of the Existing Defaults
on the terms and conditions set forth in this Agreement and the Credit Agreement.

 

D. The
parties hereto agree to amend the Existing Credit Agreement pursuant to the terms of this Agreement.

 

Now,
Therefore, for good and valuable consideration, the receipt and sufficiency of which
is hereby acknowledged, the parties hereto agree as follows:

 

1. Incorporation
of Recitals; Defined Terms. The parties hereto acknowledge that the Recitals set forth above are true and correct in all material
respects. The defined terms in the Recitals set forth above are hereby incorporated into this Agreement by reference. All other
capitalized terms used herein without definition shall have the same meanings herein as such terms have in the Credit Agreement.

 

     

     

    

 

2. Acknowledgment
of Defaults. The Existing Defaults constitute Events of Default under the Credit Agreement. The Loan Parties acknowledge
that, because of the Existing Defaults, the Agent and the Lenders are permitted and entitled (i) under Section 11.02 of the
Credit Agreement and under the other Loan Documents to accelerate the Obligations, to enforce Liens granted under the
Security Documents, and to exercise any other rights or remedies that may be available under the Loan Documents or under
applicable law and (ii) to charge the Default Rate under Section 3.02(b) of the Credit Agreement. The Loan Parties represent
to the Agent and the Lenders that there are no Defaults or Events of Default other than the Existing Defaults.

 

3. Forbearance.
Unless and until a Standstill Termination occurs, the Agent and the Lenders party hereto will not accelerate the Obligations or
enforce any of the Liens granted under the Security Documents or exercise any other rights or remedies available solely by reason
of the Existing Defaults.

 

4. Principal
Payments. The Borrower shall pay all principal on the Closing Date Term Loan when due, including, without limitation, the Borrower
shall continue to make all scheduled payments of principal on the Term Loans as and when due under the Credit Agreement.

 

5. Interest
and Fee Payments. The Borrower shall pay all interest, fees, and other Obligations as and when due under the Credit Agreement.

 

6. Standstill
Termination. As used in this Agreement, “Standstill Termination” shall mean the earlier of December 31,
2019 or the occurrence of any one or more of the following events: (a) any Default or Event of Default under the Credit Agreement,
in each case other than the Existing Defaults; (b) any failure by any Loan Party for any reason to comply with any term, condition,
or provision contained in this Agreement; (c) any representation made by any Loan Party in this Agreement or pursuant to it proves
to be incorrect or misleading in any material respect when made (other than to the extent such representation is incorrect as a
result of the Existing Defaults); or (d) any Material Adverse Effect shall occur as determined in good faith by the Agent. The
occurrence of any Standstill Termination shall be deemed an Event of Default under the Credit Agreement. Upon the occurrence of
a Standstill Termination, the Standstill Period shall automatically terminate and the Agent and the Lenders shall then be permitted
and entitled under Section 11.02 of the Credit Agreement and the other Loan Documents, among other things, to accelerate the Obligations
and to exercise any other rights and remedies that may be available under the Loan Documents or applicable law.

 

7. First
Amendment to Existing Credit Agreement. Upon satisfaction of the conditions set forth in Section 13 hereof, the Loan Parties,
the Agent and the Lenders hereby agree that the Existing Credit Agreement is hereby amended by incorporating the changes shown
on the marked copy of the Existing Credit Agreement attached hereto as Annex A. Deletions of text in the Existing Credit Agreement
as amended hereby are indicated by struck-through red text, and insertions of text as amended hereby are indicated by underlined
blue text. Attached hereto as Annex B is a clean copy of the Credit Agreement conformed through the First Amendment. Schedule 1
to the Existing Credit Agreement is hereby amended and replaced in its entirety with Schedule 1 attached hereto.

 

    -2-

     

    

 

8. No
Waiver and Reservation of Rights. The Loan Parties acknowledge that the Lenders are not waiving the Existing Defaults but,
are simply agreeing to forbear from exercising their rights with respect to the Existing Defaults to the extent expressly set forth
in this Agreement. Without limiting the generality of the foregoing, the Loan Parties acknowledge and agree that immediately upon
expiration of the Standstill Period, the Agent and the Lenders have all of their rights and remedies with respect to the Existing
Defaults to the same extent, and with the same force and effect, as if the forbearance had not occurred. The Loan Parties will
not assert and hereby forever waive any right to assert that the Agent or the Lenders are obligated in any way to continue beyond
the Standstill Period to forbear from enforcing their rights or remedies or that the Agent and the Lenders are not entitled to
act on the Existing Defaults after the occurrence of a Standstill Termination as if such default had just occurred and the Standstill
Period had never existed. The Loan Parties acknowledge that the Agent and the Lenders have made no representations as to what actions,
if any, the Agent or the Lenders will take after the Standstill Period or upon the occurrence of any Standstill Termination, a
Default or Event of Default, and the Agent and the Lenders must and do hereby specifically reserve any and all rights, remedies,
and claims they have (after giving effect hereto) with respect to the Existing Defaults and each other Default or Event of Default
that may occur.

 

9. Acknowledgement
of Liens and Affirmation of Guarantee. The Loan Parties hereby acknowledge and agree that the Obligations owing to the Agent
and the Lenders arising out of or in any manner relating to the Loan Documents shall continue to be secured by the Liens granted
as security therefor in the Loan Documents, to the extent provided for in the Loan Documents heretofore executed and delivered
by the such Loan Parties; and nothing herein contained shall in any manner affect or impair the priority of the Liens created and
provided for thereby as to the indebtedness, obligations, and liabilities which would be secured thereby prior to giving effect
to this Agreement. The Parent and Subsidiary Guarantors hereby reaffirm the Guaranteed Obligations owing to the Agent and the Lenders
to the extent provided for in the Credit Agreement, and hereby acknowledge and agree that nothing herein contained shall in any
manner affect or impair the Guaranteed Obligations.

 

    -3-

     

    

 

10.
RELEASE.

 

(a) For
Value Received, Including Without Limitation, the Agreements
of the LEnders in This aGreement, Each
LOan PArty, On
Behalf of Itself and Its Successors and Assigns, and Its Current and Former Shareholders,
Members, Parents, Subsidiaries,
Divisions, Affiliates, Directors,
Officers, Employees, Agents,
Attorneys, Advisors, Consultants,
and Other Representatives (Collectively, the
“REleasing PArties”), Hereby
Absolutely, Unconditionally, and Irrevocably Releases
and Forever Discharges the aGent and the LEnders,
and Their Current and Former Shareholders, Members,
Parents, Subsidiaries, Divisions,
Affiliates, Directors, Officers,
Employees, Agents, Attorneys,
Advisors, Consultants, and
Other Representatives (Collectively, the “REleased
PArties”) of and from Any and All Claims (Including,
Without Limitation, All Counterclaims, Crossclaims,
Defenses, Rights of Set-Off
and Recoupment), Actions, Causes of Action, Acts
and Omissions, Controversies, Demands, Suits,
and Other Liabilities (Collectively, the
“CLaims”) of Every Kind or Nature
Whatsoever, Both in Law and in Equity, Known or Unknown,
Which Any REleasing PArty
has or Ever Had Against the REleased PArties Prior to,
Through, and Including This Date, Including,
Without Limitation, CLaims Arising Out of the Existing Financing
Arrangements Between the BOrrower and the LEnders and
Any CLaim of Breach of the Duty of Good Faith and Fair Dealing Based On, Among
Other Things, the REleased PArties’
Exercise of Discretion Under the LOan DOcuments.
THe LOan PArties Hereby
Represent and Warrant That, On Behalf of Themselves and Their Successors, Assigns
and Legal Representatives, They Have Not Sold, Conveyed,
Assigned, Pledged, Hypothecated,
or Otherwise Encumbered All or Any Part of the CLaims Released
in This SEction. THe LOan
PArties Hereby Acknowledge and Agree That, On Behalf
of Themselves and Their Successors, Assigns and Legal Representatives, the
REleased PArties Have at All Times Acted in Good Faith
with Regard to the Consummation and Administration of the LOan DOcuments.
EAch LOan PArty Acknowledges
and Agrees That, as of the Date Hereof, It Does Not
Have Any CLaim Against the REleased PArties,
Each of Which Such LOan PArty,
On Behalf of Itself and Its Successors, Assigns and Legal Representatives,
Hereby Expressly Waives. EAch LOan
PArty Hereby Confirms That the Foregoing Waiver and Release is an Informed Waiver and Release
and is Being Freely Given.

 

(b)
Each Loan Party Further Agrees, On Behalf Of Itself And Its Successors, Assigns, And Legal Representatives, Not To Commence, Institute,
Or Prosecute Any Lawsuit, Action Or Other Proceeding, Whether Judicial, Administrative Or Otherwise, To Collect Or Enforce Any
Claim Released Herein. If Any Loan Party Or Any Of Its Successors, Assigns, Or Legal Representatives Violates The Foregoing Covenant,
The Loan Parties Hereby Agree, On Behalf Of Themselves And Their Successors And Assigns, To Jointly And Severally Pay, In Addition
To Any Damages As Any Released Party May Sustain As A Result Of Such Violation, All Attorneys’ Fees And Costs Incurred By
Any Released Party As A Result Of Such Violation.

  

11.
Entire Agreement; Loan Documents Remain Effective; No Novation; and Modifications. This Agreement and the Loan Documents
are intended by the Agent and the Lenders as a final expression of their agreement and are intended as a complete and exclusive
statement of the terms and conditions of that agreement. This Agreement supersedes all prior agreements, whether written or oral,
between the parties with respect to its subject matter and constitutes a complete and exclusive statement of the terms of the
agreement between the parties with respect to its subject matter. Except as expressly set forth in this Agreement, the Loan Documents
and all of the obligations of the Loan Parties thereunder, the rights and benefits of the Agent and the Lenders thereunder, and
the Liens created thereby remain in full force and effect. This Agreement is not a novation nor is it to be construed as a release,
waiver or modification of any of the terms, conditions, representations, warranties, covenants, rights or remedies set forth in
the Loan Documents, except as specifically set forth herein. Without limiting the foregoing, the Loan Parties agree to comply
with all of the terms, conditions, and provisions of the Loan Documents except to the extent such compliance is irreconcilably
inconsistent with the express provisions of this Agreement. This Agreement may not be amended, supplemented, or otherwise modified
except by a written agreement entered into in

 

    -4-

     

    

 

accordance with Section 14.04 of
the Credit Agreement. THIS AGREEMENT REPRESENTS THE FINAL
AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS
OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS
BETWEEN THE PARTIES.

 

12. Fees
and Expenses. The Borrower shall also pay all fees and expenses (including attorneys’ fees and expenses) incurred by
the Agent and its counsel outstanding as of the date hereof.

 

13. Conditions
Precedent. The effectiveness of this Agreement is subject to the satisfaction of the following conditions precedent:

 

13.1. The
Agent and the Lenders shall have received executed counterparts of this Agreement duly executed and delivered by each Loan Party.

 

13.2. The
Parent shall have issued to the Agent 21 additional units of Series C Preferred Stock, together with the accompanying Series C
Warrants.

 

13.3 The
Parent shall have received $500,000 in disbursements under the Subordinated Note.

 

13.4 The
Agent, the Lenders and the Obligors shall have entered into a forbearance agreement and amendment to the Parent Credit Agreement
and the Agent and the Lenders shall have received an executed copy thereof, duly executed and delivered by each Loan Party.

 

14. Miscellaneous.
By its acceptance hereof, each Loan Party hereby represents that it has the necessary power and authority to execute, deliver,
and perform the undertakings contained herein, and that this Agreement constitutes the valid and binding obligation of such Loan
Party enforceable against it in accordance with its terms. Any provision of this Agreement held invalid, illegal, or unenforceable
in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such invalidity, illegality, or unenforceability
without affecting the validity, legality, and enforceability of the remaining provision hereof; and the invalidity of a particular
provision in a particular jurisdiction shall not invalidate such provision in any other jurisdiction. The parties hereto hereby
acknowledge and agree that this Agreement shall constitute a Loan Document for all purposes of the Credit Agreement and the other
Loan Documents. Unless otherwise expressly stated herein, the provisions of this Agreement shall survive the termination of the
Standstill Period. This Agreement may be executed in counterparts and by different parties on separate counterpart signature pages,
each of which constitutes an original and all of which taken together constitute one and the same instrument. Delivery of a counterpart
hereof by facsimile transmission or by e-mail transmission of an Adobe portable document format file (also known as a “PDF”
file) shall be effective as delivery of a manually executed counterpart hereof. The provisions contained in Sections 14.09 (Governing
Law), 14.10 (Jurisdiction; Service of Process and Venue) and 14.11 (Waiver of Jury Trial) of the Credit Agreement are incorporated
herein by reference, mutatis mutandis.

 

[Signature
Pages to Follow]

 

    -5-

     

    

 

This Agreement is entered into as of the date and year
first above written.

 

	 	ICAGEN-T, INC., as Borrower
	 	 	 
	 	By:	/s/ Richard Cunningham 
	 	Name: 	Richard Cunningham
	 	Title:	President & CEO
	 	 	 
	 	ICAGEN, INC., as Parent
	 	 	 
	 	By:	/s/ Richard Cunningham
	 	Name: 	Richard Cunningham
	 	Title:	President & CEO
	 	 	 
	 	ICAGEN CORP., as a Guarantor
	 	 	 
	 	By:	/s/ Richard Cunningham
	 	Name: 	Richard Cunningham 
	 	Title:	President & CEO
	 	 	 
	 	CALDERA DISCOVERY, INC., as a Guarantor
	 	 	 
	 	By:	/s/ Richard Cunningham
	 	Name: 	Richard Cunningham
	 	Title:	President & CEO
	 	 	 
	 	XPRO SCIENCES, INC., as a Guarantor
	 	 	 
	 	By:	/s/ Richard Cunningham
	 	Name: 	Richard Cunningham
	 	Title:	President & CEO

 

[Signature Page to Forbearance Agreement and First Amendment to Credit Agreement and Guaranty]

 

     

     

    

 

	 	Accepted and agreed to.
	 	 
	 	PERCEPTIVE CREDIT HOLDINGS, II LP
	 	as Agent and Lender
	 	 
	 	By:	Perceptive Credit Opportunities GP, LLC, its general partner
	 	 	 
	 	By:	/s/ Sandeep Dixit
	 	Name: 	Sandeep Dixit
	 	Title:	Chief Credit Officer
	 	 	 
	 	By:	/s/ Sam Chawla
	 	Name: 	Sam Chawla
	 	Title:	Portfolio Manager

 

[Signature Page to Forbearance Agreement and First Amendment to Credit Agreement and Guaranty]

 

     

     

    

 

Schedule
1

 

Commitments and Warrant
Shares

 

Commitments

 

	Name of Lender	 	Closing Date Commitment	 	 	First Amendment Date Commitment	 
	Perceptive Credit Holdings II, LP	 	$	8,000,000	 	 	$	2,000,000	 

 

Warrant Shares

 

	Name of Lender	 	Warrant Shares
	Perceptive Credit Holdings II, LP	 	723,550 aggregate number of shares issued by Icagen, Inc. under the Credit Agreements for the loan to Icagen, Inc. and Icagen-T, Inc.

 

     

     

    

 

ANNEX A

 

Marked Credit Agreement

 

     

     

    

 

Execution
Version

 

 

 

Credit Agreement And Guaranty1

 

dated as of

 

August 31, 2018

 

among

 

Icagen-t,
Inc.

as the Borrower,

 

Icagen,
Inc.

as Parent,

 

Certain
Subsidiaries of Parent from Time to Time Party hereto,

as the Subsidiary Guarantors,

 

The
Lenders from Time to Time Party hereto,

as the Lenders,

 

and

 

Perceptive
Credit Holdings II, lp

as the Administrative Agent

 

U.S. $8,000,000

 

 

 

 

		1	Conformed
                                         to reflect changes from the Forbearance Agreement and First Amendment to Credit Agreement
                                         and Guaranty dated as of August 27, 2019.

     

     

    

 

Table of Contents

 

	Section	 	Heading	 	Page
    
	 	 	 	 	 
	Section
    1.	 	Definitions	 	1
	Section 1.01.	 	Certain Defined Terms	 	1
	Section 1.02.	 	Accounting Terms and Principles	 	2311
	Section 1.03.	 	Interpretation	 	11
	Section 1.04.	 	Changes to GAAP	 	2512
	 	 	 	 	 
	Section 2.	 	The Commitments and the Closing
    Date Term Loan and First Amendment Term Loan	 	2513
	Section 2.01.	 	Closing Date Term Loan and First Amendment Term Loan	 	2513
	Section 2.02.	 	Notes	 	2614
	Section 2.03.	 	Use of Proceeds	 	2614
	Section 2.04.	 	Proportionate Shares	 	2614
	 	 	 	 	 
	Section 3	 	Payments of Principal
    and Interest	 	2614
	Section 3.01.	 	Repayments and Prepayments Generally; Application	 	2614
	Section 3.02.	 	Interest	 	2715
	Section 3.03.	 	Prepayments; Prepayment Premium	 	2715
	Section 3.04.	 	Closing Fees	 	2917
	 	 	 	 	 
	Section 4.	 	Payments, Etc	 	2931
	Section 4.01.	 	Payments	 	2931
	Section 4.02.	 	Computations	 	3032
	Section 4.03.	 	Set-Off	 	3032
	 	 	 	 	 
	Section 5.	 	Yield Protection,
Etc	 	3032
	Section 5.01.	 	Additional Costs	 	3032
	Section 5.02.	 	Illegality	 	3133
	Section 5.03.	 	Taxes	 	3234
	Section 5.04.	 	Delay in Requests	 	3638
	 	 	 	 	 
	Section 6.	 	Conditions Precedent	 	3638
	Section 6.01.	 	Conditions to the Closing Date	 	3638
	 	 	 	 	 
	Section 7.	 	Representations and Warranties	 	3941
	Section 7.01.	 	Power and Authority	 	3941
	Section 7.02.	 	Authorization; Enforceability	 	4042
	Section 7.03.	 	Governmental and Other Approvals; No Conflicts	 	4042
	Section 7.04.	 	Financial Statements; Material Adverse Change	 	4042
	Section 7.05.	 	Properties	 	4043

 

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	Section 7.06.	No Actions or Proceedings	4345
	Section 7.07.	Compliance with Laws and Agreements	4446
	Section 7.08.	Taxes	4446
	Section 7.09.	Full Disclosure	4446
	Section 7.10.	Investment Company and Margin Stock Regulation	4446
	Section 7.11.	Solvency	4447
	Section 7.12	Equity Holders; Subsidiaries; Equity Investments	4547
	Section 7.13.	Indebtedness and Liens	4547
	Section 7.14.	Material Agreements	4547
	Section 7.15.	Restrictive Agreements	4548
	Section 7.16.	Real Property	4548
	Section 7.17.	Pension Matters	4648
	Section 7.18.	Priority of Obligations; Collateral; Security Interest	4648
	Section 7.19.	Regulatory Approvals	4648
	Section 7.20.	Transactions with Affiliates	4749
	Section 7.21.	OFAC	4719
	Section 7.22.	Anti-Corruption.	4719
	Section 7.23.	Deposit and Disbursement Accounts	4819
	Section 7.24.	Royalty and Other Payments	4819
	 	 	 
	Section
    8.	Affirmative
    Covenants	4819
	 	 	 
	Section 8.01.	Financial Statements and Other Information	4850
	Section 8.02.	Notices of Material Events	5153
	Section 8.03.	Existence; Conduct of Business	5355
	Section 8.04.	Payment of Obligations	5355
	Section 8.05.	Insurance	5356
	Section 8.06.	Books and Records; Inspection Rights	5456
	Section 8.07.	Compliance with Laws and Other Obligations	5557
	Section 8.08.	Maintenance of Properties, Etc.	5557
	Section 8.09.	Maintenance of Regulatory Approvals and Material Intellectual Property	5557
	Section 8.10.	Action Under Environmental Laws	5557
	Section 8.11.	Use of Proceeds	5558
	Section 8.12.	Certain Obligations Respecting Subsidiaries; Further Assurances	 5658
	Section 8.13.	Termination of Non-Permitted Liens	5659
	Section 8.14.	Intellectual Property	5759
	Section 8.15.	ERISA Compliance	5759
	Section 8.16.	Cash Management	5759
	Section 8.17.	Post-Closing Obligations	5720
	Section 8.18.	Milestone.	5720
	Section 8.19.	Icagen-T Lien	5720
	Section 8.20.	Board Observer Rights	5820
	Section 8.21.	Cash Flow	21
	Section 8.22.	Sanofi Agreement	21
	Section 8.23.	Tuscon Real Estate	21

 

    -ii-

     

    

 

	Section 8.24.	Series C Capital Raise	21
	Section 8.25.	Subordinated Notes	21
	 	 	 
	Section 9.	Negative Covenants	5821
	 	 	 
	Section 9.01.	Indebtedness	5821
	Section 9.02.	Liens	6022
	Section 9.03.	Fundamental Changes and Acquisitions	6265
	Section 9.04.	Lines of Business	6365
	Section 9.05.	Investments	6366
	Section 9.06.	Restricted Payments	6467
	Section 9.07.	Payments of Indebtedness	6568
	Section 9.08.	Change in Fiscal Year	6568
	Section 9.09.	Sales of Assets, Etc	6568
	Section 9.10.	Transactions with Affiliates	6669
	Section 9.11.	Restrictive Agreements	6669
	Section 9.12.	Modifications and Terminations of Material Agreements and Organic Documents	6769
	Section 9.13.	Licensing of Intellectual Property	6770
	Section 9.14.	Sales and Leasebacks	6770
	Section 9.15.	Hazardous Material	6770
	Section 9.16.	Accounting Changes	6770
	Section 9.17.	Compliance with ERISA	6770
	 	 	 
	Section 10.	Financial Covenants	6770
	 	 	 
	Section 10.01.	Minimum Liquidity	6770
	Section 10.02.	Minimum Revenue	6870
	 	 	 
	Section 11.	Events of Default	6871
	 	 	 
	Section 11.01.	Events of Default	6871
	Section 11.02.	Remedies	7174
	Section 11.03.	Additional Remedies	7174
	Section 11.04.	Prepayment Premium and Redemption Price	7224
	 	 	 
	Section 12.	Guarantee	7224
	 	 	 
	Section 12.01.	The Guarantee	7224
	Section 12.02.	Obligations Unconditional	7324
	Section 12.03.	Reinstatement	7376
	Section 12.04.	Subrogation	7476
	Section 12.05.	Remedies	7476
	Section 12.06.	Instrument for the Payment of Money	7477
	Section 12.07.	Continuing Guarantee	7477
	Section 12.08.	Rights of Contribution	7477
	Section 12.09.	General Limitation on Guarantee Obligations	7578

 

    -iii-

     

    

 

	Section 13.	Administrative Agent	7578
	 	 	 
	Section 13.01.	Appointment	7578
	Section 13.02.	Rights as a Lender	7678
	Section 13.03.	Exculpatory Provisions	7679
	Section 13.04.	Reliance by Administrative Agent	7779
	Section 13.05.	Delegation of Duties	7780
	Section 13.06.	Resignation of Agent.	7780
	Section 13.07.	Non-Reliance on Administrative Agent and Other Lenders	7881
	Section 13.08.	Administrative Agent May File Proofs of Claim	7881
	Section 13.09.	Collateral and Guaranty Matters; Appointment of Collateral Agent	7982
	 	 	 
	Section 14.	Miscellaneous	8083
	 	 	 
	Section 14.01.	No Waiver	8083
	Section 14.02.	Notices	8083
	Section 14.03.	Expenses, Indemnification, Etc.	8183
	Section 14.04.	Amendments, Etc.	8184
	Section 14.05.	Successors and Assigns	8285
	Section 14.06.	Survival	8487
	Section 14.07.	Captions	8487
	Section 14.08.	Counterparts	8587
	Section 14.09.	Governing Law	8587
	Section 14.10.	Jurisdiction, Service of Process and Venue	8587
	Section 14.11.	Waiver of Jury Trial	8588
	Section 14.12.	Waiver of Immunity	8588
	Section 14.13.	Entire Agreement	8688
	Section 14.14.	Severability	8688
	Section 14.15.	No Fiduciary Relationship	8689
	Section 14.16.	Confidentiality	8689
	Section 14.17.	Right of Setoff.	8789
	Section 14.18.	Judgment Currency	8790
	Section 14.19.	USA PATRIOT Act	8890
	Section 14.20.	Release of Collateral and Guarantees; Non-Disturbance Agreements	8890
	Section 14.21.	Acknowledgement and Consent to Bail-In of EEA Financial Institutions	8891

 

    -iv-

     

    

  

Credit
Agreement and Guaranty

 

Credit Agreement
and Guaranty, dated as of August 31, 2018 (this “Agreement”), among Icagen-T, Inc., a Delaware corporation (the
“Borrower”), Icagen, Inc., a Delaware corporation (“Parent”), certain of Parent’s Subsidiaries
from time to time parties hereto, the lenders from time to time party hereto (each, a “Lender” and collectively,
the “Lenders”), and Perceptive Credit Holdings II, LP, as administrative agent for the Lenders (in such capacity,
the “Administrative Agent”).

 

Witnesseth:

 

Whereas,
the Borrower has requested that the Lenders provide a senior secured term loan facility to the Borrower in an aggregate principal
amount of $8,000,00010,000,000;
and

 

Whereas,
the Lenders are willing, on the terms and subject to the conditions set forth herein, to provide such senior secured term loan
facility.

 

Now,
Therefore, the parties hereto agree as follows:

 

Section
1. Definitions.

 

Section 1.01. Certain Defined Terms. As used
herein, the following terms have the following respective meanings:

 

“Accounting Change Notice” has the
meaning set forth in Section 1.04(a).

 

“Acquisition”
means any transaction, or any series of related transactions, by which any Person directly or indirectly, by means of a take-over
bid, tender offer, amalgamation, merger, purchase of assets, or similar transaction having the same effect as any of the foregoing,
(i) acquires all or substantially all of the assets, business unit or division of any Person, (ii) acquires control of Equity Interests
of a Person representing more than fifty percent (50%) of the ordinary voting power for the election of directors to the board
of directors or other governing body of such Person, or (iii) acquires control of more than fifty percent (50%) of the Equity Interests
in any Person.

 

“Act” has the meaning set forth
in Section 14.19.

 

“Administrative Agent” has the meaning
set forth in the preamble hereto.

 

“Affiliate”
means, with respect to a specified Person, another Person that directly, or indirectly through one or more intermediaries,
Controls or is Controlled by or is under common Control with the Person specified; provided that, with respect to any Lender,
an Affiliate of such Lender shall include, without limitation, all of such Lender’s Related Funds, but shall exclude any
portfolio companies or partners of such Lender or of such Related Funds.

 

     

     

    

 

“Agreement” has the meaning set
forth in the preamble hereto.

 

“Applicable
Margin” means with respect to the Closing Date Term Loan, nine and three-quarters
percent (9.75%), as such percentage may be increased pursuant to Section 3.02(b).

 

“Asset Sale” has the meaning set
forth in Section 9.09.

 

“Assignment
and Assumption” means an assignment and assumption entered into by a Lender and an assignee of such Lender in substantially
the form of Exhibit F.

 

“Bail-In
Action” means the exercise of any Write-Down and Conversion Powers by the applicable EEA Resolution Authority in respect
of any liability of an EEA Financial Institution.

 

“Bail-In
Legislation” means, with respect to any EEA Member Country implementing Article 55 of Directive 2014/59/EU of the European
Parliament and of the Council of the European Union, the implementing law for such EEA Member Country from time to time which is
described in the EU Bail-In Legislation Schedule.

 

“Bailee
Letter” means a bailee letter in form and substance reasonably satisfactory to the Administrative Agent.

 

“Bankruptcy Code” means Title 11
of the United States Code entitled “Bankruptcy”.

 

“Board”
means, with respect to any Person, the board of directors (or equivalent management body) of such Person or any committee thereof
duly authorized to act on behalf of such board or management body.

 

“Borrower” has the meaning set forth
in the preamble hereto.

 

“Borrowing” means the borrowing
of the Term Loan on the Closing Date.

 

“Bridge
Notes” means, collectively, those certain 10% Subordinated Promissory Notes in the aggregate principal amount of $500,000,
issued by Parent pursuant to those certain Securities Purchase Agreements, dated as of August 13, 2018, by and among Parent and
the investors from time to time party thereto.

 

“Business
Day” means a day (other than a Saturday or Sunday) on which commercial banks are not authorized or required to close
in New York City.

 

“Calculation Date” has the meaning
set forth in Section 10.02.

 

“Capital
Lease Obligations” means, as to any Person, the obligations of such Person to pay rent or other amounts under a lease
of (or other agreement conveying the right to use) real and/or personal property which obligations are required to be classified
and accounted for as a capital lease on a balance sheet of such Person under GAAP and, for purposes of this Agreement, the amount
of such obligations shall be the capitalized amount thereof, determined in accordance 

 

    -2-

     

    

 

with GAAP.

 

“Casualty
Event” means the damage, destruction or condemnation, as the case may be, of property of any Person or any of its Subsidiaries
excluding any such property with a fair market value as of the date thereof of less than $1,000,000 per occurrence.

 

“Casualty Event Reinvestment Notice”
has the meaning set forth in Section 3.03(b).

 

“Change
of Control” means at any time of determination, either (i) the acquisition of ownership, directly or indirectly, beneficially
or of record, by any Person (or group of Persons acting jointly or otherwise in concert) (other than the Management Investors)
of Equity Interests of Parent having more than thirty-five percent (35%) of the aggregate ordinary voting power, determined on
a fully diluted basis; (ii) Parent shall cease to own, directly or indirectly, beneficially and of record, one hundred percent
(100%) of the issued and outstanding Equity Interests of each of its Subsidiaries (except for any such securities in the nature
of directors’ qualifying shares required pursuant to applicable Law), in each case free and clear of all Liens except Liens
created by the Security Documents; (iii) during any period of twelve (12) consecutive calendar months, the occupation of a majority
of the seats (other than vacant seats) on the board of directors of Parent by Persons who were neither (a) nominated by the board
of directors of Parent, nor (b) appointed by directors on the board of directors on the date hereof or so nominated; (iv) the sale
of all or substantially all of the property or business of Parent and its Subsidiaries, taken as a whole; or (v) a Key Person Event
shall have occurred.

 

“Claims”
includes litigations, claims, demands, complaints, grievances, actions, suits, orders, charges, indictments, prosecutions,
information (brought by a public prosecutor without grand jury indictment) or other similar processes, assessments or reassessments.

 

“Closing Date” means August 31,
2018.

 

“Closing
Date Commitment” means the commitment of a Lender to make or otherwise fund a Closing Date Term Loan and “Closing
Date Commitments” means such commitments of all Lenders in the aggregate. The amount of each Lender’s Closing
Date Commitment is set forth on Schedule 1. The aggregate Closing Date Commitments of all Lenders as of the Closing Date is $8,000,000.

 

“Closing
Date Term Loan” means each loan advanced by a Lender on the Closing Date pursuant to Section 2.01(a). For purposes
of clarification, any calculation of the aggregate outstanding principal amount of the Closing Date Term Loan on any date of determination
shall mean the aggregate principal amount of the Closing Date Term Loan made pursuant to Section 2.01(a) that has not yet been
repaid as of such date.

 

“Closing Fee” has the meaning set
forth in Section 3.04.

 

“Code” means the Internal Revenue
Code of 1986, as amended.

 

“Collateral” means any asset or
property of any Person in which a Lien is purported to be 

 

    -3-

     

    

 

granted under any Loan Document (or all such property,
as the context may require).

 

“Collateral
Questionnaire” means the collateral questionnaire in substantially the form set forth in Exhibit I which shall be delivered
pursuant to Section 6.01(k).

 

“Commitment”
means the commitment of a Lender to make or otherwise fund a Term Loan and “Commitments” means
such commitments of all Lenders in the aggregate. The amount of each Lender’s Commitment is set forth on Schedule 1. The
aggregate Commitments of all Lenders as of the Closing Date is $8,000,000.

 

“Commitment”
means, collectively, the Closing Date Commitment and the First Amendment Date Commitment.

 

“Committee” has the meaning set
forth in Section 8.20.

 

“Commodity Account” means a “Commodity
Account” as defined in the NY UCC.

 

“Compliance Certificate” has the
meaning set forth in Section 8.01(d).

 

“Connection
Income Taxes” means Other Connection Taxes that are imposed on or measured by net income (however denominated) or that
are franchise Taxes or branch profits Taxes.

 

“Consolidated
Net Revenue” means revenue of Parent and its Subsidiaries determined on a consolidated basis in accordance with GAAP;
provided, however, that Consolidated Net Revenue shall exclude any upfront fees and one-time milestone payments received
by Parent or any of its Subsidiaries from a collaboration agreement with a pharmaceutical or biotechnology company other than those
upfront fees received by Parent or any of its Subsidiaries in connection with the collaboration agreements contemplated to be entered
into on Schedule 10.02.

 

“Contracts”
means any contract, license, lease, agreement, obligation, promise, undertaking, understanding, arrangement, document, commitment,
entitlement or engagement under which a Person has, or will have, any liability or contingent liability (in each case, whether
written or oral, express or implied and whether in respect of monetary or payment obligations, performance obligations or otherwise).

 

“Control”
means, in respect of a particular Person, the possession, directly or indirectly, of the power to direct or cause the direction
of the management or policies of such Person, whether through the ability to exercise voting power, by contract or otherwise. “Controlling”
and “Controlled” have meanings correlative thereto.

 

“Controlled Account” has the meaning
set forth in Section 8.16(a).

 

“Copyright”
means all copyrights, copyright registrations and applications for copyright registrations, including all renewals and extensions
thereof, all rights to recover for past, present or future infringements thereof and all other rights whatsoever accruing thereunder
or pertaining

 

    -4-

     

    

 

“Exit Fee” has
the meaning set forth in Section 3.04(b).

 

“Fair Share” has the meaning set
forth in Section 12.08.

 

“FATCA”
means Sections 1471 through 1474 of the Code, as of the date of this Agreement (or any amended or successor version that is substantively
comparable and not materially more onerous to comply with), any current or future regulations or official interpretations thereof,
any agreements entered into pursuant to Section 1471(b)(1) of the Code, and any fiscal or regulatory legislation, rules or practices
adopted pursuant to any intergovernmental agreement, treaty or convention among Governmental Authorities and implementing such
Sections of the Code.

 

“FD&C
Act” means the U.S. Food, Drug and Cosmetic Act of 1938 (or any successor thereto), as amended from time to time, and
the rules, regulations, guidelines, guidance, documents and compliance policy guides issued or promulgated thereunder.

 

“FDA” means the U.S. Food and Drug
Administration and any successor entity.

 

“First
Amendment” means the Forbearance Agreement and First Amendment to Credit Agreement and Guaranty, dated as of
August 27, 2019, among the Obligors, the Lenders and the Administrative Agent.

 

“First Amendment Closing
Fee” has the meaning set forth in Section 3.04.

 

“First
Amendment Date Commitment” means the commitment of a Lender to make or otherwise fund a First Amendment Term
Loan and “First Amendment Date Commitments” means such commitments of all Lenders in the aggregate. The amount
of each Lender’s First Amendment Date Commitment is set forth on Schedule 1. The aggregate First Amendment Date Commitments
of all Lenders as of the First Amendment Date is $2,000,000.

 

“First Amendment Date”
means August 27, 2019.

 

“First Amendment Maturity
Date” means June 30, 2020.

 

“First
Amendment Term Loan” means each loan advanced by a Lender on the First Amendment Date. For purposes of clarification,
any calculation of the aggregate outstanding principal amount of the First Amendment Term Loan on any date of determination shall
mean the aggregate principal amount of the First Amendment Term Loan made pursuant to Section 2.01(b) that has not yet been repaid
as of such date.

 

“First Amendment Term Loan
Interest Rate” means 15% per annum.

 

“Foreign
Lender” means a Lender (or, if the Lender is a disregarded entity for U.S. federal income tax purposes, the Person treated
as the owner of the assets of such Lender for U.S. federal income tax purposes) that is not a U.S. Person.

 

“Foreign Subsidiary” means a Subsidiary
of Parent that is not incorporated, formed or

 

    -5-

     

    

 

“Indemnified
Taxes” means (i) Taxes, other than Excluded Taxes, imposed on or with respect to any payment made by or on account of
any Obligation and (ii) to the extent not otherwise described in clause (i), Other Taxes.

 

“Industrial Designs” has the meaning
set forth in the Security Documents.

 

“Insolvency
Proceeding” means (i) any case, action or proceeding before any court or other Governmental Authority relating to bankruptcy,
reorganization, insolvency, liquidation, receivership, dissolution, winding-up or relief of debtors, or (ii) any general assignment
for the benefit of creditors, composition, marshaling of assets for creditors, or other similar arrangement in respect of any Person’s
creditors generally or any substantial portion of such Person’s creditors, in each case undertaken under U.S. Federal, state
or foreign Law, including the Bankruptcy Code.

 

“Intellectual
Property” means all Patents, Trademarks, Copyright, Industrial Designs, Technical Information and other intellectual
property, whether registered or not and whether existing under, U.S. or non-U.S. Law or jurisdiction, including (without limitation)
all of the following: (i) all applications or registrations relating to the foregoing; (ii) all rights and privileges arising under
any applicable Law with respect to the foregoing; (iii) rights to sue for past, present or future infringements of such Intellectual
Property; and (iv) all rights of the same or similar effect or nature in any jurisdiction corresponding to such Intellectual Property
anywhere in the world.

 

“Interest
Period” means (i) as to the Closing Date Term Loan, (a) the period commencing
on (and including) the Closing Date and ending on (and including) the last day of the calendar month in which the Closing Date
occurs, and (b) thereafter, the period beginning on (and including) the first day of each succeeding calendar month and ending
on the earlier of (and including) (x) the last day of such calendar month and (y) the Maturity Date
and (ii) as to the First Amendment Term Loan, (a) the period commencing on (and including) the First Amendment Date and ending
on (and including) the last day of the calendar month in which the First Amendment Date occurs, and (b) thereafter, the period
beginning on (and including) the first day of each succeeding calendar month and ending on the earlier of (and including) (x)
the last day of such calendar month and (y) the First Amendment Maturity Date.

 

“Interest
Rate” means the sum of (i) the Applicable Margin plus (ii) the greater of (x) the Reference Rate and (y) two and one-quarter
percent (2.25%).

 

“Invention”
means any novel, inventive or useful art, apparatus, method, process, machine, manufacture or composition of matter, or any
novel, inventive and useful improvement in any art, method, process, machine, manufacture or composition of matter.

 

“Investment”
means, for any Person: (i) any direct or indirect acquisition or investment by such Person, whether by means of (a) the purchase
or other acquisition of Equity Interests or debt or other securities of another Person, (ii) a loan, advance or capital contribution
to, Guarantee or assumption of debt of, or purchase or other acquisition of any other debt or equity participation or interest
in, another Person, including any partnership or joint venture interest in such other Person, or (iii) the purchase or other acquisition
(in one transaction or a series of transactions) of all or

 

    -6-

     

    

 

 Security Agreement, dated as of the date hereof, made
by Borrower, as trustor, in favor of the Administrative Agent, as beneficiary.

 

“Mortgaged
Premises” means the real property located at 2090 E. Innovation Park Drive, Oro Valley, Pima County, Arizona 85755.

 

“Multiemployer
Plan” means any multiemployer plan, as defined in Section 4001(a)(3) of ERISA, to which any ERISA Affiliate incurs or
otherwise has any obligation or liability, contingent or otherwise.

 

“Net
Cash Proceeds” means, with respect to the sale of the Tucson Real Estate or
any Casualty Event, the amount of cash proceeds received (directly or indirectly) from time to time by or on behalf of any Obligor
after deducting therefrom only (w) reasonable fees, costs and expenses related thereto incurred by such Obligor in connection
therewith, (x) amounts required to be repaid on account of any Permitted Indebtedness or other obligations (other than the Obligations)
required to be repaid as a result of such Casualty Event, (y) amounts required to be reserved in accordance with GAAP for indemnities
and against liabilities associated with the property damaged, destructed or condemned in such Casualty Event and (z) Taxes (including
transfer Taxes or net income Taxes) paid or payable in connection therewith; provided that amounts specified therein in
respect of costs, expenses or repayments shall only be deducted from aggregate cash proceeds to the extent such amounts are (1)
actually paid to a Person that is not an Affiliate of Parent or any of its Subsidiaries and (2) properly attributable to such
Casualty Event or the sale of the Tucson Real Estate, as applicable.

 

“Note”
means a promissory note, in substantially the form of Exhibit A hereto, executed and delivered by the Borrower to any Lender
in accordance with Section 2.02.

 

“NY UCC” means the UCC as in effect
from time to time in New York.

 

“Obligations”
means, with respect to any Obligor, all amounts, obligations, liabilities, covenants and duties of every type and description
owing by such Obligor to any Secured Party (including all Guaranteed Obligations and the Warrant Obligations), arising out of,
under, or in connection with, any Loan Document, whether direct or indirect (regardless of whether acquired by assignment), absolute
or contingent, due or to become due, whether liquidated or not, now existing or hereafter arising and however acquired, and whether
or not evidenced by any instrument or for the payment of money, including, without duplication, (i) if such Obligor is the Borrower,
the Term Loan, (ii) all interest accruing under the Loan Documents (including, but not limited to,
accrued but uncapitalized PIK Interest on the First Amendment Term Loan), whether or not accruing after the filing
of any petition in bankruptcy or after the commencement of any insolvency, reorganization or similar proceeding, and whether or
not a claim for post-filing or post-petition interest is allowed in any such proceeding, and (iii) all other fees (including,
without limitation, the Exit Fee), expenses (including fees, charges and disbursement of counsel), interest, commissions,
charges, costs, disbursements, indemnities and reimbursement of amounts paid and other sums, in each case, chargeable to such
Obligor under any Loan Document.

 

“Obligor Intellectual Property” means,
at any time of determination, Intellectual Property

 

    -7-

     

    

 

“Permitted Liens” means any Liens
permitted under Section 9.02.

 

“Permitted
Priority Liens” means Liens permitted under any of the clauses (b), (c), (d), (e), (f) or (i) of Section 9.02.

 

“Permitted
Refinancing” means, with respect to any Permitted Indebtedness, any extension, renewal, replacement or refinancing of
such Indebtedness; provided that such extension, renewal, replacement or refinancing (i) shall not increase the outstanding
principal amount of such Indebtedness except by accrued and unpaid interest and premiums thereon and fees and expenses associated
with such extension, renewal, replacement or refinancing, (ii) contains terms relating to outstanding principal amount, amortization,
maturity, collateral (if any) and subordination (if any), and other material terms taken as a whole no less favorable in any material
respect to Parent and its Subsidiaries or the Secured Parties than the terms of any agreement or instrument governing the Indebtedness
being extended, renewed, replaced or refinanced, (iii) shall have an applicable interest rate or equivalent yield which does not
exceed the interest rate or equivalent yield of the Indebtedness being extended, renewed, replaced or refinanced, (iv) shall not
contain any new requirement to grant any Lien or to give any Guarantee that was not an existing requirement of the Indebtedness
being extended, renewed, replaced or refinanced and (v) after giving effect to such extension, renewal, replacement or refinancing,
no Default or Event of Default shall have occurred (or would reasonably be expected to occur) as a result thereof.

 

“Person”
means any individual, corporation, company, voluntary association, partnership, limited liability company, joint venture, trust,
unincorporated organization or Governmental Authority or other entity of whatever nature.

 

“PIK
Interest” shall mean payment-in-kind of interest in respect of the First Amendment Term Loan by increasing the
outstanding principal amount thereof by an amount equal to such portion of interest, rather than paying such portion of interest
in cash.

 

“Prepayment Date” has the meaning
set forth in Section 3.03(a)(i).

 

“Prepayment
Premium” means with respect to any prepayment of principal of the Closing Date
Term Loan referenced in Section 3.03(a) occurring (i) on or prior to the first anniversary of the Closing Date, an amount equal
to twelve percent (12%) of the aggregate outstanding principal amount of the Closing Date
Term Loan being prepaid, (ii) at any time after the first anniversary of the Closing Date and on or prior to the second anniversary
of the Closing Date, an amount equal to eight percent (8%) of the aggregate outstanding principal amount of the Closing
Date Term Loan being prepaid; and (iii) at any time after the second anniversary of the Closing Date and on or prior
to the third anniversary of the Closing Date, an amount equal to three percent (3%) of the aggregate outstanding principal amount
of the Closing Date Term Loan being prepaid on such Prepayment Date.

 

“Prepayment Price” has the meaning
set forth in Section 3.03(a)(i).

 

“Product” means any future product
developed, manufactured, licensed, marketed, sold or 

 

    -8-

     

    

 

Administrative Agent.

 

“Security
Documents” means, collectively, the Security Agreement, each Short-Form IP Security Agreement, each Real Property Security
Document and each other security document, control agreement or financing statement required or recommended to perfect Liens in
favor of the Secured Parties for purposes of securing the Obligations.

 

“Securities Account” has the meaning
given to it in Section 8-501(a) of the NY UCC.

 

“Series C Holders” means any holder
of the Series C Preferred Stock.

 

“Series C Preferred Stock” means
Parent’s Series C Convertible Redeemable Preferred Stock.

 

“Series
C Preferred Subordination Agreement” means that certain Series C Preferred Subordination Agreement, dated as of the Closing
Date, among the Series C Holders, Parent and the Administrative Agent, pursuant to which the Series C Holders subordinate all rights
to cash payments owed such Series C Holders by Parent due to such Series C Holders’ ownership of Series C Preferred Stock
until the Obligations (other than Warrant Obligations) have been paid in full.

 

“Short-Form
IP Security Agreements” means short-form patent, trademark or copyright (as the case may be) security agreements, substantially
in the forms of Exhibits J, K and L to this Agreement, as applicable, entered into by one (1) or more Obligors in favor of the
Administrative Agent for the benefit of each Secured Party.

 

“S/I Deed of Trust” has the meaning
set forth in the definition of Sanofi Documents.

 

“S/I MSA” has the meaning set forth
in the definition of Sanofi Documents.

 

“S/I
Warranty and Reverter Deed” has the meaning set forth in the definition of Sanofi Documents.

 

“Solvent”
means, with respect to any Person at any time, that (i) the present fair saleable value of the property of such Person is greater
than the total amount of liabilities (including contingent liabilities) of such Person, (ii) the present fair saleable value of
the property of such Person is not less than the amount that will be required to pay the probable liability of such Person on its
debts as they become absolute and matured and (iii) such Person has not incurred and does not intend to, and does not believe that
it will, incur debts or liabilities beyond such Person’s ability to pay such debts and liabilities as they mature.

 

“Subordinated
Notes” means those certain subordinated promissory notes issued pursuant to that certain Securities Purchase
Agreement, dated August 27, 2019, among Parent and the investors party thereto and in an aggregate principal amount not to exceed
$2,500,000.

 

“Subsidiary” means,
with respect to any Person (the “parent”) at any date, any corporation, limited liability company, partnership,
association or other entity the accounts of 

 

    -9-

     

    

 

which would
be consolidated with those of the parent in the parent’s consolidated financial statements if such financial statements
were prepared in accordance with GAAP as of such date, as well as any other corporation, limited liability company, partnership,
association or other entity of which securities or other ownership interests representing more than fifty percent (50%) of the
equity or more than fifty percent (50%) of the ordinary voting power or, in the case of a partnership, more than fifty percent
(50%) of the general partnership interests are, as of such date, directly or indirectly, owned, controlled or held.

 

“Subsidiary
Guarantors” means each Subsidiary of Parent identified under the caption “SUBSIDIARY GUARANTORS” on the signature
pages hereto and each Subsidiary of Parent that becomes, or is required to become, a “Subsidiary Guarantor” after the
date hereof pursuant to Section 8.12(a).

 

“Taxes”
means all present or future taxes, levies, imposts, duties, deductions, withholdings (including backup withholding), assessments,
fees or other charges imposed by any Governmental Authority, including any interest, additions to tax or penalties applicable thereto.

 

“Technical
Information” means all trade secrets and other proprietary or confidential information, public information, non-proprietary
know-how, any information of a scientific, technical, or business nature in any form or medium, standards and specifications, conceptions,
ideas, innovations, discoveries, Invention disclosures, all documented research, developmental, demonstration or engineering work
and all other information, data, plans, specifications, reports, summaries, experimental data, manuals, models, samples, know-how,
technical information, systems, methodologies, computer programs, information technology and any other information.

 

“Term
Loan” means each loan advanced by a Lender pursuant to Section 2.01(a). For purposes of clarification,
any calculation of the aggregate outstanding principal amount of the Term Loan on any date of determination shall mean the aggregate
principal amount of the Term Loan made pursuant to Section 2.01(a) that has not yet been repaid as of such date.

 

“Term
Loan” means, collectively, the Closing Date Term Loan and First Amendment Term Loan.

 

“Title
IV Plan” means an employee benefit plan (as defined in Section 3(3) of ERISA) other than a Multiemployer Plan (i) that
is or within the last six years was maintained or sponsored by any Obligor or any ERISA Affiliate thereof or to which any Obligor
or any ERISA Affiliate thereof within the last six years made, or was obligated to make, contributions, and (ii) that is or was
subject to Section 412 of the Code, Section 302 of ERISA or Title IV of ERISA.

 

“Trademarks”
means all trade names, trademarks and service marks, logos, trademark and service mark registrations, and applications for trademark
and service mark registrations, including all renewals of trademark and service mark registrations, all rights to recover for all
past, present and future infringements thereof and all rights to sue therefor, and all rights corresponding thereto throughout
the world, together, in each case, with the product lines and goodwill of the business connected with the use thereof.

 

    -10-

     

    

 

“Transactions”
means the negotiation, preparation, execution, delivery and performance by each Obligor of this Agreement and the other Loan
Documents to which such Obligor is (or is intended to be) a party, the making of the Term Loan hereunder, and all other transactions
contemplated pursuant to this Agreement and the other Loan Documents.

 

“Tucson Real Estate”
has the meaning set forth in Section 8.23.

 

“UCC”
means, with respect to any applicable jurisdictions, the Uniform Commercial Code as in effect in such jurisdiction, as may
be modified from time to time.

 

“United
States” or “U.S.” means the United States of America, its fifty (50) states and the District of Columbia.

 

“U.S.
Person” means a “United States person” within the meaning of Section 7701(a)(30) of the Code.

 

“U.S. Tax Compliance Certificate”
has the meaning set forth in Section 5.03(f)(ii)(B).

 

“Warrant”
means the warrant to be delivered to the Administrative Agent pursuant to Section 6.01 on the Closing Date, that, among other
things, grants the holder thereof the right to purchase the number of shares of common stock of Parent as indicated on the Warrant
Shares table on Schedule 1, as the Warrant may be amended, replaced or otherwise modified pursuant to the terms thereof.

 

“Warrant
Obligations” means all Obligations of Parent arising out of, under or in connection with the Warrant.

 

“Withholding Agent” means
the Borrower, any Obligor and the Administrative Agent.

 

“Write-Down
and Conversion Powers” means, with respect to any EEA Resolution Authority, the write-down and conversion powers of such
EEA Resolution Authority from time to time under the Bail-In Legislation for the applicable EEA Member Country, which write-down
and conversion powers are described in the EU Bail-In Legislation Schedule.

 

Section
1.02. Accounting Terms and Principles. Unless otherwise specified, all accounting terms used in each Loan Document shall be
interpreted, and all accounting determinations and computations thereunder (including under Section 10 and any definitions used
in such calculations) shall be made, in accordance with GAAP; provided that, for purposes of determining compliance with
any covenant contained in Section 9 or the existence of any Default or Event of Default under Section 11, in determining whether
any lease is required to be accounted for as a capital lease or an operating lease, such determination shall be made based on GAAP
as in effect on the date of this Agreement. Unless otherwise expressly provided, all financial covenants and defined financial
terms shall be computed on a consolidated basis for Parent and its Subsidiaries, in each case, without duplication.

 

Section 1.03.
Interpretation. For all purposes of this Agreement, except as otherwise

 

    -11-

     

    

 

(m) a Schedule
shall refer to those Schedules provided as of the date hereof and as may be further updated in accordance with the terms of this
Agreement (which updates, for the avoidance of doubt, shall be acceptable to the Administrative Agent unless such updates reflect
an item that is otherwise prohibited under this Agreement on the date thereof).

 

Unless otherwise expressly provided
herein, references to organizational documents, agreements (including the Loan Documents) and other contractual instruments shall
be deemed to include all subsequent amendments, restatements, extensions, supplements and other modifications thereto permitted
by the Loan Documents.

 

Section
1.04. Changes to GAAP. Subject to Section 1.02, if, after the date hereof, any change occurs in GAAP or in the application
thereof and such change would cause any amount required to be determined for the purposes of the covenants to be maintained or
calculated pursuant to Section 8, 9 or 10 to be materially different than the amount that would be determined prior to such change,
then:

 

(a) Parent
will provide a detailed notice of such change (an “Accounting Change Notice”) to the Administrative Agent within
thirty (30) days after a Responsible Officer’s learning that such change would so impact the covenants and calculations hereunder;

 

(b) either
Parent or the Administrative Agent may indicate within ninety (90) days following the date of the Accounting Change Notice that
they wish to revise the method of calculating such covenants or amend any such amount, in which case the parties will in good faith
attempt to agree upon a revised method for calculating the financial covenants;

 

(c) until
Parent and the Administrative Agent have reached agreement on such revisions, such covenants or amounts as set forth herein shall
remain in effect and will be determined without giving effect to such change;

 

(d) if
no party elects to revise the method of calculating the covenants or amounts, then the covenants or amounts will not be revised
and will be determined in accordance with GAAP without giving effect to such change; and

 

(e) any
Event of Default arising as a result of such change which is cured by operation of this Section 1.04 shall be deemed to be of no
effect ab initio.

  

Section
2. The Commitments and the Closing
Date Term Loan
and First Amendment Term Loan.

 

Section 2.01. Closing
Date Term Loan and First Amendment Term Loan.

 

(a) TheClosing
Date Term Loan.

 

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(i) Subject
to the terms and conditions of this Agreement and relying on the representations and warranties set forth herein, each Lender,
severally and not jointly, agrees to provide its share of the Closing Date Term Loan to
Borrower on the Closing Date in Dollars in a principal amount equal to such Lender’s Closing
Date Commitment. No Lender shall have an obligation to make a Closing Date
Term Loan in excess of such Lender’s Closing Date Commitment.

 

(ii) Borrower
may make one borrowing under the Closing Date Commitments which shall be on the Closing
Date. Subject to Section 3.03, all amounts owed hereunder with respect to the Closing Date
Term Loan shall be paid in full no later than the Maturity Date. Each Lender’s Closing Date
Commitment shall terminate immediately and without further action on the Closing Date after giving effect to the funding
of such Lender’s Closing Date Commitment on such date.

 

(iii) Upon
satisfaction or waiver of the conditions precedent set forth in this Agreement, the Lenders shall make the proceeds of the Closing
Date Term Loan available to Borrower on the Closing Date.

 

(b)
First Amendment Term Loan.

 

(i) 
Subject to the terms and conditions of this Agreement and relying on the representations and warranties set forth herein, each
Lender, severally and not jointly, agrees to provide its share of the First Amendment Term Loan to Borrower on the First Amendment
Date in Dollars in a principal amount equal to such Lender’s First Amendment Date Commitment. No Lender shall have an obligation
to make a First Amendment Term Loan in excess of such Lender’s First Amendment Date Commitment.

 

(ii) 
Borrower may make one borrowing under the First Amendment Date Commitment which shall be on the First Amendment Date. Subject
to Section 3.03, all amounts owed hereunder with respect to the First Amendment Term Loan shall be paid in full no later than
the First Amendment Maturity Date. Each Lender’s First Amendment Date Commitment shall terminate immediately and without
further action on the First Amendment Date after giving effect to the funding of such Lender’s First Amendment Date Commitment
on such date.

 

(iii) 
Upon satisfaction or waiver of the conditions precedent set forth in Section 13 of the First Amendment, the Lenders shall make
the proceeds of the First Amendment Term Loan available to Borrower on the First Amendment Date.

 

(c)
No amounts paid or prepaid with respect to the Term Loan may be reborrowed. Any term or provision hereof (or of any other Loan
Document) to the contrary notwithstanding, the Term Loan made to the Borrower will be denominated solely in Dollars and will be
repayable solely in Dollars and no other currency.

 

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Section
2.02. Notes. If requested by any Lender, the Term Loan of such Lender shall be evidenced by one or more Notes. If so requested,
the Borrower shall prepare, execute and deliver to the Administrative Agent such promissory note(s) payable to the Lenders (or,
if requested by the Lenders, to the Lenders and their registered permitted assigns) substantially in the form attached hereto as
Exhibit A.

 

Section
2.03. Use of Proceeds. The Borrower shall use the proceeds of the Term Loan solely (a) for general corporate purposes, including,
without limitation, business development and licensing purposes, (b) to refinance the Pay-Off Indebtedness and (c) to pay the fees,
costs and expenses associated with the Transactions. Borrower shall not use the proceeds of the Term Loan for any purpose in violation
of the Sanofi Documents.

 

Section
2.04. Proportionate Shares. The Term Loan shall be made, and all participations purchased, by the Lenders simultaneously and
proportionately to their respective Proportionate Shares, it being understood that no Lender shall be responsible for any default
by any other Lender in such other Lender’s obligation to make a Term Loan hereunder or purchase a participation required
hereby nor shall the Commitment of any Lender be increased or decreased as a result of a default by any other Lender in such Lender’s
obligation to make a Term Loan requested hereunder or purchase a participation required hereby.

 

Section
3 Payments of Principal and Interest.

 

Section
3.01. Repayments and Prepayments Generally; Application. (a) There will be no scheduled amortization payments of principal
on the Term Loan prior to the second (2nd) anniversary of the Closing Date.

 

(b) Commencing
with the Payment Date occurring immediately after the second (2nd) anniversary of the Closing Date and on each Payment Date occurring
thereafter, the Borrower shall make a scheduled amortization payment of principal on the Closing
Date Term Loan in an amount equal to 1.0% of the aggregate principal amount of the Closing
Date Term Loan borrowed on the Closing Date.

 

(c) Any
term or provision hereof to the contrary notwithstanding, (i) on the Maturity Date the
Borrower shall repay the entire remaining outstanding balance of the Closing Date Term
Loan in full in cash and (ii) on the First Amendment Maturity Date the Borrower shall repay the entire
remaining outstanding balance of the First Amendment Term Loan (including accrued and uncapitalized PIK Interest on the First
Amendment Term Loan) in full in cash.

 

(d) The
Borrower agrees that the Term Loan, and any fees or interest accrued or accruing thereon, shall be repaid and prepaid solely in
Dollars pursuant to the terms of this Section 3. Except as otherwise provided in this Agreement, each payment (including each repayment
and prepayment) by the Borrower will be deemed to be made ratably in accordance with the Lenders’ Proportionate Share.

 

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Section
3.02. Interest.

 

(a) Interest
Generally. The outstanding principal amount of the Closing Date Term Loan, as well
as the amount of all other outstanding Obligations (other than the First Amendment Term Loan),
shall accrue interest at the Interest Rate. The outstanding principal amount of the First Amendment
Term Loan shall accrue interest at the First Amendment Term Loan Interest Rate.

 

(b) Default
Interest. Notwithstanding the foregoing, upon the occurrence and during the continuance of any Event of Default, the Applicable
Margin or the First Amendment Term Loan Interest Rate, as applicable, shall increase automatically
by four percent (4%) per annum (the Interest Rate or the First Amendment Term Loan Interest Rate,
as applicable, as increased pursuant to this Section 3.02(b), being the “Default Rate”). If any
Obligation is not paid when due under any applicable Loan Document (after giving effect to any applicable grace period), the amount
thereof shall accrue interest at the Default Rate.

 

(c) Interest
Payment Dates. Accrued interest on the Closing Date Term Loan shall be payable in
cash and in arrears on each Payment Date with respect to the most recently completed Interest Period, and upon the payment or
prepayment of the Closing Date Term Loan (on the principal amount being so paid or prepaid);
provided that interest. PIK Interest on the First Amendment Term Loan shall
be capitalized and added to the outstanding principal amount of the First Amendment Term Loan on each Payment Date with respect
to the most recently completed Interest Period. Interest payable at the Default Rate with
respect to the Closing Date Term Loan and the First Amendment Term Loan shall also be payable from time to time in
cash on demand by the Administrative Agent.

 

(d) Maximum
Rate. Notwithstanding any other provision of this Agreement, in no event will any interest or rates referred to herein exceed
the maximum interest rate permitted by applicable law. If such maximum interest rate would be exceeded by the terms hereof, the
rates of interest payable hereunder will be reduced to the extent necessary so that such rates (together with any fees or other
amounts which are construed by a court of competent jurisdiction to be interest or in the nature of interest) equal the maximum
interest rate permitted by applicable law, and any overpayment of interest received by the Lenders before such rates are so construed
will be applied, forthwith after determination of such overpayment, to pay all then outstanding interest, and thereafter to pay
outstanding principal.

 

Section 3.03. Prepayments; Prepayment
Premium.

 

(a) Optional
Prepayments. (i) Subject to prior written notice pursuant to clause (ii) below, the Borrower shall have the right to optionally
prepay, in whole or in part, the outstanding principal amount of the Term Loan on any Business Day (a “Prepayment Date”)
for an aggregate amount equal to the sum of (x) the aggregate principal amount of the Term Loan being prepaid, (y) the applicable
Prepayment Premium on the principal amount of the Closing Date Term Loan being prepaid
and (z) any accrued but unpaid interest on the principal amount of the Term Loan being prepaid (such aggregate amount, the “Prepayment
Price”).

 

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(ii) A notice of optional prepayment shall be effective only if received by the Administrative Agent not later than 2:00 p.m.
(Eastern time) on a date not less than one (1) Business Day prior to the proposed Prepayment Date. Each notice of optional prepayment
shall specify the Prepayment Price and the principal amount to be prepaid, as well as the Prepayment Date.

 

(b) Mandatory
Prepayments. (i) Subject to the proviso below, and except to the extent such Net Cash
Proceeds have been used to prepay the obligations under the Parent Credit Agreement, upon the occurrence of any Casualty Event,
the Borrower shall make a mandatory prepayment of the Term Loan in an aggregate amount equal to the sum of (x) one hundred percent
(100%) of the Net Cash Proceeds received by the Borrower or any other Obligor as a result of such Casualty Event up
to the principal amount outstanding of the Term Loan, and (y) any accrued but unpaid interest on such principal amount
of the Term Loan being prepaid; provided that so long as no Default or Event of Default has occurred and is continuing
at the time the Borrower or any Obligor shall have received such Net Cash Proceeds, if, within five (5) Business Days following
the occurrence of any such Casualty Event, a Responsible Officer of the Borrower may deliver to the Administrative Agent a notice
(each, a “Casualty Event Reinvestment Notice”) to the effect that the Borrower or applicable Obligor intends
to apply the Net Cash Proceeds from such Casualty Event to acquire, replace or rebuild the property subject to such Casualty Event
or to the cost of purchase or construction of other assets useful in the business of Parent or its Subsidiaries, then such Net
Cash Proceeds of such Casualty Event may be applied for such purpose in lieu of such mandatory prepayment, provided further
that, in the event that Net Cash Proceeds have not been so applied within one hundred eighty (180) days following the occurrence
of such Casualty Event, the Borrower shall make a mandatory prepayment of the Term Loan in an aggregate amount equal to the sum
of (A) one hundred percent (100%) of the unused balance of such Net Cash Proceeds received by the Borrower or any other Obligor
as a result of such Casualty Event up to the principal amount outstanding of the Term Loan,
and (B) any accrued but unpaid interest (including, but not limited to, any accrued but uncapitalized
PIK Interest on the First Amendment Term Loan) on such principal amount of the Term Loan being prepaid, provided,
further, that to the extent that the property subject to the Casualty Event is Collateral, then any such acquired, replaced,
repaired, purchased or constructed property shall be Collateral in which the Administrative Agent, for the benefit of the Lenders,
has been granted a security interest under the Security Documents.

 

(ii)
Upon the disposition and sale of the Tucson Real Estate in accordance with Section 8.23, the Borrower shall make a mandatory prepayment
of the Term Loan in an aggregate amount equal to the lesser of (i) the entire outstanding Obligations as of such date and (ii)
one hundred percent (100%) of the Net Cash Proceeds received by the Borrower in connection with such sale, to be applied pursuant
to Section 3.03(d) below.

 

(c) Prepayment
Premium. Without limiting the foregoing, whenever the Prepayment Premium is in effect and payable pursuant to the terms hereof,
such premium shall be payable on all payments and prepayments of the Closing Date Term
Loan, whether as a result of clause (a) above in this Section 3.03, acceleration or otherwise (but excluding any prepayment pursuant
to clause (b) above).

 

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(d) Application.
Proceeds of any prepayment made pursuant to clauses (a) or (b) above shall be applied in the following order of priority, with
proceeds being applied to a succeeding level of priority only if amounts owing pursuant to the immediately preceding level of
priority have been paid in full in cash:

 

(i)  first,
to the payment of any unpaid costs or expenses referred to in Section 14.03 then due and owing;

 

(ii) second,
to the payment of any accrued and unpaid interest (including, but not limited to, accrued but uncapitalized
PIK Interest on the First Amendment Term Loan) and any fees then due and owing;

 

(iii) third,
to the payment of unpaid principal of the First Amendment Term Loan;

 

(iv)
 fourth, to the payment of the Exit Fee then due and payable;

 

(v) fifth,
to the payment of unpaid principal of the Closing Date Term Loan;

 

(vi) sixth,
to the payment of any Prepayment Premium then due and payable; and

 

(vvii) fifthseventh,
to the Borrower or such other Persons as may lawfully be entitled to or directed by the Borrower to receive the remainder.

 

Section 3.04. Fees.

 

(a)
Closing Fee. On the Closing Date, the Borrower shall pay to the Administrative Agent out of the proceeds of
the Term Loan a non-refundable fee in the amount equal to two percent (2%) of the principal amount of the Term Loan advanced by
the Lenders on such date (the “Closing Fee”). On the First Amendment Date, the
Borrower shall pay to the Administrative Agent out of the proceeds of the First Amendment Term Loan a non-refundable fee in the
amount equal to two percent (2%) of the principal amount of the First Amendment Term Loan advanced by the Lenders on such date
(the “First Amendment Closing Fee”). Payment of the Closing Fee and
the First Amendment Closing Fee shall be in addition to such fees, costs and expenses due and payable pursuant to Section
14.03. Upon receipt of payment from the Borrower, the Administrative Agent will promptly thereafter distribute like funds relating
to any such payment to the Lenders pro rata on the basis of each Lender’s Proportionate Share.

 

(b)
Exit Fee. On the First Amendment Maturity Date or on the earlier repayment of the First Amendment Term Loans in full (provided
that such earlier repayment occurs after December 31, 2019), the Borrower agrees to pay to the Administrative Agent for distribution
to the Lenders a fee equal to five percent (5%) of the aggregate outstanding principal amount of the First Amendment Term Loan
(the “Exit Fee”).

 

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Agreement.

 

(i) Material
Adverse Change. No Material Adverse Change shall have occurred since December 31, 2017.

 

(j) Fees
and Expenses, Etc. Each of the Administrative Agent and each Lender shall have received, for its own account, the fees, costs
and expenses due and payable to it on the Closing Date pursuant to Sections 3.04(a)
and 14.03, including all reasonable closing costs and fees and all unpaid reasonable expenses of the Administrative Agent and the
Lenders incurred in connection with the Transactions (including the Administrative Agent’s and the Lenders’ reasonable
and documented legal fees and expenses).

 

(k) Collateral
Questionnaire. The Administrative Agent shall have received a fully completed Collateral Questionnaire, dated as of the Closing
Date, duly executed and delivered by a Responsible Officer of each Obligor.

 

(l) Warrant.
The Administrative Agent shall have received the executed Warrant, dated as of the Closing Date.

 

(m) Insurance.
The Administrative Agent shall have received (x) certificates and endorsements of insurance evidencing the existence of all insurance
required to be maintained by the Obligors and their respective Subsidiaries pursuant to Section 8.05 and the designation of the
Administrative Agent as the Borrower’s loss payee or additional insured, as applicable and (y) a fully paid title insurance
policy, with endorsements and in an amount acceptable to the Administrative Agent, issued by a nationally recognized title insurer
acceptable to Administrative Agent, insuring the Mortgage to be a valid first and subsisting Lien on the real property described
therein, free and clear (or insured over) of all defects (including, but not limited to, mechanics’ and materialmen’s
Liens) and encumbrances, excepting only Permitted Liens, and providing for such other affirmative assurances as may be reasonably
requested by the Administrative Agent.

 

(n) Pay-Off
Letters. The Administrative Agent shall have received executed Pay-Off Letters terminating and cancelling the Pay-Off Indebtedness
in full, in form and substance reasonably acceptable to it.

 

(o) Due
Diligence. The Administrative Agent and the Lenders shall have received and be satisfied with all due diligence (including
without limitation historical financial statements, projections, technical, operational, legal, intellectual property, commercial
market forecasts, clinical and regulatory assessments, supply chain, securities, labor, Tax, litigation, environmental, reimbursement
and regulatory authority matters) in their sole discretion.

 

(p) Parent
Loan Documents. The Administrative Agent shall have received executed copies of all Parent Loan Documents.

 

(q) Bridge Notes. The
Administrative Agent shall have received executed 

 

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transaction (including the purchase, sale, lease, transfer or exchange of
property or assets of any kind or the rendering of services of any kind) with any Affiliate during the three-year period
prior to the Closing Date.

 

Section
7.21. OFAC. Except as set forth on Schedule 7.21, no Obligor nor any of its Subsidiaries, nor, to the knowledge of the Borrower,
any of their respective directors, officers, or employees nor, to the knowledge of the Borrower, any agents or other Persons acting
on behalf of any of the foregoing (i) is currently the target of any Sanctions, (ii) is located, organized or residing in any Designated
Jurisdiction, (iii) is or has been engaged in any transaction with, or for the benefit of, any Person who is now or was then the
target of Sanctions or who is located, organized or residing in any Designated Jurisdiction or (iv) is or has ever been in violation
in any material respect of or subject to an investigation relating to Sanctions. No Term Loan, nor the proceeds from the Term Loan,
has been or will be used, directly or indirectly, to lend, contribute or provide to, or has been or will be otherwise made available
to fund, any activity or business in any Designated Jurisdiction or to fund any activity or business of any Person, to the Borrower’s
knowledge, located, organized or residing in any Designated Jurisdiction or who is the subject of any Sanctions, or in any other
manner that will result in any violation in any material respect by Parent or any of its Subsidiaries of Sanctions.

 

Section
7.22. Anti-Corruption. No Obligor nor any of its Subsidiaries, nor, to the knowledge of the Borrower, any of their respective
directors, officers or employees nor, to the knowledge of the Borrower, any agents or other Persons acting on behalf of any of
the foregoing, directly or indirectly, has (i) violated or is in violation, in any material respect, of any applicable anti-corruption
Law, or (ii) made, offered to make, promised to make or authorized the payment or giving of, directly or indirectly, any Prohibited
Payment. To the Borrower’s knowledge, no Obligor has been subject to any investigation by any Governmental Authority with
regard to any actual or alleged Prohibited Payment.

 

Section
7.23. Deposit and Disbursement Accounts. Schedule 7.23 contains a list of all banks and other financial institutions at which
any Obligor or any of its Subsidiaries maintains Deposit Accounts, Securities Accounts and Commodity Accounts, and Schedule 7.23
sets forth the name, address and telephone number of each such bank or financial institution, the name in which such account is
held, the type of such account and the complete account number therefor.

 

Section
7.24. Royalty and Other Payments. Except as set forth on Schedule 7.24, no Obligor, nor any of its Subsidiaries, is obligated
to pay any royalty, milestone payment, deferred payment or any other contingent payment.

 

Section
8. Affirmative Covenants.

 

Each Obligor
covenants and agrees with the Lenders that, until the Commitments have expired or been terminated and all Obligations (other than
Warrant Obligations and contingent obligations as to which no claims have been asserted) have been indefeasibly paid in full in
cash; provided, however, that the covenants set forth in Sections 8.21, 8.22 and 8.23
shall terminate upon payment in full of the unpaid principal amount owed under the First Amendment Term Loan and all accrued and
unpaid PIK Interest on the First Amendment Term Loan:

 

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(b) the Obligors
shall deposit promptly, and in any event no later than five (5) Business Days after the date of receipt thereof, all cash, checks,
drafts or other similar items of payment relating to or constituting payments made in respect of any and all accounts and other
rights and interests into a Deposit Account of an Obligor (which Deposit Account shall, on and after the Closing Date (or such
later date as agreed to by the Administrative Agent in its reasonable discretion), be a Controlled Account).

 

Section 8.17. Post-Closing
Obligations. Within the time periods specified on Schedule 8.17 (as each may be extended by the Administrative Agent
in its reasonable discretion), complete such undertakings as are set forth on Schedule 8.17.

 

Section
8.18. Milestone. On or before March 31, 2019, enter into a collaboration agreement with a pharmaceutical or biotechnology company
that results in aggregate upfront fees in excess of $5,000,000.

 

Section
8.19. Icagen-T Lien. Within thirty (30) days after the earlier of (i) the date the S/I MSA no longer prohibits Parent from
pledging Borrower’s Equity Interests to the Administrative Agent and (ii) the date the S/I MSA is terminated, Parent shall
(x) deliver all certificates representing 100% of Borrower’s Equity Interests to the Administrative Agent, accompanied by
undated instruments of transfer duly executed in blank and (y) if Administrative Agent shall so require, enter into a pledge agreement
with respect to such Equity Interests in form and substance reasonably acceptable to the Administrative Agent.

 

Section
8.20. Board Observer Rights. Until the Obligations (other than the Warrant Obligations and contingent indemnification obligations
for which no claim has been made) have been paid in full in cash, Parent shall permit the Administrative Agent on behalf of all
of the Lenders (the “Observer”) to attend and observe (but not vote) at all meetings of Parent’s (or any
Subsidiary’s, as applicable) Board or any committee thereof (each a “Committee”), whether in person, by
telephone or otherwise as requested by the Observer. Parent and such Subsidiaries shall notify the Observer in writing at the same
time as furnished to members of the applicable Board or Committee of (i) the date and time for each general or special meeting
of any such Board or Committee and (ii) the adoption of any resolutions or actions by any such Board or any such Committee by written
consent (describing, in reasonable detail, the nature and substance of such action). Parent and each of its Subsidiaries shall
concurrently deliver to the Observer all notices and any materials delivered to the official members of such Board or Committee
in connection with a meeting or action to be taken by written consent, including a draft of any material resolutions or actions
proposed to be adopted by written consent. The Observer shall be free prior to such meeting or adoption by written consent to contact
members of any applicable Board or Committee and discuss the pending actions to be taken. Notwithstanding the foregoing, the Observer
shall not be entitled to receive materials relating to, or be in attendance for, any discussions relating to topics which (x) are
subject to attorney client privilege, or (y) present a conflict of interest for the Observer. All such discussions and materials
shall be subject to the confidentiality provisions set forth in Section 14.16.

 

Section
8.21. Cash Flow. No later than Wednesday of each week (beginning September 4, 2019), the Obligors shall provide to
the Administrative Agent and the Lenders a 13-week cash

 

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flow
forecast showing projected cash receipts and cash disbursements (including referencing line item sources and uses of cash) of
the Obligors over the immediately succeeding 13-week period.

 

Section
8.22. Sanofi Agreement. On or before January 31, 2020, the Borrower shall have caused the termination of the S/I MSA
and the release of all Liens thereunder (including, without limitation, the S/I Deed of Trust and the S/I Warranty and Reverter
Deed).

 

Section
8.23. Tucson Real Estate. On or before February 28, 2020, the Borrower shall have caused the disposition and sale of
the real property in Tucson, Arizona at which its research and development site is located (the “Tucson Real Estate”),
the proceeds of which shall be greater than or equal to $20,000,000.

 

Section
8.24. Series C Capital Raise. On or before November 30, 2019, the Series C Holders or other investors shall have made
new cash equity contributions to the Parent in an aggregate amount of not less than $2,500,000.

 

Section 8.25 Subordinated
Notes. On or before the First Amendment Date, the Parent shall have issued the initial Subordinated Notes, under which
the Parent shall have received $500,000.

 

Section
9. Negative Covenants.

 

Each Obligor
covenants and agrees with the Lenders that, until the Commitments have expired or been terminated and all Obligations (other than
Warrant Obligations and contingent obligations as to which no claims have been asserted) have been paid in full indefeasibly in
cash:

 

Section
9.01. Indebtedness. Such Obligor will not, and will not permit any of its Subsidiaries to, create, incur, assume or permit
to exist any Indebtedness, whether directly or indirectly, except:

 

 (a) the Obligations;

 

(b) Indebtedness
existing on the on the Closing Date and set forth on Schedule 7.13(a) and Permitted Refinancings thereof;

 

(c) accounts
payable to trade creditors for goods and services and current operating liabilities (not the result of the borrowing of money)
incurred in the ordinary course of such Obligor’s or such Subsidiary’s business in accordance with customary terms
and paid within ninety (90) days of becoming due, unless contested in good faith by appropriate proceedings and reserved for in
accordance with GAAP;

 

(d) Indebtedness
consisting of guarantees resulting from the endorsement of negotiable instruments for collection in the ordinary course of business;

 

(e) Indebtedness
of an Obligor and its Subsidiaries to the extent the same is permitted as an Investment pursuant to Section 9.05;

 

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Warrant Obligations) pursuant to the terms of the applicable promissory notes or an intercompany subordination agreement,
in each case in form and substance satisfactory to the Administrative Agent in its sole discretion; 

 

(q) Indebtedness
owed to Pfizer, Inc. pursuant to the terms of that certain Asset Purchase and Collaboration Agreement, dated as of June 26, 2015,
by and among Pfizer Research (NC), Inc. and Parent, as amended by that certain Amendment to Asset Purchase and Collaboration Agreement,
dated as of July 15, 2016; and

 

(r) (A)
the Bridge Notes, provided that on or prior to the Closing Date, the Bridge Notes have been amended in form and substance
satisfactory to the Administrative Agent to subordinate right of payment to the payment in full of the Obligations (other than
the Warrant Obligations), subject to permitted payments under Section 9.07, and (B) any Permitted Refinancings thereof, provided
that Parent may elect to increase the interest rate on such Bridge Notes to 12% per annum, payable in accordance with Section
9.07 hereof; and

 

(s) Indebtedness
incurred under the Subordinated Notes.

 

Section
9.02. Liens. Such Obligor will not, and will not permit any of its Subsidiaries to, create, incur, assume or permit to exist
any Lien on any property now owned or hereafter acquired by it or such Subsidiary, except:

 

(a) Liens
securing the Obligations;

 

(b) any
Lien on any property or asset of such Obligor or any of its Subsidiaries existing on the Closing Date and set forth on Schedule
7.13(c); provided that (i) no such Lien shall extend to any other property or asset of such Obligor or any of its Subsidiaries
other than that which it secures on the date hereof and any cross-collateralization of other assets financed with the same holder
of such Lien, and (ii) any such Lien shall secure only those obligations which it secures on the Closing Date and extensions,
renewals and replacements thereof that do not increase the outstanding principal amount thereof, plus fees and expenses incurred
in connection therewith;

 

(c) Liens
securing Indebtedness permitted by Section 9.01(g); provided that (i) such Liens are limited solely to the assets, products,
proceeds and books and records permitted to be secured pursuant to Section 9.01(g), and (ii) the Indebtedness secured thereby
does not exceed the lower of the cost or fair market value of the assets being financed or acquired and Liens incurred in connection
with extension, renewal or refinancing of such Indebtedness;

 

(d) Liens
imposed by any applicable Law arising in the ordinary course of business, including (but not limited to) carriers’, warehousemen’s,
landlord’s and mechanics’ liens and other similar Liens arising in the ordinary course of business and which (x) do
not in the aggregate materially detract from the value of the property subject thereto or materially impair the use thereof in
the operations of the business of such Person

 

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(d) Certain
Covenants. Any Obligor shall fail to observe or perform any covenant, condition or agreement contained in Sections 8.03 (with
respect to such Obligor’s existence), 8.11, 8.12, 8.14, 8.16, 8.21, 8.22, 8.23, 8.24, 8.25,
Section 9 or Section 10.

 

(e) Other
Covenants. Any Obligor shall fail to observe or perform any covenant or agreement contained in this Agreement (other than
those specified in Section 11.01(a), (b) or (d)) or any other Loan Document, and, in the case of any failure that is capable of
cure, such failure shall continue unremedied for a period of thirty (30) or more days.

 

(f) Payment
Default on Other Indebtedness. Any Obligor or any of its Subsidiaries shall fail to make any payment (whether of principal
or interest and regardless of amount) in respect of any Material Indebtedness, when and as same shall become due and payable after
giving effect to any applicable grace or cure period as originally provided by the terms of such Indebtedness.

 

(g) Other
Defaults on Other Indebtedness. (i) Any material breach of, or “event of default” or similar event under, the
Contract governing any Material Indebtedness shall occur, or (ii) any event or condition occurs (x) that results in any Material
Indebtedness becoming due prior to its scheduled maturity or (y) that enables or permits (with or without the giving of notice,
the lapse of time or both) the holder or holders of such Material Indebtedness or any trustee or agent on its or their behalf
to cause such Material Indebtedness to become due, or to require the prepayment, repurchase, redemption or defeasance thereof,
prior to its scheduled maturity; provided that this Section 11.01(g) shall not apply to secured Indebtedness that becomes
due as a result of the voluntary sale or transfer of the property or assets securing such Material Indebtedness; provided further
that if the holder or holders of such Material Indebtedness or any trustee or agent on its or their behalf waives any such
event or condition within the time period set forth therein, then such event or condition shall not be an Event of Default hereunder.

 

 (h) Reserved.

 

(i) Insolvency,
Bankruptcy, Etc. (i) Any Obligor or any of its Subsidiaries generally does not pay its debts as the same become due or admits
in writing its inability to pay its debts generally; (ii) any Obligor or any of its Subsidiaries institutes any Insolvency Proceeding;
(iii) any Obligor or any of its Subsidiaries takes any corporate action to approve, effect, consent to or authorize any of the
actions described in Section 11.01(i)(ii); or (iv) any Insolvency Proceeding is filed against any Obligor or any of its Subsidiaries
and, such Insolvency Proceeding continues undismissed, or unstayed and in effect, for a period of sixty (60) days after the institution
thereof.

 

(j) Judgments.
One (1) or more judgments for the payment of money in an aggregate amount in excess of $1,000,000 (to the extent not covered by
independent third party insurance as to which the insurer has been notified of the potential claim and does not dispute coverage)
shall be rendered against any Obligor or any of its Subsidiaries or any

 

    -23-

     

    

 

purposes of this Agreement and the other
Loan Documents.

 

Section
11.04. Prepayment Premium and Prepayment Price. For the avoidance of doubt, (x)
the applicable Prepayment Premium (as a component of the Prepayment Price) shall be due and payable at any time the
Closing Date Term Loan becomes due and payable in full prior to the Maturity Date in accordance
with the terms hereof and (y) the Exit Fee shall be due and payable at any time the First Amendment
Term Loan becomes due and payable in full prior to the First Amendment Maturity Date in accordance with the terms hereof, in the
case of each of clause (x) and (y) above, whether due to acceleration pursuant to the terms of this Agreement (in which
case it shall be due immediately, upon the giving of notice to the Borrower or automatically by operation of law or otherwise
in accordance with Section 11.02) (including, without limitation, on account of any bankruptcy filing). In view of the impracticability
and extreme difficulty of ascertaining the actual amount of damages to the Lenders or profits lost by the Lenders as a result
of such acceleration, and by mutual agreement of the parties as to a reasonable estimation and calculation of the lost profits
or damages of the Lenders, the Prepayment Premium and the Exit Fee, as applicable, shall
be due and payable upon such date. Each Obligor hereby waives any defense to payment, whether such defense may be based in public
policy, ambiguity, or otherwise. The Obligors and the Lenders acknowledge and agree that any Prepayment Premium or
Exit Fee due and payable in accordance with this Agreement shall not constitute unmatured interest, whether under Section
5.02(b)(3) of the Bankruptcy Code or otherwise. Each Obligor further acknowledges and agrees, and waives any argument to the contrary,
that payment of such amount does not constitute a penalty or an otherwise unenforceable or invalid obligation.

 

Section
12. Guarantee.

 

Section
12.01. The Guarantee. Parent and the Subsidiary Guarantors hereby jointly and severally guarantee to the Administrative Agent
and the Lenders, and their successors and assigns, the prompt payment in full when due (whether at stated maturity, by acceleration
or otherwise) of the principal of and interest on the Term Loan, all fees and other amounts and Obligations from time to time
owing to the Administrative Agent and the Lenders by the Borrower and each other Obligor under this Agreement or under any other
Loan Document, in each case strictly in accordance with the terms hereof and thereof (such obligations being herein collectively
called the “Guaranteed Obligations”). Parent and the Subsidiary Guarantors hereby further jointly and severally
agree that if the Borrower or any other Obligor shall fail to pay in full when due (whether at stated maturity, by acceleration
or otherwise) any of the Guaranteed Obligations, Parent and the Subsidiary Guarantors will promptly pay the same, without any
demand or notice whatsoever, and that in the case of any extension of time of payment or renewal of any of the Guaranteed Obligations,
the same will be promptly paid in full when due (whether at extended maturity, by acceleration or otherwise) in accordance with
the terms of such extension or renewal.

 

Section
12.02. Obligations Unconditional. The obligations of Parent and the Subsidiary Guarantors under Section 12.01 are absolute
and unconditional, joint and several, irrespective of the value, genuineness, validity, regularity or enforceability of the obligations
of the Borrower under this Agreement or any other agreement or instrument referred to herein, or any substitution, release or
exchange of any other guarantee of or security for any of the Guaranteed Obligations, and, to the fullest extent permitted by
Law, irrespective of any other circumstance whatsoever that

 

    -24-

     

    

 

ANNEX
B

 

Conformed
Credit Agreement

 

(First Amendment)

 

     

     

    

 

Execution
Version

 

 

 

Credit
Agreement and Guaranty1

 

dated
as of

 

August 31, 2018

 

among

 

Icagen-t,
Inc.

as
the Borrower,

 

Icagen,
Inc.

as
Parent,

 

Certain
Subsidiaries of Parent from Time to Time Party hereto,

as
the Subsidiary Guarantors,

 

The
Lenders from Time to Time Party hereto,

as
the Lenders,

 

and

 

Perceptive
Credit Holdings II, LP 

as
the Administrative Agent

 

U.S. $8,000,000

 

 

 

 

1
Conformed to reflect changes from the Forbearance Agreement and First Amendment to Credit Agreement and Guaranty dated as
of August 27, 2019.

 

     

     

    

 

Table
of Contents

 

	Section 	Heading	Page
	 	 	 
	Section 1.	Definitions	1
	 	 	 
	Section 1.01.	Certain Defined Terms	1
	Section 1.02.	Accounting Terms and Principles	24
	Section 1.03.	Interpretation	24
	Section 1.04.	Changes to GAAP	26
	 	 	 
	Section 2.	The Commitments and the Closing Date Term Loan and First Amendment Term Loan	26
	 	 	 
	Section 2.01.	Closing Date Term Loan and First Amendment Term Loan	26
	Section 2.02.	Notes	27
	Section 2.03.	Use of Proceeds	27
	Section 2.04.	Proportionate Shares	28
	 	 	 
	Section 3.	Payments of Principal and Interest	28
	 	 	 
	Section 3.01.	Repayments and Prepayments Generally; Application	28
	Section 3.02.	Interest	28
	Section 3.03.	Prepayments; Prepayment Premium	29
	Section 3.04.	Fees	31
	 	 	 
	Section 4.	Payments, Etc	31
	 	 	 
	Section 4.01.	Payments	31
	Section 4.02.	Computations	32
	Section 4.03.	Set-Off	32
	 	 	 
	Section 5.	Yield Protection, Etc	32
	 	 	 
	Section 5.01.	Additional Costs	32
	Section 5.02.	Illegality	33
	Section 5.03.	Taxes	34
	Section 5.04.	Delay in Requests	38
	 	 	 
	Section 6.	Conditions Precedent	38
	 	 	 
	Section 6.01.	Conditions to the Closing Date	38
	 	 	 
	Section 7.	Representations and Warranties	41
	 	 	 
	Section 7.01.	Power and Authority	41
	Section 7.02.	Authorization; Enforceability	41
	Section 7.03.	Governmental and Other Approvals; No Conflicts	41
	Section 7.04.	Financial Statements; Material Adverse Change	41
	Section 7.05.	Properties	42

 

    -i-

     

    

 

	Section 7.06.	No Actions or Proceedings	44
	Section 7.07.	Compliance with Laws and Agreements	45
	Section 7.08.	Taxes	45
	Section 7.09.	Full Disclosure	45
	Section 7.10.	Investment Company and Margin Stock Regulation	45
	Section 7.11.	Solvency	46
	Section 7.12	Equity Holders; Subsidiaries; Equity Investments	46
	Section 7.13.	Indebtedness and Liens	46
	Section 7.14.	Material Agreements	46
	Section 7.15.	Restrictive Agreements	47
	Section 7.16.	Real Property	47
	Section 7.17.	Pension Matters	47
	Section 7.18.	Priority of Obligations; Collateral; Security Interest	47
	Section 7.19.	Regulatory Approvals	47
	Section 7.20.	Transactions with Affiliates	48
	Section 7.21.	OFAC	48
	Section 7.22.	Anti-Corruption	49
	Section 7.23.	Deposit and Disbursement Accounts	49
	Section 7.24.	Royalty and Other Payments	49
	 	 	 
	Section 8.	Affirmative Covenants	49
	 	 	 
	Section 8.01.	Financial Statements and Other Information	49
	Section 8.02.	Notices of Material Events	52
	Section 8.03.	Existence; Conduct of Business	54
	Section 8.04.	Payment of Obligations	54
	Section 8.05.	Insurance	55
	Section 8.06.	Books and Records; Inspection Rights	55
	Section 8.07.	Compliance with Laws and Other Obligations	56
	Section 8.08.	Maintenance of Properties, Etc	56
	Section 8.09.	Maintenance of Regulatory Approvals and Material Intellectual Property	56
	Section 8.10.	Action Under Environmental Laws	56
	Section 8.11.	Use of Proceeds	57
	Section 8.12.	Certain Obligations Respecting Subsidiaries; Further Assurances	57
	Section 8.13.	Termination of Non-Permitted Liens	58
	Section 8.14.	Intellectual Property	58
	Section 8.15.	ERISA Compliance	58
	Section 8.16.	Cash Management	58
	Section 8.17.	Post-Closing Obligations	58
	Section 8.18.	Milestone	59
	Section 8.19.	Icagen-T Lien	59
	Section 8.20.	Board Observer Rights	59
	Section 8.21.	Cash Flow	59
	Section 8.22.	Sanofi Agreement	59
	Section 8.23.	Tuscon Real Estate	59

 

    -ii-

     

    

 

	Section 8.24.	Series C Capital Raise	60
	Section 8.25.	Subordinated Notes	60
	 	 	 
	Section 9.	Negative Covenants	60
	 	 	 
	Section 9.01.	Indebtedness	60
	Section 9.02.	Liens	62
	Section 9.03.	Fundamental Changes and Acquisitions	64
	Section 9.04.	Lines of Business	64
	Section 9.05.	Investments	65
	Section 9.06.	Restricted Payments	66
	Section 9.07.	Payments of Indebtedness	67
	Section 9.08.	Change in Fiscal Year	67
	Section 9.09.	Sales of Assets, Etc	67
	Section 9.10.	Transactions with Affiliates	68
	Section 9.11.	Restrictive Agreements	68
	Section 9.12.	Modifications and Terminations of Material Agreements and Organic Documents	68
	Section 9.13.	Licensing of Intellectual Property	69
	Section 9.14.	Sales and Leasebacks	69
	Section 9.15.	Hazardous Material	69
	Section 9.16.	Accounting Changes	69
	Section 9.17.	Compliance with ERISA	69
	 	 	 
	Section 10.	Financial Covenants	69
	 	 	 
	Section 10.01.	Minimum Liquidity	69
	Section 10.02.	Minimum Revenue	70
	 	 	 
	Section 11.	Events of Default	70
	 	 	 
	Section 11.01.	Events of Default	70
	Section 11.02.	Remedies	73
	Section 11.03.	Additional Remedies	73
	Section 11.04.	Prepayment Premium and Redemption Price	74
	 	 	 
	Section 12.	Guarantee	74
	 	 	 
	Section 12.01.	The Guarantee	74
	Section 12.02.	Obligations Unconditional	74
	Section 12.03.	Reinstatement	75
	Section 12.04.	Subrogation	75
	Section 12.05.	Remedies	75
	Section 12.06.	Instrument for the Payment of Money	76
	Section 12.07.	Continuing Guarantee	76
	Section 12.08.	Rights of Contribution	76
	Section 12.09.	General Limitation on Guarantee Obligations	77

 

    -iii-

     

    

 

	Section 13.	Administrative Agent	77
	 	 	 
	Section 13.01.	Appointment	77
	Section 13.02.	Rights as a Lender	77
	Section 13.03.	Exculpatory Provisions	78
	Section 13.04.	Reliance by Administrative Agent	79
	Section 13.05.	Delegation of Duties	79
	Section 13.06.	Resignation of Agent	79
	Section 13.07.	Non-Reliance on Administrative Agent and Other Lenders	80
	Section 13.08.	Administrative Agent May File Proofs of Claim	80
	Section 13.09.	Collateral and Guaranty Matters; Appointment of Collateral Agent	81
	 	 	 
	Section 14.	Miscellaneous	82
	 	 	 
	Section 14.01.	No Waiver	82
	Section 14.02.	Notices	82
	Section 14.03.	Expenses, Indemnification, Etc	82
	Section 14.04.	Amendments, Etc	83
	Section 14.05.	Successors and Assigns	84
	Section 14.06.	Survival	86
	Section 14.07.	Captions	86
	Section 14.08.	Counterparts	86
	Section 14.09.	Governing Law	86
	Section 14.10.	Jurisdiction, Service of Process and Venue	86
	Section
    14.11.	Waiver of Jury Trial	87
	Section 14.12.	Waiver of Immunity	87
	Section 14.13.	Entire Agreement	87
	Section 14.14.	Severability	87
	Section 14.15.	No Fiduciary Relationship	88
	Section 14.16.	Confidentiality	88
	Section 14.17.	Right of Setoff	89
	Section 14.18.	Judgment Currency	89
	Section 14.19.	USA PATRIOT Act	89
	Section 14.20.	Release of Collateral and Guarantees; Non-Disturbance Agreements 	89
	Section 14.21.	Acknowledgement and Consent to
    Bail-In of EEA Financial Institutions	90

 

    -iv-

     

    

 

Schedules
and Exhibits

 

	Schedule 1	—	Commitments and Warrant Shares
	Schedule 7.05(b)	—	Obligor Intellectual Property
	Schedule 7.05(c)	—	Material Intellectual Property
	Schedule 7.06(a)	—	Certain Litigation
	Schedule 7.06(c)	—	Labor Matters
	Schedule 7.08	—	Taxes
	Schedule 7.12(a)	—	Equity Holders
	Schedule 7.12(b)	—	Information Regarding Subsidiaries
	Schedule 7.12(c)	—	Equity Investments
	Schedule 7.13(a)	—	Outstanding Indebtedness
	Schedule 7.13(b)	—	Pay-Off Indebtedness
	Schedule 7.13(c)	—	Liens
	Schedule 7.14	—	Material Agreements of Obligors
	Schedule 7.15	—	Restrictive Agreements
	Schedule 7.16	—	Real Property Owned or Leased by Obligors or any Subsidiary
	Schedule 7.17	—	Pension Matters
	Schedule 7.19(b)	—	Regulatory Approvals
	Schedule 7.19(e)	—	Certain Regulatory Matters
	Schedule 7.20	—	Transactions with Affiliates
	Schedule 7.21	—	OFAC Matters
	Schedule 7.23	—	Deposit and Disbursement Accounts
	Schedule 7.24	—	Royalty and Payments
	Schedule 8.17	—	Post-Closing Obligations
	Schedule 9.05	—	Existing Investments
	Schedule 9.10	—	Transactions with Affiliates
	Schedule 9.14	—	Permitted Sales and Leasebacks
	Schedule 10.02	—	Contemplated Collaboration Agreement

 

    -v-

     

    

 

	Exhibit A	—	Form of Note
	Exhibit B	—	[Reserved]
	Exhibit C	—	Form of Guarantee Assumption Agreement
	Exhibit D-1	—	Forms of U.S. Tax Compliance Certificate
	Exhibit D-2	—	Forms of U.S. Tax Compliance Certificate
	Exhibit D-3	—	Forms of U.S. Tax Compliance Certificate
	Exhibit D-4	—	Forms of U.S. Tax Compliance Certificate
	Exhibit E	—	Form of Compliance Certificate
	Exhibit F	—	Form of Assignment and Assumption
	Exhibit G	—	Form of Landlord Consent
	Exhibit H	—	Form of Security Agreement
	Exhibit I	—	Form of Collateral Questionnaire
	Exhibit J	—	Form of Patent Security Agreement
	Exhibit K	—	Form of Trademark Security Agreement
	Exhibit L	—	Form of Copyright Security Agreement
	Exhibit M	—	Form of Closing Date Certificate

 

    -vi-

     

    

  

Credit
Agreement and Guaranty

 

Credit
Agreement and Guaranty, dated as of August 31, 2018 (this “Agreement”), among Icagen-T, Inc., a Delaware corporation
(the “Borrower”), Icagen, Inc., a Delaware corporation (“Parent”), certain of Parent’s
Subsidiaries from time to time parties hereto, the lenders from time to time party hereto (each, a “Lender” and
collectively, the “Lenders”), and Perceptive Credit Holdings II, LP, as administrative agent for the Lenders
(in such capacity, the “Administrative Agent”).

 

Witnesseth:

 

Whereas,
the Borrower has requested that the Lenders provide
a senior secured term loan facility to the Borrower in an aggregate principal amount of $10,000,000; and

 

Whereas,
the Lenders are willing, on the terms and subject to the conditions set forth herein, to provide such senior secured term loan
facility.

 

Now,
Therefore, the parties hereto agree as follows:

 

Section
1. Definitions.

 

Section
1.01. Certain Defined Terms. As used herein, the following terms have the following respective meanings:

 

“Accounting
Change Notice” has the meaning set forth in Section 1.04(a).

 

“Acquisition” means
any transaction, or any series of related transactions, by which any Person directly or indirectly, by means of a take-over
bid, tender offer, amalgamation, merger, purchase of assets, or similar transaction having the same effect as any of the
foregoing, (i) acquires all or substantially all of the assets, business unit or division of any Person, (ii) acquires
control of Equity Interests of a Person representing more than fifty percent (50%) of the ordinary voting power for the
election of directors to the board of directors or other governing body of such Person, or (iii) acquires control of more
than fifty percent (50%) of the Equity Interests in any Person.

 

“Act”
has the meaning set forth in Section 14.19.

 

“Administrative
Agent” has the meaning set forth in the preamble hereto.

 

“Affiliate”
means, with respect to a specified Person, another Person that directly, or indirectly through one or more intermediaries,
Controls or is Controlled by or is under common Control with the Person specified; provided that, with respect to any Lender,
an Affiliate of such Lender shall include, without limitation, all of such Lender’s Related Funds, but shall exclude any
portfolio companies or partners of such Lender or of such Related Funds.

 

     

     

    

 

“Agreement”
has the meaning set forth in the preamble hereto.

 

“Applicable
Margin” means with respect to the Closing Date Term Loan, nine and three- quarters percent (9.75%), as such percentage
may be increased pursuant to Section 3.02(b).

 

“Asset
Sale” has the meaning set forth in Section 9.09.

 

“Assignment
and Assumption” means an assignment and assumption entered into by a Lender and an assignee of such Lender in substantially
the form of Exhibit F.

 

“Bail-In
Action” means the exercise of any Write-Down and Conversion Powers by the applicable EEA Resolution Authority in respect
of any liability of an EEA Financial Institution.

 

“Bail-In
Legislation” means, with respect to any EEA Member Country implementing Article 55 of Directive 2014/59/EU of the European
Parliament and of the Council of the European Union, the implementing law for such EEA Member Country from time to time which
is described in the EU Bail-In Legislation Schedule.

 

“Bailee
Letter” means a bailee letter in form and substance reasonably satisfactory to the Administrative Agent.

 

“Bankruptcy
Code” means Title 11 of the United States Code entitled “Bankruptcy”.

 

“Board”
means, with respect to any Person, the board of directors (or equivalent management body) of such Person or any committee
thereof duly authorized to act on behalf of such board or management body.

 

“Borrower”
has the meaning set forth in the preamble hereto.

 

“Borrowing”
means the borrowing of the Term Loan on the Closing Date.

 

“Bridge
Notes” means, collectively, those certain 10% Subordinated Promissory Notes in the aggregate principal amount of $500,000,
issued by Parent pursuant to those certain Securities Purchase Agreements, dated as of August 13, 2018, by and among Parent and
the investors from time to time party thereto.

 

“Business
Day” means a day (other than a Saturday or Sunday) on which commercial banks are not authorized or required to close
in New York City.

 

“Calculation
Date” has the meaning set forth in Section 10.02.

 

“Capital
Lease Obligations” means, as to any Person, the obligations of such Person to pay rent or other amounts under a
lease of (or other agreement conveying the right to use) real and/or personal property which obligations are required to be
classified and accounted for as a capital lease on a balance sheet of such Person under GAAP and, for purposes of this
Agreement, the amount of such obligations shall be the capitalized amount thereof, determined in accordance with
GAAP.

 

    -2-

     

    

 

“Casualty
Event” means the damage, destruction or condemnation, as the case may be, of property of any Person or any of its Subsidiaries
excluding any such property with a fair market value as of the date thereof of less than $1,000,000 per occurrence.

 

“Casualty
Event Reinvestment Notice” has the meaning set forth in Section 3.03(b).

 

“Change
of Control” means at any time of determination, either (i) the acquisition of ownership, directly or indirectly, beneficially
or of record, by any Person (or group of Persons acting jointly or otherwise in concert) (other than the Management Investors)
of Equity Interests of Parent having more than thirty-five percent (35%) of the aggregate ordinary voting power, determined on
a fully diluted basis; (ii) Parent shall cease to own, directly or indirectly, beneficially and of record, one hundred percent
(100%) of the issued and outstanding Equity Interests of each of its Subsidiaries (except for any such securities in the nature
of directors’ qualifying shares required pursuant to applicable Law), in each case free and clear of all Liens except Liens
created by the Security Documents; (iii) during any period of twelve (12) consecutive calendar months, the occupation of a majority
of the seats (other than vacant seats) on the board of directors of Parent by Persons who were neither (a) nominated by the board
of directors of Parent, nor (b) appointed by directors on the board of directors on the date hereof or so nominated; (iv) the
sale of all or substantially all of the property or business of Parent and its Subsidiaries, taken as a whole; or (v) a Key Person
Event shall have occurred.

 

“Claims”
includes litigations, claims, demands, complaints, grievances, actions, suits, orders, charges, indictments, prosecutions,
information (brought by a public prosecutor without grand jury indictment) or other similar processes, assessments or reassessments.

 

“Closing
Date” means August 31, 2018.

 

“Closing
Date Commitment” means the commitment of a Lender to make or otherwise fund a Closing Date Term Loan and “Closing
Date Commitments” means such commitments of all Lenders in the aggregate. The amount of each Lender’s Closing
Date Commitment is set forth on Schedule 1. The aggregate Closing Date Commitments of all Lenders as of the Closing Date is $8,000,000.

 

“Closing
Date Term Loan” means each loan advanced by a Lender on the Closing Date pursuant to Section 2.01(a). For purposes of
clarification, any calculation of the aggregate outstanding principal amount of the Closing Date Term Loan on any date of determination
shall mean the aggregate principal amount of the Closing Date Term Loan made pursuant to Section 2.01(a) that has not yet been
repaid as of such date.

 

“Closing
Fee” has the meaning set forth in Section 3.04.

 

“Code”
means the Internal Revenue Code of 1986, as amended.

 

    -3-

     

    

 

“Collateral”
means any asset or property of any Person in which a Lien is purported to be granted under any Loan Document (or all such
property, as the context may require).

 

“Collateral
Questionnaire” means the collateral questionnaire in substantially the form set forth in Exhibit I which shall be delivered
pursuant to Section 6.01(k).

 

“Commitment”
means, collectively, the Closing Date Commitment and the First Amendment Date Commitment.

 

“Committee”
has the meaning set forth in Section 8.20.

 

“Commodity
Account” means a “Commodity Account” as defined in the NY UCC.

 

“Compliance
Certificate” has the meaning set forth in Section 8.01(d).

 

“Connection
Income Taxes” means Other Connection Taxes that are imposed on or measured by net income (however denominated) or that
are franchise Taxes or branch profits Taxes.

 

“Consolidated
Net Revenue” means revenue of Parent and its Subsidiaries determined on a consolidated basis in accordance with GAAP;
provided, however, that Consolidated Net Revenue shall exclude any upfront fees and one-time milestone payments received
by Parent or any of its Subsidiaries from a collaboration agreement with a pharmaceutical or biotechnology company other than
those upfront fees received by Parent or any of its Subsidiaries in connection with the collaboration agreements contemplated
to be entered into on Schedule 10.02.

 

“Contracts”
means any contract, license, lease, agreement, obligation, promise, undertaking, understanding, arrangement, document, commitment,
entitlement or engagement under which a Person has, or will have, any liability or contingent liability (in each case, whether
written or oral, express or implied and whether in respect of monetary or payment obligations, performance obligations or otherwise).

 

“Control”
means, in respect of a particular Person, the possession, directly or indirectly, of the power to direct or cause the direction
of the management or policies of such Person, whether through the ability to exercise voting power, by contract or otherwise.
“Controlling” and “Controlled” have meanings correlative thereto.

 

“Controlled
Account” has the meaning set forth in Section 8.16(a).

 

“Copyright”
means all copyrights, copyright registrations and applications for copyright registrations, including all renewals and extensions
thereof, all rights to recover for past, present or future infringements thereof and all other rights whatsoever accruing thereunder
or pertaining thereto.

 

“Default”
means any Event of Default and any event that has occurred which, upon the giving of notice thereof, or the lapse of time,
or both, would constitute an Event of Default.

 

    -4-

     

    

 

“Default
Rate” has the meaning set forth in Section 3.02(b).

 

“Deposit
Account” is defined in the Security Agreement.

 

“Designated
Jurisdiction” means any country or territory to the extent that such country or territory is the subject of any Sanction.

 

“Disqualified
Equity Interests” means, with respect to any Person, any Equity Interest of such Person that, by its terms (or by
the terms of any security or other Equity Interest into which it is convertible or for which it is exchangeable), or upon the
happening of any event or condition (i) matures or is mandatorily redeemable (other than solely for Qualified Equity
Interests), including pursuant to a sinking fund obligation or otherwise, (ii) is redeemable at the option of the holder
thereof (other than solely for Qualified Equity Interests), in whole or in part, (iii) provides for the scheduled payments of
dividends in cash, or (iv) is or becomes convertible into or exchangeable for Indebtedness or any other Equity Interests that
would constitute Disqualified Equity Interests, in each case, prior to the date that is one hundred and eighty (180) days
after the Maturity Date; provided that, if such Equity Interests are issued pursuant to any plan for the benefit of
directors, officers, employees or consultants of such Person or by any such plan to such directors, officers, employees or
consultants, such Equity Interests shall not constitute Disqualified Equity Interests solely because they may be required to
be repurchased by such Person upon the death, disability, retirement or termination of employment or service of such
director, officer, employee or consultant.

 

“Dollars”
and “$” means lawful money of the United States of America.

 

“EEA
Financial Institution” means (a) any credit institution or investment firm established in any EEA Member Country
which is subject to the supervision of an EEA Resolution Authority, (b) any entity established in an EEA Member Country which
is a parent of an institution described in clause (a) of this definition, or (c) any financial institution established in an
EEA Member Country which is a subsidiary of an institution described in clauses (a) or (b) of this definition and is subject
to consolidated supervision with its parent.

 

“EEA
Member Country” means any of the member states of the European Union, Iceland, Liechtenstein, and Norway.

 

“EEA
Resolution Authority” means any public administrative authority or any person entrusted with public administrative authority
of any EEA Member Country (including any delegee) having responsibility for the resolution of any EEA Financial Institution.

 

“Eligible
Transferee” means and includes (i) any commercial bank, (ii) any insurance company, (iii) any finance company, (iv)
any financial institution, (v) any investment fund that invests in loans, (vi) with respect to any Lender, any of its Affiliates,
and (vii) any other “accredited investor” (as defined in Regulation D of the Securities Act) that is principally in
the business of managing investments or holding assets for investment purposes; provided that so long as no Event of Default
has occurred and is continuing, an Eligible Transferee shall not include any competitor of any Obligor.

 

    -5-

     

    

 

“Environmental
Law” means any federal, state, provincial or local governmental law, rule, regulation, order, writ, judgment, injunction
or decree, whether U.S. or non-U.S., relating to pollution or protection of the environment or the treatment, storage, disposal,
release, threatened release or handling of hazardous materials, and all local laws and regulations, whether U.S. or non-U.S.,
related to environmental matters and any specific agreements entered into with any Governmental Authorities which include commitments
related to environmental matters.

 

“Equity
Interests” means, with respect to any Person (for purposes of this defined term, an “issuer”), all shares
of, interests or participations in, or other equivalents in respect of such issuer’s capital stock, including all membership
interests, partnership interests or equivalent, and all debt or other securities directly or indirectly exchangeable, exercisable
or otherwise convertible into such issuer’s capital stock, whether outstanding as of the Closing Date or issued after the
Closing Date, and in each case however designated and whether voting or non-voting.

 

“ERISA”
means the United States Employee Retirement Income Security Act of 1974, as amended.

 

“ERISA
Affiliate” means, collectively, any Obligor, Subsidiary thereof, and any Person under common control, or treated as
a single employer, with any Obligor or Subsidiary thereof, within the meaning of Section 414(b), (c) or, solely with respect to
Code Section 412 or ERISA Section 302, (m) or (o) of the Code.

 

“ERISA
Event” means (i) a reportable event as defined in Section 4043 of ERISA with respect to a Title IV Plan, excluding,
however, such events as to which the PBGC by regulation has waived the requirement of Section 4043(a) of ERISA that it be
notified within thirty (30) days of the occurrence of such event; (ii) a withdrawal by any Obligor or any ERISA Affiliate
thereof from a Title IV Plan or the termination of any Title IV Plan resulting in liability under Sections 4063 or 4064 of
ERISA; (iii) the withdrawal of any Obligor or any ERISA Affiliate thereof in a complete or partial withdrawal (within the
meaning of Section 4203 and 4205 of ERISA) from any Multiemployer Plan if there is any liability therefore, or the receipt by
any Obligor or any ERISA Affiliate thereof of notice from any Multiemployer Plan that it is in insolvency pursuant to 4245 of
ERISA; (iv) the filing of a notice of intent to terminate, the treatment of a plan amendment as a termination under Section
4041 or 4041A of ERISA, or the commencement of proceedings by the PBGC to terminate a Title IV Plan or Multiemployer Plan;
(v) the imposition of liability on any Obligor or any ERISA Affiliate thereof pursuant to Sections 4062(e) or 4069 of ERISA
or by reason of the application of Section 4212(c) of ERISA; (vi) the failure by any Obligor or any ERISA Affiliate
thereof to make any required contribution to a Title IV Plan, or the failure to meet the minimum funding standard of Section
412 of the Code with respect to any Title IV Plan (whether or not waived in accordance with Section 412(c) of the Code) or
the failure to make by its due date a required installment under Section 430 of the Code with respect to any Title IV Plan or
the failure to make any required contribution to a Multiemployer Plan; (vii) the determination that any Title IV Plan is
considered an at-risk plan or a plan in endangered to critical status within the meaning of Sections 430, 431 and 432 of the
Code or Sections 303, 304 and 305 of ERISA; (viii) an event or condition which would reasonably be expected to constitute
grounds under Section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any Title IV Plan
or Multiemployer Plan; (ix) the (v) imposition of any liability under Title I or Title IV of ERISA, other than PBGC
premiums due but not delinquent under Section 4007 of ERISA, upon any Obligor or any ERISA Affiliate thereof; (x) an
application for a funding waiver under Section 412 of the Code or an extension of any amortization period pursuant to Section
433 of the Code with respect to any Title IV Plan; or (xi) the imposition of any lien (or the fulfillment of the
conditions for the imposition of any lien) on any of the rights, properties or assets of any Obligor or any ERISA Affiliate
thereof, pursuant to Title IV of ERISA, 303(k) of ERISA or Section 430(k) of the Code.

 

    -6-

     

    

 

“EU
Bail-In Legislation Schedule” means the EU Bail-In Legislation Schedule published by the Loan Market Association (or
any successor Person), as in effect from time to time.

 

“Event
of Default” has the meaning set forth in Section 11.01.

 

“Excess
Funding Guarantor” has the meaning set forth in Section 12.08.

 

“Excess
Payment” has the meaning set forth in Section 12.08.

 

“Exchange
Act” means the Securities Exchange Act of 1934, as amended.

 

“Excluded
Account” means, collectively, (i) accounts used exclusively for payroll, the withheld employee portion of payroll taxes
and other employee wage and benefit payments, and (ii) fiduciary and other trust accounts.

 

“Excluded
Taxes” means any of the following Taxes imposed on or with respect to a Recipient or required to be withheld or deducted
from a payment to a Recipient: (i) Taxes imposed on or measured by net income (however denominated), franchise Taxes and branch
profits Taxes, in each case, (x) imposed as a result of such Recipient being organized under the laws of, or having its principal
office or, in the case of any Lender, its applicable lending office located in, the jurisdiction imposing such Tax (or any political
subdivisions thereof) or (y) that are Other Connection Taxes, (ii) in the case of a Lender, U.S. federal withholding Taxes imposed
on amounts payable to or for the account of such Lender with respect to an applicable interest in a Term Loan or Commitment pursuant
to a law in effect on the date on which (1) such Lender acquires such interest in the Term Loan or Commitment (other than pursuant
to an assignment request by the Borrower pursuant to Section 5.03(h)) or (2) such Lender changes its lending office, except in
each case to the extent that, pursuant to Section 5.03, amounts with respect to such Taxes were payable either to such Lender’s
assignor immediately before such Lender became a party hereto or to such Lender immediately before it changed its lending office,
(iii) Taxes attributable to such Recipient’s failure to comply with Section 5.03(f), and (iv) any withholding Taxes imposed
under FATCA.

 

“Exit
Fee” has the meaning set forth in Section 3.04(b).

 

“Fair
Share” has the meaning set forth in Section 12.08.

 

“FATCA” means
Sections 1471 through 1474 of the Code, as of the date of this Agreement (or any amended or successor version that is
substantively comparable and not materially more onerous to comply with), any current or future regulations or official
interpretations thereof, any agreements entered into pursuant to Section 1471(b)(1) of the Code, and any fiscal or regulatory
legislation, rules or practices adopted pursuant to any intergovernmental agreement, treaty or convention among Governmental
Authorities and implementing such Sections of the Code.

 

    -7-

     

    

 

“FD&C
Act” means the U.S. Food, Drug and Cosmetic Act of 1938 (or any successor thereto), as amended from time to time, and
the rules, regulations, guidelines, guidance, documents and compliance policy guides issued or promulgated thereunder.

 

“FDA”
means the U.S. Food and Drug Administration and any successor entity.

 

“First
Amendment” means the Forbearance Agreement and First Amendment to Credit Agreement and Guaranty, dated as of August
27, 2019, among the Obligors, the Lenders and the Administrative Agent.

 

“First
Amendment Closing Fee” has the meaning set forth in Section 3.04.

 

“First
Amendment Date Commitment” means the commitment of a Lender to make or otherwise fund a First Amendment Term Loan and
“First Amendment Date Commitments” means such commitments of all Lenders in the aggregate. The amount of each
Lender’s First Amendment Date Commitment is set forth on Schedule 1. The aggregate First Amendment Date Commitments of all
Lenders as of the First Amendment Date is $2,000,000.

 

“First
Amendment Date” means August 27, 2019.

 

“First
Amendment Maturity Date” means June 30, 2020.

 

“First
Amendment Term Loan” means each loan advanced by a Lender on the First Amendment Date. For purposes of clarification,
any calculation of the aggregate outstanding principal amount of the First Amendment Term Loan on any date of determination shall
mean the aggregate principal amount of the First Amendment Term Loan made pursuant to Section 2.01(b) that has not yet been repaid
as of such date.

 

“First
Amendment Term Loan Interest Rate” means 15% per annum.

 

“Foreign
Lender” means a Lender (or, if the Lender is a disregarded entity for U.S. federal income tax purposes, the Person treated
as the owner of the assets of such Lender for U.S. federal income tax purposes) that is not a U.S. Person.

 

“Foreign
Subsidiary” means a Subsidiary of Parent that is not incorporated, formed or organized under the laws of the United
States, any State of the United States or the District of Columbia.

 

“GAAP” means
generally accepted accounting principles in the United States of America, as in effect from time to time, set forth in the
opinions and pronouncements of the Accounting Principles Board and the American Institute of Certified Public Accountants, in
the statements and pronouncements of the Financial Accounting Standards Board and in such other statements by such other
entity as may be in general use by significant segments of the accounting profession that are applicable to the circumstances
as of the date of determination. The definition of GAAP shall be subject to Sections 1.02 and 1.04.

 

    -8-

     

    

 

“Governmental
Approval” means any required consent, authorization, approval, order, license, franchise, permit, certification, accreditation,
registration, clearance, exemption, filing or notice that is issued or granted by or from (or pursuant to any act of) any applicable
Governmental Authority, including any application or submission related to any of the foregoing.

 

“Governmental
Authority” means any nation, government, branch of power (whether executive, legislative or judicial), state, province
or municipality or other political subdivision thereof and any entity exercising executive, legislative, judicial, monetary, regulatory
or administrative functions of or pertaining to government, including without limitation regulatory authorities, governmental
departments, agencies, commissions, bureaus, officials, ministers, courts, bodies, boards, tribunals and dispute settlement panels,
and other law-, rule- or regulation-making organizations or entities of any state, territory, county, city or other political
subdivision of any country, in each case whether U.S. or non-U.S.

 

“Guarantee”
of or by any Person (the “guarantor”) means any obligation, contingent or otherwise, of the guarantor guaranteeing
or having the economic effect of guaranteeing any Indebtedness or other monetary obligation of any other Person (the “primary
obligor”) in any manner, whether directly or indirectly, and including any obligation of the guarantor, direct or indirect,
(i) to purchase or pay (or advance or supply funds for the purchase or payment of) such Indebtedness or other monetary obligation
or to purchase (or to advance or supply funds for the purchase of) any security for the payment thereof, (ii) to purchase or lease
property, securities or services for the purpose of assuring the owner of such Indebtedness or other monetary obligation of the
payment thereof, (iii) to maintain working capital, equity capital or any other financial statement condition or liquidity of
the primary obligor so as to enable the primary obligor to pay such Indebtedness or other monetary obligation, or (iv) as an account
party in respect of any letter of credit or letter of guaranty issued to support such Indebtedness or monetary obligation; provided
that the term Guarantee shall not include endorsements for collection or deposit in the ordinary course of business. The amount
of any Guarantee shall be deemed to be an amount equal to the stated or determinable amount of the related primary obligation,
or portion thereof, in respect of which such Guarantee is made or, if not stated or determinable, the maximum reasonably anticipated
liability in respect thereof as determined by the guaranteeing Person in good faith.

 

“Guarantee
Assumption Agreement” means a Guarantee Assumption Agreement substantially in the form of Exhibit C by an entity that,
pursuant to Section 8.12(a), is required to become a “Subsidiary Guarantor.”

 

“Guaranteed
Obligations” has the meaning set forth in Section 12.01.

 

“Hazardous
Material” means any substance, element, chemical, compound, product, solid, gas, liquid, waste, by-product,
pollutant, contaminant or material which is hazardous or toxic, and includes, without limitation, (i) asbestos,
polychlorinated biphenyls and petroleum (including crude oil or any fraction thereof) and (ii) any material classified or
regulated as “hazardous” or “toxic” or words of like import pursuant to an Environmental
Law.

 

    -9-

     

    

 

“Hedging
Agreement” means any interest rate exchange agreement, foreign currency exchange agreement, commodity price protection
agreement or other interest or currency exchange rate or commodity price hedging arrangement.

 

“HIPAA”
means the Health Insurance Portability and Accountability Act of 1996, as amended by the Health Information Technology for
Economic and Clinical Health Act of the American Recovery and Reinvestment Act of 2009.

 

“Impermissible
Qualification” means any qualification or exception to the opinion or certification of any independent public accountant
as to any financial statement of Parent or any of its Subsidiaries which is of a “going concern” or similar nature.

 

“Indebtedness” of
any Person means, without duplication, (i) all obligations of such Person for borrowed money, (ii) all obligations of such
Person evidenced by bonds, debentures, notes or similar instruments, (iii) all obligations of such Person upon which interest
charges are customarily paid, (iv) all obligations of such Person in respect of the deferred purchase price of property or
services or under conditional sale or other title retention agreements relating to property acquired by such Person, and
including any purchase price adjustments or indemnity requirements incurred in connection with any Permitted Acquisition
(excluding current trade accounts payable incurred in the ordinary course of business), (v) all Indebtedness of others
secured by (or for which the holder of such Indebtedness has an existing right, contingent or otherwise, to be secured by)
any Lien on property owned or acquired by such Person, whether or not the Indebtedness secured thereby has been assumed, (vi)
all Guarantees by such Person of Indebtedness of others, (vii) all Capital Lease Obligations of such Person, (viii) all
obligations, contingent or otherwise, of such Person as an account party in respect of letters of credit and letters of
guaranty, (ix) obligations under any Hedging Agreement, currency swaps, forwards, futures or derivatives transactions, (x)
all obligations, contingent or otherwise, of such Person in respect of bankers’ acceptances, (xi) all obligations of
such Person under license or other agreements containing a guaranteed minimum payment or purchase by such Person, other than
operating leases entered into in the ordinary course of business and any such license or other agreement for the purchase or
use of goods, software and other intangibles, services or supplies in the ordinary course of business and (xii) any
Disqualified Equity Interests of such Person. The Indebtedness of any Person shall include the Indebtedness of any other
entity (including any partnership in which such Person is a general partner) to the extent such Person is liable therefor as
a result of such Person’s ownership interest in or other relationship with such entity, except to the extent the terms
of such Indebtedness provide that such Person is not liable therefor.

 

“Indemnified
Party” has the meaning set forth in Section 14.03(c).

 

“Indemnified
Taxes” means (i) Taxes, other than Excluded Taxes, imposed on or with respect to any payment made by or on account of
any Obligation and (ii) to the extent not otherwise described in clause (i), Other Taxes.

 

    -10-

     

    

 

“Industrial
Designs” has the meaning set forth in the Security Documents.

 

“Insolvency
Proceeding” means (i) any case, action or proceeding before any court or other Governmental Authority relating to bankruptcy,
reorganization, insolvency, liquidation, receivership, dissolution, winding-up or relief of debtors, or (ii) any general assignment
for the benefit of creditors, composition, marshaling of assets for creditors, or other similar arrangement in respect of any
Person’s creditors generally or any substantial portion of such Person’s creditors, in each case undertaken under
U.S. Federal, state or foreign Law, including the Bankruptcy Code.

 

“Intellectual
Property” means all Patents, Trademarks, Copyright, Industrial Designs, Technical Information and other intellectual
property, whether registered or not and whether existing under, U.S. or non-U.S. Law or jurisdiction, including (without limitation)
all of the following: (i) all applications or registrations relating to the foregoing; (ii) all rights and privileges arising
under any applicable Law with respect to the foregoing; (iii) rights to sue for past, present or future infringements of such
Intellectual Property; and (iv) all rights of the same or similar effect or nature in any jurisdiction corresponding to such Intellectual
Property anywhere in the world.

 

“Interest
Period” means (i) as to the Closing Date Term Loan, (a) the period commencing on (and including) the Closing Date and
ending on (and including) the last day of the calendar month in which the Closing Date occurs, and (b) thereafter, the period
beginning on (and including) the first day of each succeeding calendar month and ending on the earlier of (and including) (x)
the last day of such calendar month and (y) the Maturity Date and (ii) as to the First Amendment Term Loan, (a) the period commencing
on (and including) the First Amendment Date and ending on (and including) the last day of the calendar month in which the First
Amendment Date occurs, and (b) thereafter, the period beginning on (and including) the first day of each succeeding calendar month
and ending on the earlier of (and including) (x) the last day of such calendar month and (y) the First Amendment Maturity Date.

 

“Interest
Rate” means the sum of (i) the Applicable Margin plus (ii) the greater of (x) the Reference Rate and (y) two and one-quarter
percent (2.25%).

 

“Invention”
means any novel, inventive or useful art, apparatus, method, process, machine, manufacture or composition of matter, or any
novel, inventive and useful improvement in any art, method, process, machine, manufacture or composition of matter.

 

“Investment”
means, for any Person: (i) any direct or indirect acquisition or investment by such Person, whether by means of (a) the purchase
or other acquisition of Equity Interests or debt or other securities of another Person, (ii) a loan, advance or capital contribution
to, Guarantee or assumption of debt of, or purchase or other acquisition of any other debt or equity participation or interest
in, another Person, including any partnership or joint venture interest in such other Person, or (iii) the purchase or other acquisition
(in one transaction or a series of transactions) of all or substantially all of the property and assets or business of another
Person or assets constituting a business unit, line of business or division of such Person. The amount of an Investment will be
determined at the time the Investment is made without giving effect to any subsequent changes in value.

 

    -11-

     

    

 

“IRS”
means the U.S. Internal Revenue Service or any successor agency.

 

“Key
Person” means Richard Cunningham or such other person as may be acceptable by the Lenders as Richard Cunningham’s
replacement pursuant to the definition of “Key Person Event.”

 

“Key
Person Event” means that (a) the Key Person (i) ceases to hold the office of chief executive officer (or
equivalent) of Parent or fails to be directly and actively involved in the day to day management and direction of Parent and
its Subsidiaries and a successor reasonably acceptable to the Lenders shall not have been appointed within 90 days of such
cessation, or (ii) becomes or is an employee, manager or officer of any entity other than Parent and its Subsidiaries
and (b) Tim Tyson is no longer serving as the Chairman of the Board of Parent.

 

“Landlord
Consent” means a Landlord Consent substantially in the form of Exhibit G or in a form otherwise reasonably satisfactory
to the Administrative Agent.

 

“Law”
means any U.S. or non-U.S. federal, state, provincial, territorial, municipal or local statute, treaty, rule, guideline, regulation,
ordinance, code or administrative or judicial precedent or authority, including any interpretation or administration thereof by
any Governmental Authority charged with the enforcement, interpretation or administration thereof, and all applicable administrative
orders, directed duties, requests, licenses, authorizations and permits of, and agreements with, any Governmental Authority, in
each case, whether or not having the force of law.

 

“Lenders”
has the meaning set forth in the preamble hereto.

 

“Lien”
means any mortgage, lien, pledge, charge or other security interest, or any lease, title retention agreement, easement, right-of-way
or other encumbrance of any kind or character whatsoever or any preferential arrangement that has the practical effect of creating
a security interest.

 

“Loan
Documents” means, collectively, this Agreement, the Notes, the Warrant, the Security Documents, the Series C Preferred
Subordination Agreement, the Guarantee Assumption Agreements and any subordination agreement, intercreditor agreement or other
present or future document, instrument, agreement or certificate delivered to any Lender in connection with this Agreement or
any of the other Loan Documents, in each case, as amended, restated, supplemented or otherwise modified.

 

“Loss”
means any judgment, debt, liability, expense, cost, damage or loss, contingent or otherwise, whether liquidated or unliquidated,
matured or unmatured, disputed or undisputed, contractual, legal or equitable, including loss of value, professional fees, including
reasonable fees and disbursements of legal counsel, and all costs incurred in investigating or pursuing any Claim or any proceeding
relating to any Claim.

 

    -12-

     

    

 

“Majority
Lenders” means, at any time, Lenders having at such time in excess of fifty percent (50%) of the aggregate Commitments
(or, if such Commitments are terminated, the outstanding principal amount of the Term Loan) then in effect.

 

“Management
Investors” means any current directors, officers, management and/or employees of Parent or any of its Subsidiaries and
any of their respective family members, trusts or other estate planning vehicles and any Person owned or controlled by any of
the foregoing, in each case, holding, beneficially or of record, Equity Interests in Parent.

 

“Margin
Stock” means “margin stock” within the meaning of Regulations T, U and X.

 

“Material
Adverse Change” and “Material Adverse Effect” mean a material adverse change in or effect on (i)
the business, condition (financial or otherwise), operations or performance of Parent and its Subsidiaries, taken as a whole,
(ii) the ability of either (x) the Borrower or (y) the Obligors, taken as a whole, to perform its or their, as the case may be,
obligations under the Loan Documents, as and when due or (iii) the legality, validity, binding effect or enforceability of any
Loan Document or the rights and remedies of any Secured Party under any of the Loan Documents.

 

“Material
Agreement” means (i) any Contract to which any Obligor or any of its properties is bound or subject to and which is
listed on Schedule 7.14, (ii) any other Contract to which any Obligor is a party or a beneficiary from time to time, the
absence or termination of which could reasonably be expected to result in a Material Adverse Effect, and (iii) any other
Contract to which any Obligor is a party that during any period of 12 consecutive months is reasonably expected to (1) result
in payments or receipts (including royalty, licensing or similar payments) made to any Obligor or any of its Subsidiaries in
an aggregate amount in excess of $1,000,000 or (2) require payments or expenditures (including royalty, licensing or similar
payments) to be made by any Obligor or any of its Subsidiaries in an aggregate amount in excess of $1,000,000.

 

“Material
Indebtedness” means, at any time, any Indebtedness of any Obligor (excluding intercompany Indebtedness among Obligors
and/or their Subsidiaries to the extent permitted hereunder), the outstanding principal amount of which, individually or in the
aggregate, exceeds $500,000.

 

“Material
Intellectual Property” means (i) all Obligor Intellectual Property listed in Schedule 7.05(c) and (ii) all other Obligor
Intellectual Property, whether currently owned or licensed or acquired, developed or otherwise licensed or obtained after the
date hereof (a) the loss of which could reasonably be expected to have a Material Adverse Effect or (b) that has a fair market
value in excess of $500,000.

 

“Maturity
Date” means August 31, 2022.

 

“Mortgage”
means that certain Deed of Trust, Assignment of Rents, Fixture Filing and Security Agreement, dated as of the date hereof,
made by Borrower, as trustor, in favor of the Administrative Agent, as beneficiary.

 

    -13-

     

    

 

“Mortgaged
Premises” means the real property located at 2090 E. Innovation Park Drive, Oro Valley, Pima County, Arizona 85755.

 

“Multiemployer
Plan” means any multiemployer plan, as defined in Section 4001(a)(3) of ERISA, to which any ERISA Affiliate incurs or
otherwise has any obligation or liability, contingent or otherwise.

 

“Net
Cash Proceeds” means, with respect to the sale of the Tucson Real Estate or any Casualty Event, the amount of cash proceeds
received (directly or indirectly) from time to time by or on behalf of any Obligor after deducting therefrom only (w) reasonable
fees, costs and expenses related thereto incurred by such Obligor in connection therewith, (x) amounts required to be repaid on
account of any Permitted Indebtedness or other obligations (other than the Obligations) required to be repaid as a result of such
Casualty Event, (y) amounts required to be reserved in accordance with GAAP for indemnities and against liabilities associated
with the property damaged, destructed or condemned in such Casualty Event and (z) Taxes (including transfer Taxes or net income
Taxes) paid or payable in connection therewith; provided that amounts specified therein in respect of costs, expenses or
repayments shall only be deducted from aggregate cash proceeds to the extent such amounts are (1) actually paid to a Person that
is not an Affiliate of Parent or any of its Subsidiaries and (2) properly attributable to such Casualty Event or the sale of the
Tucson Real Estate, as applicable.

 

“Note”
means a promissory note, in substantially the form of Exhibit A hereto, executed and delivered by the Borrower to any Lender
in accordance with Section 2.02.

 

“NY
UCC” means the UCC as in effect from time to time in New York.

 

“Obligations”
means, with respect to any Obligor, all amounts, obligations, liabilities, covenants and duties of every type and description
owing by such Obligor to any Secured Party (including all Guaranteed Obligations and the Warrant Obligations), arising out of,
under, or in connection with, any Loan Document, whether direct or indirect (regardless of whether acquired by assignment), absolute
or contingent, due or to become due, whether liquidated or not, now existing or hereafter arising and however acquired, and whether
or not evidenced by any instrument or for the payment of money, including, without duplication, (i) if such Obligor is the Borrower,
the Term Loan, (ii) all interest accruing under the Loan Documents (including, but not limited to, accrued but uncapitalized PIK
Interest on the First Amendment Term Loan), whether or not accruing after the filing of any petition in bankruptcy or after the
commencement of any insolvency, reorganization or similar proceeding, and whether or not a claim for post-filing or post-petition
interest is allowed in any such proceeding, and (iii) all other fees (including, without limitation, the Exit Fee), expenses (including
fees, charges and disbursement of counsel), interest, commissions, charges, costs, disbursements, indemnities and reimbursement
of amounts paid and other sums, in each case, chargeable to such Obligor under any Loan Document.

 

“Obligor
Intellectual Property” means, at any time of determination, Intellectual Property owned by any of the Obligors at such
time including, without limitation, the Intellectual Property listed on Schedule 7.05(b).

 

    -14-

     

    

 

“Obligors”
means, collectively, the Borrower, Parent and the Subsidiary Guarantors and their respective successors and permitted assigns.

 

“Observer”
has the meaning set forth in Section 8.20.

 

“One-Month
LIBOR” means, with respect to any applicable Interest Period hereunder, the one-month London Interbank Offered Rate
for deposits in Dollars, as determined by the Administrative Agent from the appropriate Bloomberg or Telerate page selected by
the Administrative Agent (or any successor thereto or similar source reasonably determined by the Administrative Agent from time
to time), which shall be that one-month London Interbank Offered Rate for deposits in Dollars in effect at approximately 11:00
a.m. (London, England time) two (2) Business Days prior to the first Business Day of such Interest Period rounded up to the nearest
1/100 of one percent (1%). The Administrative Agent’s determination of interest rates shall be determinative in the absence
of manifest error.

 

“Organic
Document” means, for any Person, its certificate of incorporation, by-laws, certificate of partnership, partnership
agreement, certificate of formation, limited liability agreement, operating agreement and all shareholder agreements, voting trusts
and similar arrangements applicable to such Person’s Equity Interests.

 

“Other
Connection Taxes” means, with respect to any Recipient, Taxes imposed as a result of a present or former connection
between such Recipient and the jurisdiction imposing such Tax (other than connections arising from such Recipient having executed,
delivered, become a party to, performed its obligations under, received payments under, received or perfected a security interest
under, engaged in any other transaction pursuant to or enforced any Loan Document, or sold or assigned an interest in the Term
Loan or Loan Document).

 

“Other
Taxes” means all present or future stamp, court or documentary, intangible, recording, filing or similar Taxes that
arise from any payment made under, from the execution, delivery, performance, enforcement or registration of, from the receipt
or perfection of a security interest under, or otherwise with respect to, any Loan Document, except any such Taxes that are Other
Connection Taxes imposed with respect to an assignment (other than an assignment made at the request of the Borrower pursuant
to Section 5.03(h)).

 

“Parent”
has the meaning set forth in the preamble hereto.

 

“Parent
Credit Agreement” means that certain Credit Agreement and Guaranty, dated as of the date hereof, by and among Parent,
as borrower, the subsidiaries of Parent from time to time party thereto, the lenders from time to time party thereto and Perceptive
Credit Holdings II, LP, as administrative agent (as amended, restated, supplemented or otherwise modified from time to time).

 

“Parent
Loan Documents” has the meaning ascribed to the term “Loan Documents” in the Parent Credit Agreement.

 

“Participant”
has the meaning set forth in Section 14.05(e).

 

    -15-

     

    

 

“Participant
Register” has the meaning set forth in Section 14.05(e).

 

“Patents”
means all patents and patent applications, including the inventions and improvements described and claimed therein together
with the reissues, divisions, continuations, renewals, extensions and continuations in part thereof, all income, royalties, damages
and payments now or hereafter due and/or payable with respect thereto, all damages and payments for past or future infringements
thereof and rights to sue therefor, and all rights corresponding thereto throughout the world.

 

“Payment
Date” means (i) the last day of each Interest Period and (ii) the Maturity Date; provided that, in the event
any such day is not a Business Day, then the payment due on such day shall be payable on the next occurring Business Day.

 

“Pay-Off
Indebtedness” means the Indebtedness listed on Schedule 7.13(b).

 

“Pay-Off
Letters” means each payoff letter in respect of the Pay-Off Indebtedness, in form and substance reasonably satisfactory
to the Administrative Agent.

 

“PBGC”
means the United States Pension Benefit Guaranty Corporation referred to and defined in ERISA and any successor entity performing
similar functions.

 

“Permitted
Acquisition” means any Acquisition by Parent or any of its Subsidiaries whether by purchase, merger or otherwise, of
(i) all or substantially all of the assets of any U.S. Person, (ii) more than fifty percent (50%) of all voting Equity Interests
of any U.S. Person (determined on a fully diluted basis), (iii) an entire business line or unit or division of any U.S. Person
or (iv) any other asset or assets (other than assets in the nature of inventory acquired in the ordinary course of business) located
in the United States; provided that:

 

(a)
immediately prior to, and after giving effect thereto, no Default or Event of Default shall have occurred and be continuing or
would reasonably be expected to result therefrom;

 

(b)
all transactions in connection therewith shall be consummated, in all material respects, in accordance with all applicable Laws,
and in conformity in all material respects with all applicable Governmental Approvals;

 

(c)
in the case of the Acquisition of any Equity Interests of any Person, all of such Equity Interests shall be majority owned by
Parent or its Subsidiaries, and the Borrower shall have taken or caused to be taken, as of the date such Equity Interests are
acquired, all necessary actions to comply with Section 8.12(a), as applicable;

 

(d)
in the case of the Acquisition of assets, all assets acquired shall be owned by Parent or its Subsidiaries, and the Borrower shall
have taken or caused to be taken, as of the date the assets are acquired, all necessary actions to comply with Section 8.12(a),
as applicable;

 

    -16-

     

    

 

(e)
such Person (in the case of an Acquisition of Equity Interests) or assets (in the case of an Acquisition of assets or a division)
shall be engaged or used, as the case may be, in substantially the same business or lines of business in which Parent and its
Subsidiaries are engaged as of the Closing Date or a business reasonably related, incidental or complimentary thereto or a reasonable
extension thereof or a business having a similar customer base;

 

(f)
on a pro forma basis after giving effect to such Acquisition, Parent and its Subsidiaries shall be in compliance with the financial
covenants set forth in Section 10;

 

(g)
the aggregate consideration for all such Acquisitions together with all Acquisitions permitted under the Parent Credit Agreement
does not exceed $1,000,000 in cash in any fiscal year;

 

(h)
the Borrower shall have provided the Administrative Agent with at least fifteen (15) Business Days’ prior written notice
of any such Acquisition, together with summaries, prepared in reasonable detail, of all due diligence conducted by or on behalf
of Parent or the applicable Subsidiary prior to such Acquisition;

 

(i)
the Administrative Agent shall have received a certificate of a Responsible Officer of the Borrower (prepared in reasonable detail),
certifying as to any contingent liabilities and, to the extent applicable, prospective research and development costs associated
with the Person or assets being acquired; and

 

(j)
all of the assets or Equity Interests acquired in connection with such Acquisition shall be of a U.S. Person.

 

“Permitted
Cash Equivalent Investments” means (i) marketable direct obligations issued or unconditionally guaranteed by the United
States or any agency or any State thereof having maturities of not more than one (1) year from the date of acquisition, (ii) commercial
paper maturing no more than one (1) year after its creation and having the highest rating from either Standard & Poor’s
Ratings Group or Moody’s Investors Service, Inc., (iii) time deposits with, or insured certificates of deposit or banker’s
acceptances of, any commercial bank that (x) is organized under the laws of the United States or is the principal banking subsidiary
of a bank holding company organized under the laws of the United States and is a member of the Federal Reserve System and (y)
has combined capital and surplus of at least $1,000,000,000, in each case with maturities of not more than one (1) year from the
date of acquisition, and (iv) any money market funds at least ninety-five percent (95%) of the assets of which constitute investments
of the type described in clauses (i), (ii) or (iii) above.

 

“Permitted
Indebtedness” means any Indebtedness permitted under Section 9.01.

 

“Permitted
Liens” means any Liens permitted under Section 9.02.

 

“Permitted
Priority Liens” means Liens permitted under any of the clauses (b), (c), (d), (e), (f) or (i) of Section 9.02.

 

    -17-

     

    

 

“Permitted
Refinancing” means, with respect to any Permitted Indebtedness, any extension, renewal, replacement or refinancing of
such Indebtedness; provided that such extension, renewal, replacement or refinancing (i) shall not increase the outstanding
principal amount of such Indebtedness except by accrued and unpaid interest and premiums thereon and fees and expenses associated
with such extension, renewal, replacement or refinancing, (ii) contains terms relating to outstanding principal amount, amortization,
maturity, collateral (if any) and subordination (if any), and other material terms taken as a whole no less favorable in any material
respect to Parent and its Subsidiaries or the Secured Parties than the terms of any agreement or instrument governing the Indebtedness
being extended, renewed, replaced or refinanced, (iii) shall have an applicable interest rate or equivalent yield which does not
exceed the interest rate or equivalent yield of the Indebtedness being extended, renewed, replaced or refinanced, (iv) shall not
contain any new requirement to grant any Lien or to give any Guarantee that was not an existing requirement of the Indebtedness
being extended, renewed, replaced or refinanced and (v) after giving effect to such extension, renewal, replacement or refinancing,
no Default or Event of Default shall have occurred (or would reasonably be expected to occur) as a result thereof.

 

“Person”
means any individual, corporation, company, voluntary association, partnership, limited liability company, joint venture,
trust, unincorporated organization or Governmental Authority or other entity of whatever nature.

 

“PIK
Interest” shall mean payment-in-kind of interest in respect of the First Amendment Term Loan by increasing the outstanding
principal amount thereof by an amount equal to such portion of interest, rather than paying such portion of interest in cash.

 

“Prepayment
Date” has the meaning set forth in Section 3.03(a)(i).

 

“Prepayment
Premium” means with respect to any prepayment of principal of the Closing Date Term Loan referenced in Section 3.03(a)
occurring (i) on or prior to the first anniversary of the Closing Date, an amount equal to twelve percent (12%) of the aggregate
outstanding principal amount of the Closing Date Term Loan being prepaid, (ii) at any time after the first anniversary of the
Closing Date and on or prior to the second anniversary of the Closing Date, an amount equal to eight percent (8%) of the aggregate
outstanding principal amount of the Closing Date Term Loan being prepaid; and (iii) at any time after the second anniversary of
the Closing Date and on or prior to the third anniversary of the Closing Date, an amount equal to three percent (3%) of the aggregate
outstanding principal amount of the Closing Date Term Loan being prepaid on such Prepayment Date.

 

“Prepayment
Price” has the meaning set forth in Section 3.03(a)(i).

 

“Product”
means any future product developed, manufactured, licensed, marketed, sold or otherwise commercialized by any Obligor, including
any such product in development or which may be developed, in each case related to Material Intellectual Property.

 

“Product
Commercialization and Development Activities” means, with respect to any Product, any combination of research, development,
manufacture, importation, use, sale, storage, design, labeling, marketing, promotion, supply, distribution, testing, packaging,
purchasing or other
commercialization activities, receipt of payment in respect of any of the foregoing, or like activities the purpose of which is
to commercially exploit such Product.

 

    -18-

     

    

 

“Prohibited
Payment” means any bribe, rebate, payoff, influence payment, kickback or other payment or gift of money or anything
of value (including meals or entertainment) to any officer, employee or ceremonial office holder of any government or instrumentality
thereof, political party or supra-national organization (such as the United Nations), any political candidate, any royal family
member or any other person who is connected or associated personally with any of the foregoing that is prohibited under any applicable
Law for the purpose of influencing any act or decision of such payee in his official capacity, inducing such payee to do or omit
to do any act in violation of his lawful duty, securing any improper advantage or inducing such payee to use his influence with
a government or instrumentality thereof to affect or influence any act or decision of such government or instrumentality.

 

“Proportionate
Share” means, with respect to any Lender, the percentage obtained by dividing (i) the sum of the Commitment (or, if
the Commitments are terminated, the outstanding principal amount of the Term Loan) of such Lender then in effect by (ii) the sum
of the Commitments (or, if the Commitments are terminated, the outstanding principal amount of the Term Loan) of all Lenders then
in effect.

 

“Qualified
Equity Interest” means, with respect to any Person, any Equity Interest of such Person that is not a Disqualified Equity
Interest.

 

“Real
Property Security Documents” means the Mortgage, any Landlord Consents, Bailee Letters, any other mortgage or deed of
trust or any other real property security document executed or required hereunder to be executed by any Obligor and granting a
security interest in real property owned or leased (as tenant) by any Obligor in favor of the Secured Parties.

 

“Recipient”
means any Lender or the Administrative Agent.

 

“Reference
Rate” means One-Month LIBOR; provided that, if One-Month LIBOR can no longer be determined by the Administrative
Agent (in its sole discretion) or any Governmental Authority having jurisdiction over the quotation or determination of the London
Interbank Offered Rates declares that it will no longer supervise or sanction such rates for purposes of interest rates on loans,
then the Reference Rate for purposes hereof and of each other Loan Document shall be a comparable rate as may be selected by the
Administrative Agent in its reasonable discretion.

 

“Register”
has the meaning set forth in Section 14.05(d).

 

“Regulation
T” means Regulation T of the Board of Governors of the Federal Reserve System, as amended.

 

“Regulation
U” means Regulation U of the Board of Governors of the Federal Reserve System, as amended.

 

    -19-

     

    

 

“Regulation
X” means Regulation X of the Board of Governors of the Federal Reserve System, as amended.

 

“Regulatory
Approvals” means any registrations, licenses, authorizations, permits or approvals issued by any Governmental Authority
and applications or submissions related to any of the foregoing.

 

“Regulatory
Authority” means any Governmental Authority that is concerned with or has regulatory oversight with respect to the use,
control, safety, efficacy, reliability, manufacturing, marketing, distribution or sale relating to the business of an Obligor,
including the FDA and all equivalent of such agencies in other jurisdictions.

 

“Related
Fund” means, with respect to any Lender, a fund which is managed or advised by the same investment manager or investment
adviser as such Lender or, if it is managed by a different investment manager or investment adviser, a fund whose investment manager
or investment adviser is an Affiliate of the investment manager or investment adviser of such Lender.

 

“Related
Parties” has the meaning set forth in Section 14.16.

 

“Resignation
Effective Date” has the meaning set forth in Section 13.06(a).

 

“Responsible
Officer” of any Person means each of the president, chief executive officer, chief financial officer and similar officer
of such Person.

 

“Restricted
Payment” means any dividend or other distribution (whether in cash, securities or other property) with respect to any
Equity Interests of Parent or any of its Subsidiaries, or any payment (whether in cash, securities or other property), including
any (i) sinking fund or similar deposit, on account of the purchase, redemption, retirement, acquisition, cancellation or termination
of any such shares of capital stock of Parent or any of its Subsidiaries, (ii) payment of interest, principal or fees in respect
of Indebtedness owed by Parent to any holder of any capital stock of Parent or (iii) option, warrant or other right to acquire
any such shares of capital stock of Parent or any of its Subsidiaries.

 

“Restrictive
Agreement” means any indenture, agreement, instrument or other arrangement that prohibits, restricts or imposes any
condition upon (i) the ability of the Borrower or any other Obligor to create, incur or permit to exist any Lien (other than Permitted
Liens) upon any of its property or assets (other than (x) customary provisions in contracts (including without limitation leases
and licenses of Intellectual Property) restricting the assignment thereof or, in the case of any lease or license, the sublease
or sublicense or other disposition of the applicable leased or licensed property, (y) restrictions or conditions imposed by any
agreement governing secured Permitted Indebtedness permitted under Section 9.01(g), to the extent that such restrictions or conditions
apply only to the property or assets securing such Indebtedness and (z) restrictions in agreements related to any Asset Sale to
the extent such Asset Sale would be a permitted Asset Sale under this Agreement), or (ii) the ability of any Subsidiary of Parent
to pay dividends or other distributions with respect to any shares of its capital stock or to make or repay loans or advances
to the Borrower or any other Obligor or the ability of Parent or any Subsidiary of Parent to guarantee
Indebtedness of the Borrower or any other Obligor to the extent such guarantee is required by Section 8.12.

 

    -20-

     

    

 

“Sanction”
means any international economic sanction administered or enforced by the United States Government (including, without limitation,
OFAC), the United Nations Security Council, the European Union or its Member States, Her Majesty’s Treasury or other similar
relevant sanctions authority.

 

“Sanofi”
means Sanofi US Services Inc., a Delaware corporation.

 

“Sanofi
Documents” means, collectively, (i) that certain Asset Purchase Agreement dated June 27, 2016 by and between Sanofi
and Borrower (as amended, supplemented and/or modified and together with all exhibits thereto, collectively, the “S/I
APA”), (ii) that certain Master Services Agreement dated July 15, 2016 by and between Sanofi and Borrower (as amended,
supplemented and/or modified and together with all exhibits thereto, collectively, the “S/I MSA”), (iii) that
certain Special Warranty Deed with Reverter dated July 15, 2016 with Sanofi as the Grantor and Borrower as the Grantee, as filed
with the Official Records of the Pima County, Arizona Recorder’s Office on July 15, 2016 (as amended, supplemented and/or
modified and together with all exhibits thereto, collectively, the “S/I Warranty and Reverter Deed”), (iv)
the Deed of Trust and Assignment of Rents Agreement dated as of July 15, 2016 between Borrower, as Trustor, Sanofi, as Beneficiary
and Patricia E. Nolan as Trustee relating to, among other items set forth therein, the Mortgaged Premises and the building thereon
(as amended, supplemented and/or modified and including all exhibits thereto including, but not limited to, Exhibit A thereto,
collectively, the “S/I Deed of Trust”), (v) the Transition Services Agreement dated July 15 2016 between Borrower
and Sanofi (as amended, supplemented and/or modified and including all exhibits thereto), and (vi) all other agreements, instruments,
certificates, documents and related items between, among and/or involving Sanofi and/or its affiliates and Borrower including
those set forth in Section 4.2 of the S/I APA.

 

“SEC”
means the U.S. Securities and Exchange Commission.

 

“Secured
Parties” means the Lenders, the Administrative Agent, each other Indemnified Party, any other holder of any Obligation,
and any of their respective permitted transferees or assigns.

 

“Securities
Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

 

“Security
Agreement” means the Security Agreement, dated as of the Closing Date and substantially in the form of Exhibit H hereto,
among the grantors party thereto and the Administrative Agent, granting a security interest in the Obligors’ personal property
in favor of the Administrative Agent.

 

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“Security Documents” means,
collectively, the Security Agreement, each Short-Form IP Security Agreement, each Real Property Security Document and each
other security document,control agreement
or financing statement required or recommended to perfect Liens in favor of the Secured Parties for purposes of securing the
Obligations.

 

“Securities
Account” has the meaning given to it in Section 8-501(a) of the NY UCC.

 

“Series
C Holders” means any holder of the Series C Preferred Stock.

 

“Series
C Preferred Stock” means Parent’s Series C Convertible Redeemable Preferred Stock.

 

“Series
C Preferred Subordination Agreement” means that certain Series C Preferred Subordination Agreement, dated as of the
Closing Date, among the Series C Holders, Parent and the Administrative Agent, pursuant to which the Series C Holders subordinate
all rights to cash payments owed such Series C Holders by Parent due to such Series C Holders’ ownership of Series C Preferred
Stock until the Obligations (other than Warrant Obligations) have been paid in full.

 

“Short-Form
IP Security Agreements” means short-form patent, trademark or copyright (as the case may be) security agreements, substantially
in the forms of Exhibits J, K and L to this Agreement, as applicable, entered into by one (1) or more Obligors in favor of the
Administrative Agent for the benefit of each Secured Party.

 

“S/I
Deed of Trust” has the meaning set forth in the definition of Sanofi Documents.

 

“S/I
MSA” has the meaning set forth in the definition of Sanofi Documents.

 

“S/I
Warranty and Reverter Deed” has the meaning set forth in the definition of Sanofi Documents.

 

“Solvent”
means, with respect to any Person at any time, that (i) the present fair saleable value of the property of such Person is
greater than the total amount of liabilities (including contingent liabilities) of such Person, (ii) the present fair saleable
value of the property of such Person is not less than the amount that will be required to pay the probable liability of such Person
on its debts as they become absolute and matured and (iii) such Person has not incurred and does not intend to, and does not believe
that it will, incur debts or liabilities beyond such Person’s ability to pay such debts and liabilities as they mature.

 

“Subordinated
Notes” means those certain subordinated promissory notes issued pursuant to that certain Securities Purchase Agreement,
dated August 27, 2019, among Parent and the investors party thereto and in an aggregate principal amount not to exceed $2,500,000.

 

“Subsidiary”
means, with respect to any Person (the “parent”) at any date, any corporation, limited liability company,
partnership, association or other entity the accounts of which would be consolidated with those of the parent in the parent’s
consolidated financial statements if such financial statements were prepared in accordance with GAAP as of such date, as well
as any other corporation, limited liability company, partnership, association or other entity of which securities or other ownership
interests representing more than fifty percent (50%) of
the equity or more than fifty percent (50%) of the ordinary voting power or, in the case of a partnership, more than fifty percent
(50%) of the general partnership interests are, as of such date, directly or indirectly, owned, controlled or held.

 

    -22-

     

    

 

“Subsidiary
Guarantors” means each Subsidiary of Parent identified under the caption “SUBSIDIARY GUARANTORS” on the
signature pages hereto and each Subsidiary of Parent that becomes, or is required to become, a “Subsidiary Guarantor”
after the date hereof pursuant to Section 8.12(a).

 

“Taxes”
means all present or future taxes, levies, imposts, duties, deductions, withholdings (including backup withholding), assessments,
fees or other charges imposed by any Governmental Authority, including any interest, additions to tax or penalties applicable
thereto.

 

“Technical
Information” means all trade secrets and other proprietary or confidential information, public information, non-proprietary
know-how, any information of a scientific, technical, or business nature in any form or medium, standards and specifications,
conceptions, ideas, innovations, discoveries, Invention disclosures, all documented research, developmental, demonstration or
engineering work and all other information, data, plans, specifications, reports, summaries, experimental data, manuals, models,
samples, know-how, technical information, systems, methodologies, computer programs, information technology and any other information.

 

“Term
Loan” means, collectively, the Closing Date Term Loan and First Amendment Term Loan.

 

“Title
IV Plan” means an employee benefit plan (as defined in Section 3(3) of ERISA) other than a Multiemployer Plan (i) that
is or within the last six years was maintained or sponsored by any Obligor or any ERISA Affiliate thereof or to which any Obligor
or any ERISA Affiliate thereof within the last six years made, or was obligated to make, contributions, and (ii) that is or was
subject to Section 412 of the Code, Section 302 of ERISA or Title IV of ERISA.

 

“Trademarks”
means all trade names, trademarks and service marks, logos, trademark and service mark registrations, and applications for
trademark and service mark registrations, including all renewals of trademark and service mark registrations, all rights to recover
for all past, present and future infringements thereof and all rights to sue therefor, and all rights corresponding thereto throughout
the world, together, in each case, with the product lines and goodwill of the business connected with the use thereof.

 

“Transactions”
means the negotiation, preparation, execution, delivery and performance by each Obligor of this Agreement and the other Loan
Documents to which such Obligor is (or is intended to be) a party, the making of the Term Loan hereunder, and all other transactions
contemplated pursuant to this Agreement and the other Loan Documents.

 

“Tucson
Real Estate” has the meaning set forth in Section 8.23.

 

“UCC”
means, with respect to any applicable jurisdictions, the Uniform Commercial Code as in effect in such jurisdiction, as may
be modified from time to time.

 

    -23-

     

    

 

“United
States” or “U.S.” means the United States of America, its fifty (50) states and the District of Columbia.

 

“U.S.
Person” means a “United States person” within the meaning of Section 7701(a)(30) of the Code.

 

“U.S.
Tax Compliance Certificate” has the meaning set forth in Section 5.03(f)(ii)(B).

 

“Warrant”
means the warrant to be delivered to the Administrative Agent pursuant to Section 6.01 on the Closing Date, that, among other
things, grants the holder thereof the right to purchase the number of shares of common stock of Parent as indicated on the Warrant
Shares table on Schedule 1, as the Warrant may be amended, replaced or otherwise modified pursuant to the terms thereof.

 

“Warrant
Obligations” means all Obligations of Parent arising out of, under or in connection with the Warrant.

 

“Withholding
Agent” means the Borrower, any Obligor and the Administrative Agent.

 

“Write-Down
and Conversion Powers” means, with respect to any EEA Resolution Authority, the write-down and conversion powers of
such EEA Resolution Authority from time to time under the Bail-In Legislation for the applicable EEA Member Country, which write-down
and conversion powers are described in the EU Bail-In Legislation Schedule.

 

Section
1.02. Accounting Terms and Principles. Unless otherwise specified, all accounting terms used in each Loan Document shall be
interpreted, and all accounting determinations and computations thereunder (including under Section 10 and any definitions used
in such calculations) shall be made, in accordance with GAAP; provided that, for purposes of determining compliance with
any covenant contained in Section 9 or the existence of any Default or Event of Default under Section 11, in determining whether
any lease is required to be accounted for as a capital lease or an operating lease, such determination shall be made based on
GAAP as in effect on the date of this Agreement. Unless otherwise expressly provided, all financial covenants and defined financial
terms shall be computed on a consolidated basis for Parent and its Subsidiaries, in each case, without duplication.

 

Section
1.03. Interpretation. For all purposes of this Agreement, except as otherwise expressly provided herein or unless the context
otherwise requires,

 

(a)
the terms defined in this Agreement include the plural as well as the singular and vice versa;

 

(b)
words importing gender include all genders;

 

(c)
any reference to a Section, Annex, Schedule or Exhibit refers to a Section of, or Annex, Schedule or Exhibit to, this Agreement;

 

    -24-

     

    

 

 

(d) any
reference to “this Agreement” refers to this Agreement, including all Annexes, Schedules and Exhibits hereto, and the
words herein, hereof, hereto and hereunder and words of similar import refer to this Agreement and its Annexes, Schedules and Exhibits
as a whole and not to any particular Section, Annex, Schedule, Exhibit or any other subdivision;

 

(e) references
to days, months and years refer to calendar days, months and years, respectively;

 

(f) all
references herein to “include” or “including” shall be deemed to be followed by the words “without
limitation”;

 

(g) the
word “from” when used in connection with a period of time means “from and including” and the word “until”
means “to but not including”;

 

(h) where
any provision in this Agreement or any other Loan Document refers to an action to be taken by any Person, or an action which such
Person is prohibited from taking, such provision shall be applicable whether such action is taken directly or indirectly;

 

(i) references
to any Lien granted or created hereunder or pursuant to any other Loan Document securing any Obligations shall be deemed to be
a Lien for the benefit of the Secured Parties;

 

(j) the
words “asset” and “property” shall be construed to have the same meaning and effect and to refer broadly
to any and all assets and properties, whether tangible or intangible, real or personal, including cash, securities, rights under
contractual obligations and permits and any right or interest in any such assets or property except where otherwise noted herein;

 

(k) accounting
terms not specifically defined herein (other than “property” and “asset”) shall be construed in accordance
with GAAP;

 

(l) the
word “will” shall be construed to have the same meaning as the word “shall”; and

 

(m) a
Schedule shall refer to those Schedules provided as of the date hereof and as may be further updated in accordance with the terms
of this Agreement (which updates, for the avoidance of doubt, shall be acceptable to the Administrative Agent unless such updates
reflect an item that is otherwise prohibited under this Agreement on the date thereof).

 

Unless otherwise expressly provided herein,
references to organizational documents, agreements (including the Loan Documents) and other contractual instruments shall be deemed
to include all subsequent amendments, restatements, extensions, supplements and other modifications thereto permitted by the Loan
Documents.

 

    -25-

     

    

 

Section 1.04. Changes to GAAP. Subject
to Section 1.02, if, after the date hereof, any change occurs in GAAP or in the application thereof and such change would cause
any amount required to be determined for the purposes of the covenants to be maintained or calculated pursuant to Section 8, 9
or 10 to be materially different than the amount that would be determined prior to such change, then:

 

(a) Parent
will provide a detailed notice of such change (an “Accounting Change Notice”) to the Administrative Agent within
thirty (30) days after a Responsible Officer’s learning that such change would so impact the covenants and calculations hereunder;

 

(b) either
Parent or the Administrative Agent may indicate within ninety (90) days following the date of the Accounting Change Notice that
they wish to revise the method of calculating such covenants or amend any such amount, in which case the parties will in good faith
attempt to agree upon a revised method for calculating the financial covenants;

 

(c) until
Parent and the Administrative Agent have reached agreement on such revisions, such covenants or amounts as set forth herein shall
remain in effect and will be determined without giving effect to such change;

 

(d) if
no party elects to revise the method of calculating the covenants or amounts, then the covenants or amounts will not be revised
and will be determined in accordance with GAAP without giving effect to such change; and

 

(e) any
Event of Default arising as a result of such change which is cured by operation of this Section 1.04 shall be deemed to be of no
effect ab initio.

 

Section
2. The Commitments and the Closing Date Term Loan and First Amendment Term Loan.

 

Section 2.01. Closing Date Term
Loan and First Amendment Term Loan.

 

(a) Closing
Date Term Loan.

 

(i) Subject
to the terms and conditions of this Agreement and relying on the representations and warranties set forth herein, each Lender,
severally and not jointly, agrees to provide its share of the Closing Date Term Loan to Borrower on the Closing Date in Dollars
in a principal amount equal to such Lender’s Closing Date Commitment. No Lender shall have an obligation to make a Closing
Date Term Loan in excess of such Lender’s Closing Date Commitment.

 

(ii) Borrower
may make one borrowing under the Closing Date Commitments which shall be on the Closing Date. Subject to Section 3.03, all amounts
owed hereunder with respect to the Closing Date Term Loan shall be paid in full no later than the Maturity Date. Each Lender’s
Closing Date Commitment shall terminate immediately and without further action on the Closing Date after giving effect to the funding
of such Lender’s Closing Date Commitment on such date.

 

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(iii) Upon
satisfaction or waiver of the conditions precedent set forth in this Agreement, the Lenders shall make the proceeds of the Closing
Date Term Loan available to Borrower on the Closing Date.

 

(b) First
Amendment Term Loan.

 

(i) Subject
to the terms and conditions of this Agreement and relying on the representations and warranties set forth herein, each Lender,
severally and not jointly, agrees to provide its share of the First Amendment Term Loan to Borrower on the First Amendment Date
in Dollars in a principal amount equal to such Lender’s First Amendment Date Commitment. No Lender shall have an obligation
to make a First Amendment Term Loan in excess of such Lender’s First Amendment Date Commitment.

 

(ii) Borrower
may make one borrowing under the First Amendment Date Commitment which shall be on the First Amendment Date. Subject to Section
3.03, all amounts owed hereunder with respect to the First Amendment Term Loan shall be paid in full no later than the First Amendment
Maturity Date. Each Lender’s First Amendment Date Commitment shall terminate immediately and without further action on the
First Amendment Date after giving effect to the funding of such Lender’s First Amendment Date Commitment on such date.

 

(iii) Upon
satisfaction or waiver of the conditions precedent set forth in Section 13 of the First Amendment, the Lenders shall make the proceeds
of the First Amendment Term Loan available to Borrower on the First Amendment Date.

 

(c) No
amounts paid or prepaid with respect to the Term Loan may be reborrowed. Any term or provision hereof (or of any other Loan Document)
to the contrary notwithstanding, the Term Loan made to the Borrower will be denominated solely in Dollars and will be repayable
solely in Dollars and no other currency.

 

Section 2.02. Notes. If requested
by any Lender, the Term Loan of such Lender shall be evidenced by one or more Notes. If so requested, the Borrower shall prepare,
execute and deliver to the Administrative Agent such promissory note(s) payable to the Lenders (or, if requested by the Lenders,
to the Lenders and their registered permitted assigns) substantially in the form attached hereto as Exhibit A.

 

Section 2.03. Use of Proceeds. The
Borrower shall use the proceeds of the Term Loan solely (a) for general corporate purposes, including, without limitation, business
development and licensing purposes, (b) to refinance the Pay-Off Indebtedness and (c) to pay the fees, costs and expenses associated
with the Transactions. Borrower shall not use the proceeds of the Term Loan for any purpose in violation of the Sanofi Documents.

 

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Section 2.04. Proportionate Shares.
The Term Loan shall be made, and all participations purchased, by the Lenders simultaneously and proportionately to their respective
Proportionate Shares, it being understood that no Lender shall be responsible for any default by any other Lender in such other
Lender’s obligation to make a Term Loan hereunder or purchase a participation required hereby nor shall the Commitment of
any Lender be increased or decreased as a result of a default by any other Lender in such Lender’s obligation to make a Term
Loan requested hereunder or purchase a participation required hereby.

 

Section
3 Payments of Principal and Interest.

 

Section 3.01. Repayments and Prepayments
Generally; Application. (a) There will be no scheduled amortization payments of principal on the Term Loan prior to the second
(2nd) anniversary of the Closing Date.

 

(b) Commencing
with the Payment Date occurring immediately after the second (2nd) anniversary of the Closing Date and on each Payment Date occurring
thereafter, the Borrower shall make a scheduled amortization payment of principal on the Closing Date Term Loan in an amount equal
to 1.0% of the aggregate principal amount of the Closing Date Term Loan borrowed on the Closing Date.

 

(c) Any
term or provision hereof to the contrary notwithstanding, (i) on the Maturity Date the Borrower shall repay the entire remaining
outstanding balance of the Closing Date Term Loan in full in cash and (ii) on the First Amendment Maturity Date the Borrower shall
repay the entire remaining outstanding balance of the First Amendment Term Loan (including accrued and uncapitalized PIK Interest
on the First Amendment Term Loan) in full in cash.

 

(d) The
Borrower agrees that the Term Loan, and any fees or interest accrued or accruing thereon, shall be repaid and prepaid solely in
Dollars pursuant to the terms of this Section 3. Except as otherwise provided in this Agreement, each payment (including each repayment
and prepayment) by the Borrower will be deemed to be made ratably in accordance with the Lenders’ Proportionate Share.

 

Section 3.02. Interest.

 

(a) Interest
Generally. The outstanding principal amount of the Closing Date Term Loan, as well as the amount of all other outstanding Obligations
(other than the First Amendment Term Loan), shall accrue interest at the Interest Rate. The outstanding principal amount of the
First Amendment Term Loan shall accrue interest at the First Amendment Term Loan Interest Rate.

 

(b) Default
Interest. Notwithstanding the foregoing, upon the occurrence and during the continuance of any Event of Default, the Applicable
Margin or the First Amendment Term Loan Interest Rate, as applicable, shall increase automatically by four percent (4%) per annum
(the Interest Rate or the First Amendment Term Loan Interest Rate, as applicable, as increased pursuant to this Section 3.02(b),
being the “Default Rate”). If any Obligation is not paid when due under any applicable Loan Document (after
giving effect to any applicable grace period), the amount thereof shall accrue interest at the Default Rate.

 

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(c) Interest
Payment Dates. Accrued interest on the Closing Date Term Loan shall be payable in cash and in arrears on each Payment Date
with respect to the most recently completed Interest Period, and upon the payment or prepayment of the Closing Date Term Loan (on
the principal amount being so paid or prepaid). PIK Interest on the First Amendment Term Loan shall be capitalized and added to
the outstanding principal amount of the First Amendment Term Loan on each Payment Date with respect to the most recently completed
Interest Period. Interest payable at the Default Rate with respect to the Closing Date Term Loan and the First Amendment Term Loan
shall also be payable from time to time in cash on demand by the Administrative Agent.

 

(d) Maximum
Rate. Notwithstanding any other provision of this Agreement, in no event will any interest or rates referred to herein exceed
the maximum interest rate permitted by applicable law. If such maximum interest rate would be exceeded by the terms hereof, the
rates of interest payable hereunder will be reduced to the extent necessary so that such rates (together with any fees or other
amounts which are construed by a court of competent jurisdiction to be interest or in the nature of interest) equal the maximum
interest rate permitted by applicable law, and any overpayment of interest received by the Lenders before such rates are so construed
will be applied, forthwith after determination of such overpayment, to pay all then outstanding interest, and thereafter to pay
outstanding principal.

 

Section 3.03. Prepayments; Prepayment
Premium.

 

(a) Optional Prepayments.
(i) Subject to prior written notice pursuant to clause (ii) below, the Borrower shall have the right to optionally prepay, in
whole or in part, the outstanding principal amount of the Term Loan on any Business Day (a “Prepayment Date”)
for an aggregate amount equal to the sum of (x) the aggregate principal amount of the Term Loan being prepaid, (y) the
applicable Prepayment Premium on the principal amount of the Closing Date Term Loan being prepaid and (z) any accrued but unpaid
interest on the principal amount of the Term Loan being prepaid (such aggregate amount, the “Prepayment Price”).

 

(ii) A notice of optional prepayment shall
be effective only if received by the Administrative Agent not later than 2:00 p.m. (Eastern time) on a date not less than one (1)
Business Day prior to the proposed Prepayment Date. Each notice of optional prepayment shall specify the Prepayment Price and the
principal amount to be prepaid, as well as the Prepayment Date.

 

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(b) Mandatory
Prepayments. (i) Subject to the proviso below, and except to the extent such Net Cash Proceeds have been used to prepay
the obligations under the Parent Credit Agreement, upon the occurrence of any Casualty Event, the Borrower shall make a
mandatory prepayment of the Term Loan in an aggregate amount equal to the sum of (x) one hundred percent (100%) of the Net
Cash Proceeds received by the Borrower or any other Obligor as a result of such Casualty Event up to the principal amount
outstanding of the Term Loan, and (y) any accrued but unpaid interest on such principal amount of the Term Loan being
prepaid; provided that so long as no Default or Event of Default has occurred and is continuing at the time the
Borrower or any (b) Obligor shall have received such Net Cash Proceeds, if, within five (5) Business Days following the
occurrence of any such Casualty Event, a Responsible Officer of the Borrower may deliver to the Administrative Agent a notice
(each, a “Casualty Event Reinvestment Notice”) to the effect that the Borrower or applicable Obligor
intends to apply the Net Cash Proceeds from such Casualty Event to acquire, replace or rebuild the property subject to such
Casualty Event or to the cost of purchase or construction of other assets useful in the business of Parent or its
Subsidiaries, then such Net Cash Proceeds of such Casualty Event may be applied for such purpose in lieu of such mandatory
prepayment, provided further that, in the event that Net Cash Proceeds have not been so applied within one hundred
eighty (180) days following the occurrence of such Casualty Event, the Borrower shall make a mandatory prepayment of the Term
Loan in an aggregate amount equal to the sum of (A) one hundred percent (100%) of the unused balance of such Net Cash
Proceeds received by the Borrower or any other Obligor as a result of such Casualty Event up to the principal amount
outstanding of the Term Loan, and (B) any accrued but unpaid interest (including, but not limited to, any accrued but
uncapitalized PIK Interest on the First Amendment Term Loan) on such principal amount of the Term Loan being prepaid, provided,
further, that to the extent that the property subject to the Casualty Event is Collateral, then any such acquired,
replaced, repaired, purchased or constructed property shall be Collateral in which the Administrative Agent, for the benefit
of the Lenders, has been granted a security interest under the Security Documents.

 

(ii) Upon the disposition and sale of the
Tucson Real Estate in accordance with Section 8.23, the Borrower shall make a mandatory prepayment of the Term Loan in an aggregate
amount equal to the lesser of (i) the entire outstanding Obligations as of such date and (ii) one hundred percent (100%) of the
Net Cash Proceeds received by the Borrower in connection with such sale, to be applied pursuant to Section 3.03(d) below.

 

(c) Prepayment
Premium. Without limiting the foregoing, whenever the Prepayment Premium is in effect and payable pursuant to the terms hereof,
such premium shall be payable on all payments and prepayments of the Closing Date Term Loan, whether as a result of clause (a)
above in this Section 3.03, acceleration or otherwise (but excluding any prepayment pursuant to clause (b) above).

 

(d) Application.
Proceeds of any prepayment made pursuant to clauses (a) or (b) above shall be applied in the following order of priority, with
proceeds being applied to a succeeding level of priority only if amounts owing pursuant to the immediately preceding level of priority
have been paid in full in cash:

 

(i) first,
to the payment of any unpaid costs or expenses referred to in Section 14.03 then due and owing;

 

(ii) second,
to the payment of any accrued and unpaid interest (including, but not limited to, accrued but uncapitalized PIK Interest on the
First Amendment Term Loan) and any fees then due and owing;

 

(iii) third,
to the payment of unpaid principal of the First Amendment Term Loan;

 

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(iv) fourth,
to the payment of the Exit Fee then due and payable;

 

(v) fifth,
to the payment of unpaid principal of the Closing Date Term Loan;

 

(vi) sixth,
to the payment of any Prepayment Premium then due and payable; and

 

(vii) seventh,
to the Borrower or such other Persons as may lawfully be entitled to or directed by the Borrower to receive the remainder.

 

Section 3.04. Fees.

 

(a) Closing
Fee. On the Closing Date, the Borrower shall pay to the Administrative Agent out of the proceeds of the Term Loan a non-refundable
fee in the amount equal to two percent (2%) of the principal amount of the Term Loan advanced by the Lenders on such date (the
“Closing Fee”). On the First Amendment Date, the Borrower shall pay to the Administrative Agent out of the proceeds
of the First Amendment Term Loan a non-refundable fee in the amount equal to two percent (2%) of the principal amount of the First
Amendment Term Loan advanced by the Lenders on such date (the “First Amendment Closing Fee”). Payment of the
Closing Fee and the First Amendment Closing Fee shall be in addition to such fees, costs and expenses due and payable pursuant
to Section 14.03. Upon receipt of payment from the Borrower, the Administrative Agent will promptly thereafter distribute like
funds relating to any such payment to the Lenders pro rata on the basis of each Lender’s Proportionate Share.

 

(b) Exit
Fee. On the First Amendment Maturity Date or on the earlier repayment of the First Amendment Term Loans in full (provided that
such earlier repayment occurs after December 31, 2019), the Borrower agrees to pay to the Administrative Agent for distribution
to the Lenders a fee equal to five percent (5%) of the aggregate outstanding principal amount of the First Amendment Term Loan
(the “Exit Fee”).

 

Section 4. Payments, Etc.

 

Section 4.01. Payments.

 

(a) Payments
Generally. Each payment of principal, interest and other amounts to be made by the Obligors under this Agreement or any other
Loan Document shall be made (i) in Dollars, in immediately available funds, without deduction, set off or counterclaim, to the
deposit account of the Administrative Agent (for the benefit of the Lenders) designated by the Administrative Agent by notice to
the Borrower and (ii) not later than 2:00 p.m. (Eastern time) on the date on which such payment is due (each such payment made
after such time on such due date shall be deemed to have been made on the next succeeding Business Day).

 

(b) Application
of Payments. All such payments referenced in clause (a) above shall be applied as set forth in Section 3.03(d) above.

 

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(c) Non-Business
Days. If the due date of any payment under this Agreement (whether in respect of principal, interest, fees, costs or otherwise)
would otherwise fall on a day that is not a Business Day, such date shall be extended to the next succeeding Business Day, and,
in the case of any payment accruing interest, interest thereon shall be payable for the period of such extension.

 

Section 4.02. Computations. All
computations of interest and fees hereunder shall be computed on the basis of a year of three hundred and sixty (360) days and
actual days elapsed during the period for which payable.

 

Section 4.03. Set-Off.

 

(a) Set-Off
Generally. Upon the occurrence and during the continuance of any Event of Default, the Administrative Agent, each of the Lenders
and each of their Affiliates is hereby authorized at any time and from time to time, to the fullest extent permitted by law, to
set off and apply any and all deposits (general or special, time or demand, provisional or final) at any time held and other indebtedness
at any time owing by any Lender and any of their Affiliates to or for the credit or the account of any Obligor against any and
all of the Obligations, whether or not such Person shall have made any demand and although such obligations may be unmatured. Any
Person exercising rights of set off hereunder agrees promptly to notify the Borrower after any such set-off and application, provided
that the failure to give such notice shall not affect the validity of such set-off and application. The rights of the Lenders
and each of their Affiliates under this Section 4.03 are in addition to other rights and remedies (including other rights of set-off)
that such Persons may have.

 

(b) Exercise
of Rights Not Required. Nothing contained in Section 4.03(a) shall require the Administrative Agent, any Lender or any of their
Affiliates to exercise any such right or shall affect the right of such Persons to exercise, and retain the benefits of exercising,
any such right with respect to any other indebtedness or obligation of any Obligor.

 

Section 5. Yield Protection, Etc.

 

Section 5.01. Additional Costs.

 

(a) Change
in Law Generally. If, on or after the date hereof, the adoption of any Law, or any change in any Law, or any change in the
interpretation or administration thereof by any court or other Governmental Authority charged with the interpretation or administration
thereof, or compliance by any Lender (or its lending office) with any request or directive (whether or not having the force of
law) of any such Governmental Authority, shall impose, modify or deem applicable any reserve (including any such requirement imposed
by the Board of Governors of the Federal Reserve System), special deposit, contribution, insurance assessment or similar requirement,
in each case that becomes effective after the date hereof, against assets of, deposits with or for the account of, or credit extended
by, a Lender (or its lending office) or shall impose on a Lender (or its lending office) any other condition affecting the Term
Loan or the Commitment, and the result of any of the foregoing is to increase the cost to such Lender of making or maintaining
the Term Loan, or to reduce the amount of any sum received or receivable by such Lender under this Agreement or any other Loan
Document, or subject any Lender to any Taxes on its Term Loan, Commitment or other obligations, or its deposits, reserves, other
liabilities or capital (if any) attributable thereto by an amount reasonably deemed by such Lender in good faith to be material
(other than (i) Indemnified Taxes, (ii) Taxes described in clauses (ii) through (iv) of the definition of “Excluded Taxes”
and (iii) Connection Income Taxes), then the Borrower shall pay to such Lender on demand such additional amount or amounts as
will compensate such Lender for such increased cost or reduction.

 

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(b) Change
in Capital Requirements. If a Lender shall have determined that, on or after the date hereof, the adoption of any applicable
Law regarding capital adequacy, or any change therein, or any change in the interpretation or administration thereof by any Governmental
Authority charged with the interpretation or administration thereof, or any request or directive regarding capital adequacy (whether
or not having the force of law) of any such Governmental Authority, in each case that becomes effective after the date hereof,
has or would have the effect of reducing the rate of return on capital of a Lender (or its parent) as a consequence of a Lender’s
obligations hereunder or the Term Loan to a level below that which a Lender (or its parent) could have achieved but for such adoption,
change, request or directive by an amount reasonably deemed by it to be material, then the Borrower shall pay to such Lender on
demand such additional amount or amounts as will compensate such Lender (or its parent) for such reduction.

 

(c) Notification
by Lender. Each Lender will promptly notify the Borrower of any event of which it has knowledge, occurring after the date hereof,
which will entitle such Lender to compensation pursuant to this Section 5.01. Before giving any such notice pursuant to this Section
5.01(c) such Lender shall designate a different lending office if such designation (x) will, in the reasonable judgment of such
Lender, avoid the need for, or reduce the amount of, such compensation and (y) will not, in the reasonable judgment of such Lender,
be materially disadvantageous to such Lender. A certificate of such Lender claiming compensation under this Section 5.01, setting
forth in reasonable detail the additional amount or amounts to be paid to it hereunder, shall be conclusive and binding on the
Borrower in the absence of manifest error.

 

(d) Notwithstanding
anything herein to the contrary, (x) the Dodd-Frank Wall Street Reform and Consumer Protection Act and all requests, rules, guidelines
or directives thereunder or issued in connection therewith and (y) all requests, rules, guidelines or directives promulgated by
the Bank for International Settlements, the Basel Committee on Banking Supervision (or any successor or similar authority) or the
United States or foreign regulatory authorities, in each case pursuant to Basel III, shall in each case be deemed to constitute
a change in Law for all purposes of this Section 5.01, regardless of the date enacted, adopted or issued.

 

Section 5.02.
Illegality. Notwithstanding any other provision of this Agreement, in the event that on or after the date hereof the
adoption of or any change in any applicable Law or in the interpretation or application thereof by any competent Governmental
Authority shall make it unlawful for a Lender or its lending office to make or maintain the Term Loan by such Lender (and, in
the opinion of such Lender, the designation of a different lending office would either not avoid such unlawfulness or would
be disadvantageous to such Lender), then such Lender shall promptly notify the Borrower thereof, following which (i) such
Lender’s Commitment shall be suspended until such time as such Lender may again make and maintain the Term Loan
hereunder and (ii) if such Law shall so mandate, the Term Loan shall be prepaid by the Borrower on or before such date as
shall be mandated by such Law in an amount equal to the aggregate principal amount of the Term Loan outstanding on the date
of such prepayment plus any accrued but unpaid interest thereon.

 

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Section 5.03. Taxes. For purposes
of this Section 5.03, the term “applicable Law” includes FATCA.

 

(a) Payments
Free of Taxes. Any and all payments by or on account of any Obligation shall be made without deduction or withholding for any
Taxes, except as required by any applicable Law. If any applicable Law (as determined in the good faith discretion of an applicable
Withholding Agent) requires the deduction or withholding of any Tax from any such payment by a Withholding Agent, then the applicable
Withholding Agent shall be entitled to make such deduction or withholding and shall timely pay the full amount deducted or withheld
to the relevant Governmental Authority in accordance with applicable Law and, if such Tax is an Indemnified Tax, then the sum payable
by such Obligor shall be increased as necessary so that after such deduction or withholding has been made (including such deductions
and withholdings applicable to additional sums payable under this Section 5.03) the applicable Recipient receives an amount equal
to the sum it would have received had no such deduction or withholding been made.

 

(b) Payment
of Other Taxes by the Borrower. The Borrower shall timely pay to the relevant Governmental Authority in accordance with applicable
Law, or at the option of the Administrative Agent, timely reimburse it for the payment of, Other Taxes.

 

(c) Evidence
of Payments. As soon as reasonably practicable after any payment of Taxes by the Borrower to a Governmental Authority pursuant
to this Section 5.03, the Borrower shall deliver to the Administrative Agent the original or a certified copy of a receipt issued
by such Governmental Authority evidencing such payment, a copy of the return reporting such payment or other evidence of such payment
reasonably satisfactory to the Administrative Agent.

 

(d) Indemnification
by the Borrower. The Borrower shall reimburse and indemnify each Recipient, within ten (10) days after demand therefor, for
the full amount of any Indemnified Taxes (including Indemnified Taxes imposed or asserted on or attributable to amounts payable
under this Section 5.03) payable or paid by such Recipient or required to be withheld or deducted from a payment to such Recipient
and any reasonable expenses arising therefrom or with respect thereto, whether or not such Indemnified Taxes were correctly or
legally imposed or asserted by the relevant Governmental Authority. A certificate as to the amount of such payment or liability
delivered to the Borrower by a Lender (with a copy to the Administrative Agent), or by the Administrative Agent on its own behalf
or on behalf of a Lender, shall be conclusive absent manifest error.

 

(e) Indemnification
by the Lender. Each Lender shall severally indemnify the Administrative Agent, within 10 days after demand therefor, for
(i) any Indemnified Taxes attributable to such Lender (but only to the extent that the Borrower has not already indemnified
the Administrative Agent for such Indemnified Taxes and without limiting the obligation of the Borrower to do so), and (ii)
any Taxes attributable to such Lender, in each case, that are payable or paid by the Administrative Agent in connection with
any Loan Document, and any reasonable expenses arising therefrom or with respect thereto, whether or not such Taxes were
correctly or legally imposed or asserted by the relevant Governmental Authority. A certificate as to the amount of such
payment or liability delivered to any Lender by the Administrative Agent shall be conclusive absent manifest error. Each
Lender hereby authorizes the Administrative Agent to set off and apply any and all amounts at any time owing to such Lender
under any Loan Document or otherwise payable by the Administrative Agent to such Lender from any other source against any
amount due to the Administrative Agent under this paragraph (e).

 

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(f) Status
of Lenders. (i) Any Lender that is entitled to an exemption from or reduction of withholding Tax with respect to payments made
under any Loan Document shall deliver to the Borrower and the Administrative Agent, at the time or times prescribed by applicable
Law or reasonably requested by the Borrower or the Administrative Agent, such properly completed and executed documentation reasonably
requested by the Borrower or the Administrative Agent as will permit such payments to be made without withholding or at a reduced
rate of withholding. In addition, any Lender shall deliver such other documentation prescribed by Law or reasonably requested by
the Borrower or the Administrative Agent as will enable the Borrower or the Administrative Agent to determine whether or not such
Lender is subject to backup withholding or information reporting requirements. Notwithstanding anything to the contrary in the
preceding two sentences, the completion, execution and submission of such documentation (other than such documentation set forth
in Section 5.03(f)(ii)(A), (ii)(B), and (ii)(D)) shall not be required if in such Lender’s reasonable judgment such completion,
execution or submission would subject such Lender to any material unreimbursed cost or expense or would materially prejudice the
legal or commercial position of such Lender.

 

(ii) Without
limiting the generality of the foregoing:

 

(A) any
Lender (or, if the Lender is a disregarded entity for U.S. federal income tax purposes, the Person treated as the owner of the
assets of such Lender for U.S. federal income Tax purposes) that is a U.S. Person shall deliver to the Borrower and the Administrative
Agent on or prior to the date on which such Lender becomes a Lender under this Agreement (and from time to time thereafter upon
the reasonable request of the Borrower or the Administrative Agent), executed copies of IRS Form W-9 (or successor form) certifying
that such Lender is exempt from U.S. federal backup withholding Tax;

 

(B) any
Foreign Lender shall, to the extent it is legally entitled to do so, deliver to the Borrower and the Administrative Agent (in such
number of copies as shall be requested by the recipient) on or prior to the date on which such Foreign Lender becomes a Lender
under this Agreement (and from time to time thereafter upon the reasonable request of the Borrower and the Administrative Agent),
whichever of the following is applicable:

 

(1) in
the case of a Foreign Lender claiming the benefits of an income tax treaty to which the United States is a party (x) with
respect to payments of interest under any Loan Document, executed copies of IRS Form W-8BEN or IRS Form W-8BEN-E as
applicable (or successor forms) establishing an exemption from, or reduction of, U.S. federal withholding Tax pursuant to the
“interest” article of such tax treaty and (y) with respect to any other applicable payments under any Loan
Document, IRS Form W-8BEN or IRS Form W-8BEN-E as applicable (or successor forms) establishing an exemption from, or
reduction of, U.S. federal withholding Tax pursuant to the “business profits” or “other income”
article of such tax treaty;

 

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(2) executed
copies of IRS Form W-8ECI (or successor form);

 

(3) in
the case of a Foreign Lender claiming the benefits of the exemption for portfolio interest under Section 881(c) of the Code,
(x) a certificate substantially in the form of Exhibit D-1 to the effect that such Foreign Lender is not a “bank”
within the meaning of Section 881(c)(3)(A) of the Code, a “10 percent shareholder” of the applicable the Borrower
within the meaning of Section 881(c)(3)(B) of the Code, or a “controlled foreign corporation” described in
Section 881(c)(3)(C) of the Code (a “U.S. Tax Compliance Certificate”) and (y) executed copies of IRS Form
W-8BEN or IRS Form W-8BEN-E as applicable (or successor forms); or

 

(4) to
the extent a Foreign Lender is not the beneficial owner, executed copies of IRS Form W-8IMY (or successor form), accompanied by
IRS Form W-8ECI (or successor form), IRS Form W-8BEN (or successor form), IRS Form W-8BEN-E, a U.S. Tax Compliance Certificate,
substantially in the form of Exhibit D-2 or D-3, IRS Form W-9 (or successor form), and/or other certification documents from each
beneficial owner, as applicable; provided that if the Foreign Lender is a partnership and one (1) or more direct or indirect
partners of such Foreign Lender are claiming the portfolio interest exemption, such Foreign Lender may provide a U.S. Tax Compliance
Certificate substantially in the form of Exhibit D-4 on behalf of each such direct and indirect partner.

 

(C) any
Foreign Lender shall, to the extent it is legally entitled to do so, deliver to the Borrower and the Administrative Agent (in such
number of copies as shall be requested by the recipient) on or prior to the date on which such Foreign Lender becomes a Lender
under this Agreement (and from time to time thereafter at the time or times prescribed by applicable Law or upon the reasonable
request of the Borrower or the Administrative Agent), executed copies of any other form prescribed by applicable Law as a basis
for claiming exemption from or a reduction in U.S. federal withholding Tax, duly completed, together with such supplementary documentation
as may be prescribed by applicable Law to permit the Borrower or the Administrative Agent to determine the withholding or deduction
required to be made; and

 

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(D) if
a payment made to a Lender under any Loan Document would be subject to U.S. federal withholding Tax imposed by FATCA if such
Lender were to fail to comply with the applicable reporting requirements of FATCA (including those contained in Section
1471(b) or 1472(b) of the Code, as applicable), such Lender shall deliver to the Borrower and the Administrative Agent at the
time or times prescribed by Law and at such time or times as reasonably requested by the Borrower or the Administrative Agent
such documentation prescribed by applicable Law (including as prescribed by Section 1471(b)(3)(C)(i) of the Code) and such
additional documentation reasonably requested by the Borrower or the Administrative Agent as may be necessary for the
Borrower and the Administrative Agent to comply with their obligations under FATCA and to determine that such Lender has
complied with such Lender’s obligations under FATCA or to determine the amount to deduct and withhold from such
payment. Solely for purposes of this clause (D), “FATCA” shall include any amendments made to FATCA after the
date of this Agreement.

 

Each Lender agrees that if any form or
certification it previously delivered expires or becomes obsolete or inaccurate in any respect, it shall update such form or certification
or promptly notify the Borrower and the Administrative Agent in writing of its legal inability to do so.

 

(g) Treatment
of Certain Tax Benefits. If any party to this Agreement determines, in its sole discretion exercised in good faith, that it
has received a refund of any Taxes as to which it has been indemnified pursuant to this Section 5.03 (including by the payment
of additional amounts pursuant to this Section 5.03), it shall pay to the indemnifying party an amount equal to such refund (but
only to the extent of indemnity payments made under this Section 5.03 with respect to the Taxes giving rise to such refund), net
of all out-of-pocket expenses (including Taxes) of such indemnified party and without interest (other than any interest paid by
the relevant Governmental Authority with respect to such refund). Such indemnifying party, upon the request of such indemnified
party, shall repay to such indemnified party the amount paid over pursuant to this paragraph (plus any penalties, interest or other
charges imposed by the relevant Governmental Authority) in the event that such indemnified party is required to repay such refund
to such Governmental Authority. Notwithstanding anything to the contrary in this Section 5.03(g), in no event will the indemnified
party be required to pay any amount to an indemnifying party pursuant to this Section 5.03(g) the payment of which would place
the indemnified party in a less favorable net after-Tax position than the indemnified party would have been in if the Tax subject
to indemnification and giving rise to such refund had not been deducted, withheld or otherwise imposed and the indemnification
payments or additional amounts with respect to such Tax had never been paid. This Section 5.03(g) shall not be construed to require
any indemnified party to make available its Tax returns (or any other information relating to its Taxes that it deems confidential)
to the indemnifying party or any other Person.

 

(h) Designation
of a Different Lending Office. If the Borrower is required to pay any Indemnified Taxes or additional amounts to any Lender
or to any Governmental Authority for the account of any Lender pursuant to Section 5.01 or this Section 5.03, then such Lender
shall (at the request of the Borrower) use commercially reasonable efforts to designate a different lending office for funding
or booking its Term Loan hereunder or to assign and delegate its rights and obligations hereunder to another of its offices, branches
or Affiliates if, in the sole reasonable judgment of such Lender, such designation or assignment and delegation would (i) eliminate
or reduce amounts payable pursuant to Section 5.01 or this Section 5.03, as the case may be, in the future, (ii) not subject such
Lender to any unreimbursed cost or expense and (iii) not otherwise be disadvantageous to such Lender. The Borrower hereby agrees
to pay all reasonable costs and expenses incurred by any Lender in connection with any such designation or assignment and delegation.

 

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(i) Survival.
Each party’s obligations under this Section 5 shall survive the resignation or replacement of the Administrative Agent or
any assignment of rights by, or the replacement of, a Lender, the termination of the Commitments and the repayment, satisfaction
or discharge of all Obligations under any Loan Document.

 

Section 5.04. Delay in Requests.
Failure or delay on the part of any Lender to demand compensation pursuant to this Section 5 shall not constitute a waiver of such
Lender’s right to demand such compensation; provided that the Borrower shall not be required to compensate a Lender
pursuant to this Section for any increased costs incurred or reductions suffered more than six-months prior to the date that such
Lender notifies the Borrower of the change in Law giving rise to such increased costs or reductions, and of such Lender’s
intention to claim compensation therefor (except that, if the change in Law giving rise to such increased costs or reductions is
retroactive, then the sixth-month period referred to above shall be extended to include the period of retroactive effect thereof).

 

Section 6. Conditions Precedent.

 

Section 6.01. Conditions to the Closing
Date. The obligation of each Lender to make the Term Loan shall be subject to the execution and delivery of this Agreement
by the parties hereto and the prior or concurrent satisfaction (or waiver thereof by the Administrative Agent) of each of the conditions
precedent set forth below in this Section 6.01.

 

(a) Secretary’s
Certificate, Etc. The Administrative Agent shall have received from each Obligor (i) a copy of a good standing certificate,
dated a date reasonably close to the Closing Date, for each such Person and (ii) a certificate, dated as of the Closing Date, duly
executed and delivered by such Person’s Secretary or Assistant Secretary, managing member, general partner or equivalent,
as to:

 

(i) resolutions
of each such Person’s Board then in full force and effect authorizing the execution, delivery and performance of each Loan
Document to be executed by such Person and the Transactions;

 

(ii) the
incumbency and signatures of those of its officers, managing member, general partner or equivalent authorized to act with respect
to each Loan Document to be executed by such Person; and

 

(iii) the
full force and validity of each Organic Document of such Person and copies thereof.

 

(b) Closing
Date Certificate. The Administrative Agent shall have received a certificate, dated as of the Closing Date and duly executed
and delivered by a Responsible Officer of the Borrower, which certificate shall be in the form attached hereto as Exhibit M, stating
that (i) both immediately before and after giving effect to the Borrowing of the Term Loan, (x) the representations and warranties
set forth in each Loan Document shall, in each case, be true and correct in all material respects (or, in the case of any such
representation or warranty already qualified by materiality, in all respects) and (y) no Default shall have then occurred and
be continuing, or would result from the making of the Term Loan being advanced on the Closing Date and (ii) all of the conditions
set forth in Section 6.01 have been satisfied or waived by the Administrative Agent.

 

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(c) Solvency,
Etc. The Administrative Agent shall have received a solvency certificate duly executed and delivered by the chief financial
or accounting Responsible Officer of the Borrower, dated as of the Closing Date, in form and substance reasonably satisfactory
to the Administrative Agent.

 

(d) Financial
Information, Etc. The Administrative Agent shall have received:

 

(i) audited
consolidated financial statements of Parent and its Subsidiaries for the fiscal year ended December 31, 2017; provided that
Parent’s filing of an Annual Report on Form 10-K with the SEC with respect thereto shall be deemed to satisfy the requirements
of this Section; and

 

(ii) unaudited
consolidated balance sheets of Parent and its Subsidiaries for each fiscal quarter ended after December 31, 2017, together with
the related consolidated statement of operations for such fiscal quarter; provided that Parent’s filing of a Quarterly
Report on Form 10-Q with the SEC with respect to each such quarter shall be deemed to satisfy the requirements of this Section.

 

(e) Compliance
Certificate. The Administrative Agent shall have received an initial Compliance Certificate, prepared on a pro forma basis
as of the Closing Date demonstrating compliance with the covenants set forth in Section 10, duly executed (and with all schedules
thereto duly completed) and delivered by a Responsible Officer of the Borrower.

 

(f) Opinions
of Counsel. The Administrative Agent shall have received one (1) or more opinions, dated the Closing Date and addressed to
the Administrative Agent and the Lenders, from Gracin & Marlow, LLP, independent legal counsel to the Borrower and the other
Obligors, Parsons Behle & Latimer, Nevada legal counsel to the Borrower and the other Obligors, and Ballard Spahr, LLP, real
estate counsel to the Borrower and the other Obligors, each in form and substance reasonably acceptable to the Administrative Agent.

 

(g) Delivery
of Notes. Each Lender that has requested a Note shall have received a Note for its Term Loan, duly executed and delivered by
a Responsible Officer of the Borrower.

 

(h) Security
Documents. The Administrative Agent shall have received executed counterparts of each Security Document, dated as of Closing
Date, duly executed and delivered by each Obligor, together with:

 

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(i) subject
to Section 8.17, delivery of all certificates (in the case of Equity Interests that are securities (as defined in the NY
UCC)) evidencing the issued and outstanding capital securities owned by each Obligor that are required to be pledged under
the Security Agreement, which certificates in each case shall be accompanied by undated instruments of transfer duly executed
in blank or, in the case of Equity Interests that are uncertificated securities (as defined in the NY UCC), confirmation and
evidence reasonably satisfactory to the Administrative Agent that the security interest required to be pledged therein under
the Security Agreement has been transferred to and perfected by the Administrative Agent in accordance with Articles 8 and 9
of the NY UCC and all laws otherwise applicable to the perfection of the pledge of such Equity Interests;

 

(ii) financing
statements naming each Obligor as a debtor and the Administrative Agent as the secured party (for the benefit of all Secured Parties)
or other similar instruments or documents, in each case suitable for filing, to be filed under the Uniform Commercial Code (or
equivalent law) of all jurisdictions as may be necessary to perfect the Liens of the Administrative Agent, for the benefit of the
Lenders, pursuant to the Security Agreement and the Mortgage (with respect to fixtures);

 

(iii) UCC-1
(or equivalent) Lien searches reasonably satisfactory in scope and substance to the Administrative Agent covering each Obligor
and its properties;

 

(iv) UCC-3
termination statements, or equivalent, as may be necessary to release all Liens and other rights of any Person in any collateral
described in the Security Agreement previously granted by any Person; and

 

(v) all
Short-Form IP Security Agreements required to be provided under the Security Agreement, each dated as of the Closing Date, duly
executed and delivered by each Obligor that is required to do so under the Security Agreement.

 

(i) Material
Adverse Change. No Material Adverse Change shall have occurred since December 31, 2017.

 

(j) Fees
and Expenses, Etc. Each of the Administrative Agent and each Lender shall have received, for its own account, the fees, costs
and expenses due and payable to it on the Closing Date pursuant to Sections 3.04(a) and 14.03, including all reasonable closing
costs and fees and all unpaid reasonable expenses of the Administrative Agent and the Lenders incurred in connection with the Transactions
(including the Administrative Agent’s and the Lenders’ reasonable and documented legal fees and expenses).

 

(k) Collateral
Questionnaire. The Administrative Agent shall have received a fully completed Collateral Questionnaire, dated as of the
Closing Date, duly executed and delivered by a Responsible Officer of each Obligor. 

 

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(l) Warrant. The
Administrative Agent shall have received the executed Warrant, dated as of the Closing Date.

 

(m) Insurance.
The Administrative Agent shall have received (x) certificates and endorsements of insurance evidencing the existence of all insurance
required to be maintained by the Obligors and their respective Subsidiaries pursuant to Section 8.05 and the designation of the
Administrative Agent as the Borrower’s loss payee or additional insured, as applicable and (y) a fully paid title insurance
policy, with endorsements and in an amount acceptable to the Administrative Agent, issued by a nationally recognized title insurer
acceptable to Administrative Agent, insuring the Mortgage to be a valid first and subsisting Lien on the real property described
therein, free and clear (or insured over) of all defects (including, but not limited to, mechanics’ and materialmen’s
Liens) and encumbrances, excepting only Permitted Liens, and providing for such other affirmative assurances as may be reasonably
requested by the Administrative Agent.

 

(n) Pay-Off
Letters. The Administrative Agent shall have received executed Pay-Off Letters terminating and cancelling the Pay-Off Indebtedness
in full, in form and substance reasonably acceptable to it.

 

(o) Due
Diligence. The Administrative Agent and the Lenders shall have received and be satisfied with all due diligence (including
without limitation historical financial statements, projections, technical, operational, legal, intellectual property, commercial
market forecasts, clinical and regulatory assessments, supply chain, securities, labor, Tax, litigation, environmental, reimbursement
and regulatory authority matters) in their sole discretion.

 

(p) Parent
Loan Documents. The Administrative Agent shall have received executed copies of all Parent Loan Documents.

 

(q) Bridge
Notes. The Administrative Agent shall have received executed amendments to each Bridge Note existing on the Closing Date, in
form and substance satisfactory to the Administrative Agent in order to subordinate all obligations thereunder to the Obligations,
subject to permitted payments under Section 9.07.

 

(r) Series
C Preferred Subordination Agreement. The Administrative Agent shall have received an executed copy of the Series C Preferred
Subordination Agreement.

 

Section
7. Representations and Warranties.

 

The Borrower and each other Obligor hereby
jointly and severally represents and warrants to the Administrative Agent and each Lender that:

 

Section 7.01. Power and
Authority. Each Obligor (i) is duly organized and validly existing under the laws of its jurisdiction of organization,
(ii) has all requisite corporate or other organizational power, and has all Governmental Approvals necessary to own its
assets and carry on its business as now being, or as proposed to be conducted, except to the extent that failure to have the
same would not reasonably be expected to have a Material Adverse Effect, (iii) is qualified to do business and is in good
standing in all jurisdictions in which the nature of the business conducted by it makes such qualification necessary and
where failure so to qualify (either individually or in the aggregate) would reasonably be expected to have a Material Adverse
Effect, and (iv) has full power, authority and legal right to enter into and perform its obligations under each of the Loan
Documents to which it is a party and, in the case of the Borrower, to borrow the Term Loan hereunder.

 

Section 7.02. Authorization; Enforceability.
The Transactions are within each Obligor’s corporate or other organizational powers and have been duly authorized by all
necessary corporate or other organizational action and, if required, by all necessary equity holder action on the part of such
Obligor. This Agreement has been duly executed and delivered by each Obligor and constitutes, and each of the other Loan Documents
to which it is a party when executed and delivered by such Obligor will constitute, a legal, valid and binding obligation of such
Obligor, enforceable against such Obligor in accordance with its terms, except as such enforceability may be limited by (i) bankruptcy,
insolvency, reorganization, moratorium or similar laws of general applicability affecting the enforcement of creditors’ rights
and (ii) the application of general principles of equity (regardless of whether such enforceability is considered in a proceeding
in equity or at law).

 

Section 7.03. Governmental and
Other Approvals; No Conflicts. None of the Transactions (i) requires any Governmental Approval of, registration or filing
with, or any other action by, any Governmental Authority or any other Person, except for (x) such as have been obtained or
made and are in full force and effect and (y) filings and recordings in respect of perfecting or recording the Liens created
pursuant to the Security Documents, (ii) will violate any applicable Law or any Organic Document of any Obligor or any of its
Subsidiaries or any order of any Governmental Authority, other than any such violations that, individually or in the
aggregate, would not reasonably be expected to have a Material Adverse Effect, (iii) will result in a default under (x) any
Material Agreement or (y) any Contract creating or evidencing any Material Indebtedness or

(iv) will
result in the creation or imposition of any Lien (other than Permitted Liens) on any asset of any Obligor.

 

Section 7.04. Financial Statements;
Material Adverse Change.

 

(a) Financial
Statements. The Borrower has heretofore furnished to the Administrative Agent and the Lenders certain consolidated financial
statements as provided for in Section 6.01(d). Such financial statements, and all other financial statements delivered by the
Borrower pursuant hereto (whether prior to the Closing Date or otherwise), present fairly, in all material respects, the consolidated
financial position and results of operations and cash flows of Parent and its Subsidiaries as of such dates and for such periods
in accordance with GAAP, subject to year-end audit adjustments and the absence of footnotes in the case of the statements of the
type described in Section 8.01(a) and (b). Neither Parent nor any of its Subsidiaries has any material contingent liabilities
or unusual forward or long-term commitments not disclosed in the aforementioned financial statements.

 

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(b) No
Material Adverse Change. Since December 31, 2017, there has been no Material Adverse Change.

 

Section 7.05. Properties.

 

(a) Property
Generally. Each Obligor has good title to, or valid leasehold interests in, all its real and tangible personal property material
to its business subject only to Permitted Liens and except as would not reasonably be expected to materially interfere with its
ability to conduct its business as currently conducted or to utilize such properties for their intended purposes.

 

(b) Intellectual
Property.

 

(i) Schedule
7.05(b) lists all United States and foreign registrations of and applications for Patents, Trademarks, Copyrights, Industrial Designs
and Technical Information that are Obligor Intellectual Property, including the applicable jurisdiction, registration or application
number and date, as applicable thereto, and a designation as to whether it is licensed or owned by Obligor.

 

(ii) Obligors
own or possess all legal and beneficial rights, title and interest in and to Obligor Intellectual Property designated on Schedule
7.05(b) as being owned by that Obligor and has the right to use the Obligor Intellectual Property licensed to that Obligor, in
each case with good and marketable title, free and clear of any Liens or Claims of any kind whatsoever other than Permitted Liens.

 

(iii) To
Obligors’ knowledge, Obligors’ current use of its Material Intellectual Property does not violate any license or infringe
any valid and enforceable Intellectual Property right of another.

 

(iv) Other
than with respect to the Material Agreements, or as permitted by Section 9.09, the Obligors have not transferred ownership of Material
Intellectual Property, in whole or in part, to any Person who is not an Obligor.

 

(v) Other
than as set forth on Schedule 7.05(b) and to Obligors’ knowledge, Obligors have not received any written communications,
nor is there any pending or threatened action in writing, suit, proceeding or claim in writing by another, alleging that any of
the Obligors has violated, infringed, diluted or misappropriated or, by conducting its business as currently conducted or as proposed
to be conducted does or would violate, infringe, dilute or misappropriate any Intellectual Property of another, and to Obligors’
knowledge, there is no basis for such an allegation.

 

(vi) To
the Obligors’ knowledge, there is no pending or threatened action in writing, suit, proceeding or claim in writing by
another (a) challenging Obligors’ rights in or to any Intellectual Property owned by, or licensed to, Obligors, and
Obligors have no knowledge of any facts which could form a reasonable basis for any such action, suit, proceeding or claim;
or (b) challenging the validity, enforceability or scope of any Intellectual Property owned by, or licensed to, Obligors, and
Obligors have no knowledge of any facts which could form a reasonable basis for any such action, suit, proceeding or
claim.

 

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(vii) Obligors
have taken reasonable precautions to protect the secrecy, confidentiality and value of the Obligor Intellectual Property, including
without limitation, by requiring that all relevant current and former employees, contractors and consultants of Obligors execute
written confidentiality agreements.

 

(viii) Obligors
have complied with the material terms of each Material Agreement pursuant to which Intellectual Property has been licensed to Obligors
(which material terms shall include, but not be limited to, pricing and duration of the agreement), and all such Material Agreements
are in full force and effect, and Obligors have no knowledge of any facts which could form a reasonable basis for any claims of
breach or default under such Material Agreements.

 

(ix) Other
than those permitted by Section 9.09, or as set forth on Schedule 7.05(b), (a) there are no outstanding options, licenses, agreements,
claims, encumbrances or shared ownership interests of any kind relating to the Intellectual Property owned by, or licensed to,
Obligors and (b) nor are Obligors bound by, or a party to, any options, licenses or agreements of any kind with respect to any
Intellectual Property of another other than standard rights of customers and contract research organizations.

 

(x) Obligors
have no knowledge of any prior art that would reasonably be expected to render any claim of any United States Patent within the
Material Intellectual Property invalid that has not been disclosed to the United States Patent and Trademark Office.

 

(xi) All
maintenance fees, annuities, and the like due or payable on the Patents have been timely paid or the failure to so pay was the
result of an intentional decision by the applicable Obligor, which would not reasonably be expected to result in a Material Adverse
Change.

 

(xii) To
Obligors’ knowledge, there are no material defects in any of the Patents that constitute the Material Intellectual Property
and no such Patents have ever been finally adjudicated to be invalid, unpatentable or unenforceable for any reason in any administrative,
arbitration, judicial or other proceeding.

 

(xiii) Obligors
have not received any notice asserting that the Patents constituting Material Intellectual Property are invalid, unpatentable or
unenforceable and, to Obligors’ knowledge, neither they nor any current or prior owner of such Patents or their respective
agents or representatives, have engaged in any conduct, or omitted to perform any necessary act, the result of which would invalidate
or render unpatentable or unenforceable any such Patent.

 

(xiv) To
Obligors’ knowledge, other than as set forth in Schedule 7.05(b), Obligors are not obligated to make any payment by way
of royalties, fees or otherwise to any owner or licensee of, or other claimant to, any Obligor Intellectual Property, with
respect to the use thereof or in connection with the conduct of its business or otherwise.

 

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(xv) To
Obligors’ knowledge, no employee of Obligors is or has been in violation of any term of any employment contract, patent disclosure
agreement, invention assignment agreement, non-competition agreement, non-solicitation agreement, nondisclosure agreement or any
restrictive covenant to or with a former employer where the basis of such violation relates to such employee’s employment
with Obligors.

 

(xvi) Each
employee and each consultant retained to generate intellectual property for any Obligor has waived all moral rights and assigned
to Obligors all intellectual property rights he or she owns that are related to Obligors’ business as now conducted and as
presently proposed to be conducted.

 

(c) Mortgaged
Premises. Borrower has good right, full power, and authority to convey, transfer, and mortgage the Mortgaged Premises to Administrative
Agent for the uses and purposes set forth in this Agreement and the Mortgage; and the Obligors will warrant and forever defend
the title to the Mortgaged Premises subject to the Permitted Liens against all claims and demands whatsoever. The Obligors warrant
that a copy of each lease or sublease of the Mortgaged Premises and any amendments thereto have heretofore been delivered to Administrative
Agent and such copies are true and correct and in all respects what they purport to be and have not been amended or modified in
any respect. Each such lease is in full force and effect and is not in material default and all material conditions to the effectiveness
or continued effectiveness of each lease required to be satisfied by the date hereof have been satisfied. Each Obligor and each
Subsidiary or Affiliate that conducts any business or leases any portion of the Mortgaged Premises is and will at all relevant
times be duly qualified and licensed and in good standing under the laws of such jurisdiction in which the Mortgaged Premises are
located to the extent that the ownership, lease or operation of properties or the conduct of its business requires such qualification
or license.

 

Section 7.06. No Actions or Proceedings.

 

(a) Litigation.
There is no litigation, investigation or proceeding pending or, to the Borrower’s knowledge, threatened in writing with respect
to any Obligor or any of its Subsidiaries by or before any Governmental Authority or arbitrator that (i) either individually or
in the aggregate would reasonably be expected to have a Material Adverse Effect, except as specified in Schedule 7.06(a), or (ii)
involves this Agreement, any other Loan Document or the Transactions.

 

(b) Environmental
Matters. The operations and property of such Obligor and each of its Subsidiaries comply with all applicable Environmental
Laws, except to the extent the failure to so comply (either individually or in the aggregate) would not reasonably be expected
to have a Material Adverse Effect. There have been no conditions, occurrences or release of Hazardous Materials which would reasonably
be expected to form the basis of any environmental liability claim under applicable Environmental Laws with respect to Parent’s
and its Subsidiaries’ businesses, operations or properties.

 

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(c) Labor
Matters. There are no labor disputes against Parent or any Subsidiary or, to the Borrower’s knowledge, threatened in
writing against Parent or any Subsidiary, and no unfair labor practice complaint is pending against Parent or any Subsidiary or,
to the knowledge of the Borrower, threatened in writing against any of them before any Governmental Authority, in each case which
would reasonably be expected to result in a Material Adverse Effect. There is no material strike or work stoppage in existence
or threatened in writing against Parent or any Subsidiary. Except as set forth on Schedule 7.06(c), the Borrower is not party to
any collective bargaining agreements or contracts, no union representation exists at any facilities of Parent or any of its Subsidiaries
and, to the knowledge of the Borrower, no union organizing activities with respect to its business are taking place.

 

Section 7.07. Compliance with Laws and
Agreements. Each of the Obligors is in compliance with all Laws, regulations and orders of any Governmental Authority applicable
to it or its property and all indentures, agreements and other instruments binding upon it or its property, except where the failure
to do so, individually or in the aggregate, would not reasonably be expected to result in a Material Adverse Effect. To the extent
applicable, Obligors and their Subsidiaries are in compliance with 21 CFR §§ 210-211 and 21 CFR §§ 600-610.

 

Section 7.08. Taxes. Except as set
forth on Schedule 7.08, each of the Obligors has timely filed or caused to be filed all income and other material tax returns and
reports required to have been filed and has paid or caused to be paid all material Taxes, fees, assessments and governmental charges
or levies required to have been paid by it, except Taxes, fees, assessments and governmental charges or levies that are being contested
in good faith by appropriate proceedings and for which such Obligor has set aside on its books adequate reserves with respect thereto
in accordance with GAAP.

 

Section 7.09. Full Disclosure. None
of the reports, financial statements, certificates or other information furnished by or on behalf of the Obligors to any Lender
in connection with the negotiation of this Agreement and the other Loan Documents or delivered hereunder or thereunder (as modified
or supplemented by other information so furnished) contains any misstatement of material fact or omits to state any material fact
necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided
that, with respect to projected financial information, the Borrower represents only that such information was prepared in good
faith based upon assumptions believed to be reasonable at the time (it being understood by the Administrative Agent and the Lenders
that such projected financial information is not to be viewed as fact, and that no assurances can be given that any particular
projections will be realized and that actual results during the period or periods covered by any such projections may differ from
the projected results and such differences may be material).

 

Section 7.10. Investment Company
and Margin Stock Regulation.

 

(a) Investment
Company Act. Neither Parent nor any of its Subsidiaries is an “investment company” as defined in, or subject to
regulation under, the Investment Company Act of 1940.

 

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(b) Margin
Stock. Neither Parent nor any of its Subsidiaries is engaged principally, or as one of its important activities, in the
business of extending credit for the purpose, whether immediate, incidental or ultimate, of buying or carrying Margin Stock,
and no part of the proceeds of the Term Loan will be used to buy or carry any Margin Stock in violation of Regulation T, U or
X.

 

Section 7.11. Solvency. Parent and
its Subsidiaries, on a consolidated basis, are and, immediately after giving effect to the Borrowing and the use of proceeds thereof,
will be Solvent.

 

Section 7.12 Equity Holders; Subsidiaries;
Equity Investments. (a) Set forth on Schedule 7.12(a) is a complete and correct list of all holders of the Equity Interests
of Parent, setting forth the name of each such holder, the series or class of Equity Interest of Parent held by such holder and
the fully diluted percentage ownership of Parent held beneficially by such holder. Parent is not in material breach of any Material
Agreement between Parent and any of the holders of Equity Interests of Parent, and Parent has fulfilled all of its material obligations
under any such Material Agreements. Parent has received all consents of the holders of the Equity Interests of Parent necessary
for the Transactions, including any such consent pursuant to any right of first refusal, right of first offer, tag-along right,
co-sale right or similar rights, and, as of the date hereof, all of the holders of Equity Interests of Parent with any such rights
have declined to exercise such rights in connection with the Transactions.

 

(b) Set
forth on Schedule 7.12(b) is a complete and correct list of all Subsidiaries of Parent. Each such Subsidiary is duly organized
and validly existing under the jurisdiction of its organization shown in said Schedule 7.12(b), and the percentage ownership by
Parent or other entity of each such Subsidiary is as shown in said Schedule 7.12(b).

 

(c) Set
forth on Schedule 7.12(c) is a complete and correct list of all other Equity Interests held by each Obligor in any Person that
is not a direct or indirect Subsidiary of Parent. Such Schedule 7.12(c) also sets forth in reasonable detail, the type of Equity
Interest held by each such Obligor in such Person and the fully-diluted percentage ownership held beneficially by such Obligor
in such Person.

 

Section 7.13. Indebtedness and Liens.
Set forth on Schedule 7.13(a) is a complete and correct list of all Indebtedness of the Borrower and each other Obligor outstanding
as of the date hereof that will remain outstanding immediately after the making of the Term Loan and the application of the proceeds
therefrom on the Closing Date. Set forth on Schedule 7.13(b) is a complete and correct list of all Indebtedness outstanding on
the date hereof that will be repaid and satisfied in full on the Closing Date with proceeds of the Term Loan made on such date.
Schedule 7.13(c) is a complete and correct list of all Liens granted by the Borrower and other Obligors with respect to their respective
property which are outstanding as of the Closing Date after giving effect to the Transactions (other than the Liens granted pursuant
to the Loan Documents).

 

Section 7.14.
Material Agreements. Set forth on Schedule 7.14 is a complete and correct list of the Material Agreements that will
remain outstanding as of the Closing Date after giving effect to the Transactions. No Obligor is in material default under
any Material Agreement and the Borrower has no knowledge of any material default by any counterparty to any such Material
Agreement or Contract. Except as otherwise disclosed on Schedule 7.14, all Material Agreements that include a grant of rights
under any Material Intellectual Property to an Obligor are in full force and effect without material modification from the
form in which the same were disclosed to the Administrative Agent.

 

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Section 7.15. Restrictive Agreements.
Except as set forth in Schedule 7.15, no Obligor is subject to any Restrictive Agreement as of the Closing Date after giving effect
to the Transactions, except those permitted under Section 9.11.

 

Section 7.16. Real Property. Except
as set forth in Schedule 7.16, no Obligor owns or leases (as tenant thereof) any real property.

 

Section 7.17. Pension Matters. Schedule
7.17 sets forth a complete and correct list of, and that separately identifies, (i) all Title IV Plans and (ii) all Multiemployer
Plans. Except for those that would not reasonably be expected to, in the aggregate, have a Material Adverse Effect or result under
ERISA or Code Section 430(k) in a Lien under on the assets or property of any Obligor or any of its Subsidiaries, no ERISA Event
has occurred in connection with which obligations and liabilities (contingent or otherwise) remain outstanding or is reasonably
expected to occur.

 

Section 7.18. Collateral; Security Interest.
Each Security Document is effective to create in favor of the Administrative Agent (for the benefit of the Secured Parties) a legal,
valid and enforceable security interest, as security for the Obligations, in the Collateral subject to such Security Document and
each such security interest is perfected on a first-priority basis (subject only to Permitted Priority Liens).

 

Section 7.19. Regulatory Approvals.
(a) Each Obligor and each of its Subsidiaries holds either directly or through licensees and agents, all Regulatory Approvals,
licenses, permits and similar governmental authorizations of a Governmental Authority necessary or required for each Obligor and
its Subsidiaries to conduct their operations and business substantially in the manner currently conducted.

 

(b) Set
forth on Schedule 7.19(b) is a complete and accurate list as of the date hereof of all Regulatory Approvals relating to the Obligors
and the conduct of their business. All such Regulatory Approvals are (i) legally and beneficially owned exclusively by the Obligors,
free and clear of all Liens other than Permitted Liens, (ii) validly registered and on file with the applicable Governmental Authority,
in material compliance with all registration, filing and maintenance requirements (including any fee requirements) thereof, and
(iii) in good standing, valid and enforceable with the applicable Governmental Authority in all material respects.

 

(c) (i)
All material regulatory filings required by any Regulatory Authority have been made, and all such filings are complete and correct
in all material respects and have complied in all material respects with all applicable laws and regulations and (ii) each Obligor
has disclosed to the Administrative Agent all such material regulatory filings and all material communications between representatives
of each Obligor and any Regulatory Authority.

 

(d) Each
Obligor and each of its agents are in compliance in all material respects with all applicable Laws (including all Regulatory Approvals)
of all applicable Governmental Authorities, including the FDA and all other Regulatory Authorities. Each Obligor has and maintains
in full force and effect all the necessary and requisite Regulatory Approvals. Each Obligor is in compliance in all material respects
with all applicable registration and listing requirements set forth in the FD&C Act or equivalent regulation of each other
Governmental Authority having jurisdiction over such Person. Each Obligor adheres in all material respects to all applicable regulations
of all Regulatory Authorities.

 

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(e) Except
as set forth on Schedule 7.19(e), no Obligor has received from any Regulatory Authority any notice of adverse findings, including
any FDA Form 483 inspectional observations, notices of violations, Warning Letters, criminal proceeding notices under Section 305
of the FD&C Act, or any other similar communication from any Regulatory Authority.

 

(f) Neither
any Obligor nor any officer, employee or agent thereof, has made an untrue statement of a material fact or fraudulent statements
to the FDA or any other Regulatory Authority, failed to disclose a material fact required to be disclosed to the FDA or any other
Regulatory Authority, or committed an act, made a statement, or failed to make a statement that, at the time such disclosure was
made (or was not made), would reasonably be expected to provide a basis for the FDA or any other Regulatory Authority to invoke
its policy respecting Fraud, Untrue Statements of Material Facts, Bribery and Illegal Gratuities, set forth in 56 Fed. Reg. 46191
(September 10, 1991) or any similar policy.

 

(g) The
clinical, preclinical, safety and other studies and tests conducted by or on behalf of or sponsored by each Obligor (if any) were
(and if still pending, are) being conducted materially in accordance with standard medical and scientific research procedures.
Each Obligor has operated within, and currently is in compliance in all material respects with, all applicable laws, and Regulatory
Approvals, as well as the rules and regulations of the FDA and each other Regulatory Authority.

 

(h) No
Obligor is in the business of Product Commercialization and Development Activities, as well as any clinical or preclinical trials
with respect thereto.

 

Section 7.20. Transactions with Affiliates.
Except as set forth on Schedule 7.20, no Obligor nor any of its Subsidiaries has entered into, renewed, extended or been a party
to, any transaction (including the purchase, sale, lease, transfer or exchange of property or assets of any kind or the rendering
of services of any kind) with any Affiliate during the three-year period prior to the Closing Date.

 

Section 7.21.
OFAC. Except as set forth on Schedule 7.21, no Obligor nor any of its Subsidiaries, nor, to the knowledge of the
Borrower, any of their respective directors, officers, or employees nor, to the knowledge of the Borrower, any agents or
other Persons acting on behalf of any of the foregoing (i) is currently the target of any Sanctions, (ii) is located,
organized or residing in any Designated Jurisdiction, (iii) is or has been engaged in any transaction with, or for the
benefit of, any Person who is now or was then the target of Sanctions or who is located, organized or residing in any
Designated Jurisdiction or (iv) is or has ever been in violation in any material respect of or subject to an investigation
relating to Sanctions. No Term Loan, nor the proceeds from the Term Loan, has been or will be used, directly or indirectly,
to lend, contribute or provide to, or has been or will be otherwise made available to fund, any activity or business in any
Designated Jurisdiction or to fund any activity or business of any Person, to the Borrower’s knowledge, located,
organized or residing in any Designated Jurisdiction or who is the subject of any Sanctions, or in any other manner that will
result in any violation in any material respect by Parent or any of its Subsidiaries of Sanctions.

 

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Section 7.22. Anti-Corruption. No
Obligor nor any of its Subsidiaries, nor, to the knowledge of the Borrower, any of their respective directors, officers or employees
nor, to the knowledge of the Borrower, any agents or other Persons acting on behalf of any of the foregoing, directly or indirectly,
has (i) violated or is in violation, in any material respect, of any applicable anti-corruption Law, or (ii) made, offered to make,
promised to make or authorized the payment or giving of, directly or indirectly, any Prohibited Payment. To the Borrower’s
knowledge, no Obligor has been subject to any investigation by any Governmental Authority with regard to any actual or alleged
Prohibited Payment.

 

Section 7.23. Deposit and Disbursement
Accounts. Schedule 7.23 contains a list of all banks and other financial institutions at which any Obligor or any of its Subsidiaries
maintains Deposit Accounts, Securities Accounts and Commodity Accounts, and Schedule 7.23 sets forth the name, address and telephone
number of each such bank or financial institution, the name in which such account is held, the type of such account and the complete
account number therefor.

 

Section 7.24. Royalty and Other Payments.
Except as set forth on Schedule 7.24, no Obligor, nor any of its Subsidiaries, is obligated to pay any royalty, milestone payment,
deferred payment or any other contingent payment.

 

Section 8. Affirmative Covenants.

 

Each Obligor covenants and agrees with
the Lenders that, until the Commitments have expired or been terminated and all Obligations (other than Warrant Obligations and
contingent obligations as to which no claims have been asserted) have been indefeasibly paid in full in cash; provided,
however, that the covenants set forth in Sections 8.21, 8.22 and 8.23 shall terminate upon payment in full of the unpaid
principal amount owed under the First Amendment Term Loan and all accrued and unpaid PIK Interest on the First Amendment Term Loan:

 

Section 8.01. Financial Statements and
Other Information. The Borrower will furnish to the Administrative Agent:

 

(a) as
soon as available and in any event within 30 days after the end of each month (including the last month of each fiscal quarter),
a consolidated balance sheet for Parent and its Subsidiaries as of the end of such month, and the related consolidated statements
of income and cash flows for such month and the portion of the fiscal year through the end of such month, all in reasonable detail
and setting forth in comparative form the figures for the corresponding period in the preceding fiscal year, together with a certificate
of a Responsible Officer of the Borrower stating that such financial statements fairly present in all material respects the financial
condition of Parent and its Subsidiaries as at such date and the results of operations of Parent and its Subsidiaries for the
period ended on such date and have been prepared in accordance with GAAP, subject to changes resulting from normal, year-end audit
adjustments and except for the absence of notes;

 

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(b) as
soon as available and in any event within five (5) Business Days following the date on which Parent files or is required to file
a Quarterly Report on Form 10-Q with the SEC, a consolidated balance sheet for Parent and its Subsidiaries as of the end of such
quarter, and the related consolidated statements of income and cash flows for such quarter and the portion of the fiscal year through
the end of such quarter, all in reasonable detail and setting forth in comparative form the figures for the corresponding period
in the preceding fiscal year, together with a certificate of a Responsible Officer of the Borrower stating that such financial
statements fairly present in all material respects the financial condition of Parent and its Subsidiaries as at such date and the
results of operations of Parent and its Subsidiaries for the period ended on such date and have been prepared in accordance with
GAAP, subject to changes resulting from normal, year-end audit adjustments and except for the absence of notes; provided that,
so long as Parent is subject to the public reporting requirements of the Exchange Act, Parent’s filing of a Quarterly Report
on Form 10-Q with the SEC shall be deemed to satisfy the requirements of this Section 8.01(b) on the date on which such report
is first available via the SEC’s EDGAR system or a successor system related thereto;

 

(c) as
soon as available and in any event within five (5) Business Days following the date on which Parent files or is required to file
its Annual Report on Form 10-K with the SEC, a consolidated balance sheet for Parent and its Subsidiaries as of the end of such
fiscal year, and the related consolidated statements of income, shareholders’ equity and cash flows for such fiscal year,
all in reasonable detail and setting forth in comparative form the figures for the previous fiscal year, accompanied by a report
and opinion thereon of RBSM LLP or another firm of independent certified public accountants of recognized national standing reasonably
acceptable to the Administrative Agent, which report and opinion shall be prepared in accordance with GAAP and which shall not
be subject to any Impermissible Qualification; provided that, the financial statements for the fiscal years ending 2018
and 2019 may be subject to an Impermissible Qualification; provided further that, so long as Parent is subject to the public
reporting requirements of the Exchange Act, Parent’s filing of an Annual Report on Form 10-K with the SEC shall be deemed
to satisfy the requirements of this Section 8.01(c) on the date on which such report is first available via the SEC’s EDGAR
system or a successor system related thereto;

 

(d) together
with the financial statements required pursuant to Sections 8.01(a) (b) and (c), a compliance
certificate signed by a Responsible Officer of the Borrower as of the end of the applicable accounting period substantially in
the form of Exhibit E (a “Compliance Certificate”), including details of any issues raised by Parent’s
auditors that would be reasonably likely to result in a Material Adverse Effect and the creation or other acquisition of any Intellectual
Property by any Obligor or any of its Subsidiaries after the date hereof and during such prior fiscal quarter for which such Compliance
Certificate is delivered, which is registered or becomes registered or the subject of an application for registration with the
U.S. Copyright Office or the U.S. Patent and Trademark Office, as applicable, or with any other equivalent foreign Governmental
Authority; 

 

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(e) within
three (3) Business Days after the end of each fiscal month, a certificate signed by a Responsible Officer of the Borrower as of
the end of such fiscal month demonstrating compliance with Section 10.01 hereof;

 

(f) as
soon as available and in any event no later than forty-five (45) days following the end of any fiscal year of Parent, copies of
an annual budget (or equivalent) for Parent and its Subsidiaries, approved by Parent’s Board for the next succeeding fiscal
year, in form reasonably satisfactory to the Administrative Agent, accompanied by a certificate of the chief financial officer
of Parent certifying that (i) such budget was prepared by Parent in good faith, (ii) Parent had at the time of preparation of the
budget, and at all times thereafter (including on and as of the date of delivery to the Administrative Agent of such budget) has
continued to have, a reasonable basis for all of the assumptions contained in such budget and (iii) such budget was prepared in
accordance with, and based upon, such assumptions;

 

(g) promptly,
and in any event within five (5) Business Days after receipt thereof by any Obligor, copies of each notice or other correspondence
received from the SEC (or comparable agency in any applicable non-U.S. jurisdiction) concerning any investigation or possible investigation
or other inquiry by such agency regarding financial or other operational results of such Obligor (but in any case excluding any
routine comments and letters from the SEC relating to such Obligor’s filings with the SEC or information that would violate
confidentiality obligations to a Governmental Authority);

 

(h) information
regarding insurance maintained by Parent and its Subsidiaries as required under Section 8.05;

 

(i) within
five (5) days after delivery thereof, copies of all statements, reports and notices made available to Parent’s Board or
holders of Parent’s Equity Interests; provided that any such material may be redacted by Parent to (i) exclude
information relating to the Lenders (including the Borrower’s strategy regarding the Term Loan), (ii) prevent the
disclosure of trade secrets and (iii) protect and preserve attorney-client privilege;

 

(j) as
soon as possible and in any event within five (5) Business Days after the Borrower obtains knowledge of any Claim related to any
Obligor that that involves more than $500,000, written notice thereof from a Responsible Officer of the Borrower which notice shall
include any statement setting forth details of such Claim;

 

(k) as
soon as possible and in any event within two (2) Business Days after the Borrower or any other Obligor obtains knowledge of
and/or receipt by any such party from Sanofi, the Trustee (as defined in the S/I Deed of Trust) and/or any of their
respective affiliates, officers, directors, agents or representatives of any notice (whether oral, in writing or otherwise)
of any event of default (or any event that with the passage of time or the giving of notice (or both) would constitute an
event of default), a default and/or a breach by Borrower and/or Parent under any Sanofi Document, including, but not limited
to, any sale or notice of any intended sale of the Mortgaged Premises, any foreclosure or notice of foreclosure relating to
the Mortgaged Premises (including under the S/I Deed of Trust), any intended or actual termination of any Sanofi Document,
and any claim made against Borrower or Parent (including a claim for indemnification under any Sanofi Document);

 

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(l) concurrently
with the delivery to Sanofi thereof, any reports required to be delivered to Sanofi pursuant to the terms of any Sanofi Document;
and

 

(m) such
other information respecting the operations, properties, business or condition (financial or otherwise) of the Obligors (including
with respect to the Collateral) as the Administrative Agent may from time to time reasonably request;

 

provided, notwithstanding the foregoing,
Borrower covenants and agrees that neither Borrower, nor any other Person acting on its behalf, will provide, or be obligated to
provide, any Lender or its representatives with any information that Borrower believes constitutes material non-public information,
unless prior thereto such Lender shall have confirmed to Borrower in writing that it consents to receive such information. Borrower
understands and confirms that each Lender shall be relying on the foregoing covenant in effecting transactions in securities of
Borrower.

 

Section 8.02. Notices of Material Events.
Borrower will furnish to the Administrative Agent written (or, in the case of Section 8.02(n), written or telephonic) notice of
the following promptly (but in any event, except as otherwise set forth in 8.02(o), within five (5) Business Days) after a Responsible
Officer obtains knowledge of the existence thereof (or as otherwise provided below); provided that Parent’s disclosure
of such event in a press release and/or through a filing with the SEC in a Quarterly Report on Form 10-Q, an Annual Report on Form
10-K or a Current Report on Form 8-K shall be deemed to satisfy the requirements of this Section 8.02:

 

(a) the
occurrence of any Default or Event of Default;

 

(b) the
occurrence of any event with respect to any Obligor’s property or assets resulting in a Loss aggregating in excess of $250,000;

 

(c) (i)
any proposed Acquisition by any Obligor that would reasonably be expected to result in environmental liability under
Environmental Laws in excess of $250,000, (ii) any spillage, leakage, discharge, disposal, leaching, migration or release of
any Hazardous Material required to be reported to any Governmental Authority under applicable Environmental Laws that would
reasonably be expected to result in a liability in excess of $250,000 and (iii) all Claims, notices of violation, hearings,
investigations or proceedings pending or, to the Borrower’s knowledge, threatened in writing against or directly
affecting any Obligor or any of its Subsidiaries or with respect to the ownership, use, maintenance and operation of their
respective businesses, operations or properties, relating to Environmental Laws or Hazardous Material, in each case that
would reasonably be expected to result in a liability in excess of $250,000;

 

(d) the
assertion in writing by any Person against, or with respect to the activities of, any Obligor of any alleged violation of or
non-compliance with any Environmental Laws or any permits, licenses or authorizations required pursuant to any Environmental
Law which would reasonably be expected to result in liability to such Obligor in excess of $250,000;

 

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(e) the
filing or commencement of any action, suit or proceeding by or before any arbitrator or Governmental Authority against or directly
affecting any Obligor or any of its Subsidiaries that, if adversely determined, would reasonably be expected to result in a Material
Adverse Effect;

 

(f) (i)
on or prior to any filing by any ERISA Affiliate of any notice of intent to terminate any Title IV Plan, a copy of such notice
and (ii) promptly, and in any event within ten (10) days, after any Responsible Officer of any ERISA Affiliate knows or has reason
to know that an ERISA Event has occurred, a notice (which may be made by telephone if promptly confirmed in writing) describing
such ERISA Event and any action that any ERISA Affiliate proposes to take with respect thereto, together with (if applicable) a
copy of any notice filed with the PBGC or the IRS pertaining thereto;

 

(g) (i)
the termination of any Material Agreement other than on its scheduled termination date; (ii) the receipt by any Obligor of any
notice under any Material Agreement (and a copy thereof); (iii) the entering into of any new Material Agreement by an Obligor (and
a copy thereof); or (iv) any material amendment to a Material Agreement (and a copy thereof);

 

(h) the
reports and notices as required by the Security Documents;

 

(i) any
material change in accounting policies or financial reporting practices by the Obligors;

 

(j) any
labor controversy resulting in or threatening to result in any strike, work stoppage, boycott, shutdown or other material labor
disruption against or involving an Obligor or any of its Subsidiaries;

 

(k) any
licensing agreement or similar arrangement entered into by any Obligor or any of its Subsidiaries in connection with any material
infringement or alleged material infringement of the Intellectual Property of another Person;

 

(l) any
change to any Obligor’s or any of its Subsidiaries’ ownership or maintenance of Deposit Accounts, Securities Accounts
and Commodity Accounts (other than Excluded Accounts), by delivering to the Administrative Agent a supplement to the Schedules
to this Agreement and the Security Agreement, as applicable, setting forth a complete and correct list of all such accounts as
of the date of such change;

 

(m) (i)
any safety alerts, marketing suspensions, removals or similar actions conducted, to be undertaken, or issued by, any Obligor
or any of its Subsidiaries or (ii) any material safety alerts, marketing suspensions, removals or similar actions conducted,
to be undertaken, or issued by, any Obligor’s and any of its Subsidiaries’ agents, suppliers, licensors or
licensees, as the case may be, in each case of (i) and (ii) above, whether voluntary or at the request, demand or order of
any Regulatory Authority or otherwise;

 

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(n) any
Claim by any Person that any Obligor or any of its Subsidiaries has infringed upon any Intellectual Property of such Person, in
each case to the extent such Claim would reasonably be expected to cause a Material Adverse Effect;

 

(o) with
respect to any “Grantor” under the Security Agreement, if such Grantor intends to (i) change its location (as defined
in Section 9-307 of the UCC), or (ii) change its name from the name shown as its current legal name on Schedule 1 to the Security
Agreement, the Borrower shall provide five (5) days’ prior written notice to the Administrative Agent (or such shorter period
as may be acceptable to Administrative Agent in its reasonable discretion);

 

(p) the
occurrence or existence of any event, circumstance, act or omission that would cause any representation or warranty contained in
Sections 7.07, 7.18 or 7.19 to be incorrect in any material respect if such representation or warranty was to be made at the time
the Borrower learned of such event, circumstance, act or omission; provided that in the event notice is required hereunder
with respect to Section 7.19(h), Borrower hereby agrees that it will take all such actions that the Administrative Agent may reasonably
request to amend the Loan Document to reflect such change; and

 

(q) any
other development that results in, or would reasonably be expected to result in, a Material Adverse Effect.

 

Each notice delivered under this Section
8.02 shall be accompanied by a statement of a Responsible Officer of the Borrower setting forth in reasonable detail the event
or development requiring such notice and any action taken or proposed to be taken with respect thereto. Nothing in this Section
8.02 is intended to waive, consent to, or otherwise permit any action or omission that is otherwise prohibited by this Agreement
or any other Loan Document.

 

Section 8.03. Existence; Conduct of
Business. Such Obligor will, and will cause each of its Subsidiaries to, do or cause to be done all things necessary to preserve,
renew and keep in full force and effect its legal existence and all Governmental Approvals material to the conduct of its business;
provided that the foregoing shall not prohibit any transaction permitted under Section 9.03.

 

Section 8.04.
Payment of Obligations. Such Obligor will, and will cause each of its Subsidiaries to, pay and discharge its obligations,
including (i) all material Taxes, fees, assessments and governmental charges or levies imposed upon it or upon its properties
or assets prior to the date on which penalties attach thereto, and all material lawful Claims for labor, materials and
supplies which, if unpaid, would become a Lien (other than a Permitted Lien) upon any properties or assets of such Obligor
any of its Subsidiaries, except to the extent such Taxes, fees, assessments or governmental charges or levies are Permitted
Liens and (ii) all other lawful Claims which, if unpaid, would by Law become a Lien (other than a Permitted Lien) upon any
material properties or assets of such Obligor or any of its Subsidiaries, except to the extent any of the foregoing are being
contested in good faith by appropriate proceedings and are adequately reserved against in accordance with GAAP.

 

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Section 8.05. Insurance. At its
own cost and expense, each Obligor will, and will cause each of its Subsidiaries, to obtain and maintain insurance of the kinds,
and in the amounts, set forth below, it being understood and agreed that the insurance held by the Obligors on the Closing Date
is deemed to fulfill this requirement on the date hereof:

 

(a) All
Risks of Physical Loss Insurance. Insurance against loss, destruction or damage to its properties and assets (including the
Collateral) as determined in its good faith business judgment to be customary for companies similar to the Borrower.

 

(b) Commercial
General Liability Insurance. Commercial general liability insurance covering bodily injury, death, property damage, products
liability in such amounts as are generally required by institutional lenders for businesses and assets comparable to the business
and assets of the Borrower.

 

(c) Workers
Compensation Insurance. Workers’ compensation insurance with respect to any work performed on or about the property or
assets of the Borrower.

 

(d) General
Requirements. All of the insurance policies of the Obligors required pursuant to this Section 8.05 will (i) be issued by
financially sound and reputable insurers, and (ii) from and after the Closing Date
(or such later date as agreed to by the Administrative Agent in its reasonable discretion), (x) name the Administrative Agent
as a “loss payee,” “additional insured” or “mortgagee,” as applicable, and (y) provide
for thirty (30) days’ prior written notice (ten (10) days’ prior written notice from the Borrower for nonpayment
of premium) to the Administrative Agent before such policy is canceled or terminated. In the event the Obligors fail to
maintain the insurance required pursuant to this Section 8.05, then the Administrative Agent may obtain insurance necessary
to comply with this Section 8.05 with respect to such Obligors, in each case at the expense of the Borrower (payable on
demand). The amount of any such expenses shall accrue interest at the Default Rate if not paid on demand, and shall
constitute “Obligations.” All of the insurance policies required hereby will be evidenced by one or more
certificates of insurance, together with appropriate loss payee or additional insured clauses or endorsements in favor of the
Administrative Agent as required by this Section, delivered to the Administrative Agent at such times as the Administrative
Agent may reasonably request from time to time. Unless an Event of Default has occurred and is continuing, the Administrative
Agent agrees to turn over to the Borrower any proceeds from insurance received by the Administrative Agent within fifteen
(15) Business Days following its receipt of a notice by the Borrower of the Borrower’s intention to reinvest such
proceeds as set forth in Section 3.03(b).

 

Section 8.06.
Books and Records; Inspection Rights. Such Obligor will, and will cause each of its Subsidiaries to, keep proper books of
record and account in which full, true and correct entries are made of all dealings and transactions. Such Obligor will, and
will cause each of its Subsidiaries to, permit any representatives designated by the Administrative Agent, upon at least
three (3) Business Days’ prior written notice and during normal business hours, to visit and inspect its properties, to
examine and make extracts from its books and records (excluding records subject to attorney-client privilege, subject to
confidentiality agreements with third parties that preclude disclosure to the Administrative Agent (acting in such capacity)
or subject to confidentiality restrictions pursuant to Law (including HIPAA)), and to discuss its affairs, finances and
condition with its officers and independent accountants, all at such reasonable times (but not more often than twice per year
unless an Event of Default has occurred and is continuing) as the Administrative Agent may request. The Borrower shall pay
all reasonable and documented costs and expenses of all such inspections.

 

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Section 8.07. Compliance with Laws and
Other Obligations. Such Obligor will, and will cause each of its Subsidiaries to, (i) comply in all material respects with
all applicable Laws (including Environmental Laws) and (ii) comply in all material respects with all terms of outstanding Indebtedness
and all Material Agreements, except where the failure to do so, individually or in the aggregate, would not reasonably be expected
to result in a Material Adverse Effect.

 

Section 8.08. Maintenance of Properties,
Etc. Such Obligor shall, and shall cause each of its Subsidiaries to, maintain and preserve all of its real and tangible personal
property necessary in the conduct of its business in good working order and condition in accordance with the general practice of
other Persons of similar character and size, ordinary wear and tear and damage from casualty or condemnation excepted.

 

Section 8.09. Maintenance of
Regulatory Approvals and Material Intellectual Property. (a) Such Obligor
shall, and shall cause each of its Subsidiaries to, maintain, in full force and effect in all material respects, each
Regulatory Approval required to conduct their respective businesses as presently conducted; provided that such Obligor
or such Subsidiary shall not be required to preserve any such Regulatory Approval if such Obligor or such Subsidiary shall
determine in its reasonable good faith judgment that the preservation thereof is no longer necessary in the conduct of its
business.

 

(b) Such
Obligor shall, and shall cause each of its Subsidiaries to, use commercially reasonable efforts to (i) protect and preserve all
Material Intellectual Property necessary in the conduct of its business and (ii) enforce or defend the Material Intellectual Property
against infringement, misappropriation, violation or interference by any other Persons; provided that nothing in this Section
8.09(b) shall prohibit or prevent such Obligor or any Subsidiary from discontinuing the protection, preservation or maintenance
of, or failing to enforce and defend, any of its Intellectual Property if, in the reasonable good faith judgment of such Obligor
or such Subsidiary, such Intellectual Property is no longer necessary and material to the conduct of its business.

 

Section 8.10.
Action Under Environmental Laws. Such Obligor shall, and shall cause each of its Subsidiaries to, upon the Borrower
obtaining knowledge of the release of any Hazardous Materials or the existence of any environmental liability under
applicable Environmental Laws with respect to their respective businesses, operations or properties, take all actions, at
their cost and expense, as shall be necessary or advisable to investigate and clean up the condition of their respective
businesses, operations or properties, including all required removal, containment and remedial actions, and restore their
respective businesses, operations or properties to a condition in each case in compliance with applicable Environmental Laws,
except to the extent the failure to take such action would not reasonably be likely to result in a Material Adverse
Effect.

 

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Section 8.11. Use of Proceeds. The
proceeds of the Term Loan will be used only as provided in Section 2.03. Without limiting the foregoing, no part of the proceeds
of the Term Loan will be used, whether directly or indirectly, for any purpose that entails a violation of any of the Regulations
of the Board of Governors of the Federal Reserve System, including Regulations T, U and X.

 

Section 8.12. Certain Obligations
Respecting Subsidiaries; Further Assurances.

 

(a) Subsidiary
Guarantors. Such Obligor will take such action, and will cause each of its Subsidiaries to take such action, from time to time
as shall be necessary to ensure that all Subsidiaries are “Subsidiary Guarantors” hereunder. Without limiting the generality
of the foregoing, in the event that Parent or any of its Subsidiaries shall form or acquire any new Subsidiary, it and its Subsidiaries
shall concurrently:

 

(i) cause
such new Subsidiary to become a “Subsidiary Guarantor” hereunder, and a “Grantor” under the Security Agreement,
pursuant to a Guarantee Assumption Agreement;

 

(ii) take
such action or cause such Subsidiary to take such action (including joining the Security Agreement, delivering such shares of stock
together with undated transfer powers executed in blank and entering into the applicable Short-Form IP Security Agreements) as
shall be necessary to create and perfect valid and enforceable first priority Liens (subject to Permitted Liens) on substantially
all of the personal property of such new Subsidiary (other than Excluded Accounts) as collateral security for the obligations of
such new Subsidiary hereunder;

 

(iii) cause
the parent of such Subsidiary to execute and deliver a pledge agreement in favor of the Administrative Agent for the benefit of
the Secured Parties in respect of all outstanding issued shares of such Subsidiary; and

 

(iv) deliver
such proof of corporate or other organizational action, incumbency of officers, opinions of counsel and other documents as is consistent
with those delivered by each Obligor pursuant to Section 6.01, or as the Administrative Agent shall have reasonably requested.

 

(b) Further
Assurances. Subject to the limitations set forth herein and in the other Loan Documents, such Obligor will, and will cause
each of its Subsidiaries to, take such action from time to time as shall reasonably be requested by the Administrative Agent to
effectuate the purposes and objectives of this Agreement.

 

Without limiting the generality of
the foregoing, each Obligor will, and will cause each Person that is required to be a Subsidiary Guarantor to, take such
action from time to time (including executing and delivering such assignments, security agreements, control agreements and
other instruments) as shall be reasonably requested by the Administrative Agent to create, in favor of the Lenders, perfected
security interests and Liens in substantially all of the personal property of such Obligor as collateral security for the
Obligations; provided that any such security interest or Lien shall be subject to the relevant requirements of the
Security Documents.

 

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Section 8.13. Termination of Non-Permitted
Liens. In the event that the Borrower obtains knowledge of or receives notification from the Administrative Agent of the existence
of any outstanding Lien against any property of such Obligor or any of its Subsidiaries, which Lien is not a Permitted Lien, such
Obligor shall promptly terminate or cause the termination of such Lien.

 

Section 8.14. Intellectual Property.
In the event that any Obligor acquires Obligor Intellectual Property during the term of this Agreement, then the provisions of
this Agreement shall automatically apply thereto and any such Obligor Intellectual Property shall automatically constitute part
of the Collateral under the Security Documents, without further action by any party, in each case from and after the date of such
acquisition (except that any representations or warranties of any Obligor shall apply to any such Obligor Intellectual Property
only from and after the date, if any, subsequent to such acquisition that such representations and warranties are brought down).

 

Section 8.15. ERISA Compliance.
Such Obligor shall comply, and to the extent applicable, shall cause each of its Subsidiaries to comply, in all material respects
with the provisions of ERISA with respect to any Title IV Plans and Multiemployer Plans to which such Obligor or any such Subsidiary
is a party as employer.

 

Section 8.16. Cash Management.

 

(a) Subject
to Section 8.17, on and after the Closing Date (or such later date as agreed to by the Administrative Agent in its reasonable discretion),
each Obligor shall maintain all Deposit Accounts, Securities Accounts, Commodity Accounts and lockboxes (other than Excluded Accounts)
with a bank or financial institution that has executed and delivered to the Administrative Agent an account control agreement,
in form and substance reasonably acceptable to the Administrative Agent (each such Deposit Account, Securities Account, Commodity
Account and lockbox, a “Controlled Account”); and

 

(b) the
Obligors shall deposit promptly, and in any event no later than five (5) Business Days after the date of receipt thereof, all
cash, checks, drafts or other similar items of payment relating to or constituting payments made in respect of any and all
accounts and other rights and interests into a Deposit Account of an Obligor (which Deposit Account shall, on and after the
Closing Date (or such later date as agreed to by the Administrative Agent in its reasonable discretion), be a Controlled
Account).

 

Section
8.17. Post-Closing Obligations. Within the time periods specified on Schedule 8.17 (as
each may be extended by the Administrative Agent in its reasonable discretion), complete such undertakings as are set forth on
Schedule 8.17.

 

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Section 8.18. Milestone. On or before
March 31, 2019, enter into a collaboration agreement with a pharmaceutical or biotechnology company that results in aggregate upfront
fees in excess of $5,000,000.

 

Section 8.19. Icagen-T Lien. Within
thirty (30) days after the earlier of (i) the date the S/I MSA no longer prohibits Parent from pledging Borrower’s Equity
Interests to the Administrative Agent and (ii) the date the S/I MSA is terminated, Parent shall (x) deliver all certificates representing
100% of Borrower’s Equity Interests to the Administrative Agent, accompanied by undated instruments of transfer duly executed
in blank and (y) if Administrative Agent shall so require, enter into a pledge agreement with respect to such Equity Interests
in form and substance reasonably acceptable to the Administrative Agent.

 

Section 8.20. Board Observer Rights.
Until the Obligations (other than the Warrant Obligations and contingent indemnification obligations for which no claim has been
made) have been paid in full in cash, Parent shall permit the Administrative Agent on behalf of all of the Lenders (the “Observer”)
to attend and observe (but not vote) at all meetings of Parent’s (or any Subsidiary’s, as applicable) Board or any
committee thereof (each a “Committee”), whether in person, by telephone or otherwise as requested by the Observer.
Parent and such Subsidiaries shall notify the Observer in writing at the same time as furnished to members of the applicable Board
or Committee of (i) the date and time for each general or special meeting of any such Board or Committee and (ii) the adoption
of any resolutions or actions by any such Board or any such Committee by written consent (describing, in reasonable detail, the
nature and substance of such action). Parent and each of its Subsidiaries shall concurrently deliver to the Observer all notices
and any materials delivered to the official members of such Board or Committee in connection with a meeting or action to be taken
by written consent, including a draft of any material resolutions or actions proposed to be adopted by written consent. The Observer
shall be free prior to such meeting or adoption by written consent to contact members of any applicable Board or Committee and
discuss the pending actions to be taken. Notwithstanding the foregoing, the Observer shall not be entitled to receive materials
relating to, or be in attendance for, any discussions relating to topics which (x) are subject to attorney client privilege, or
(y) present a conflict of interest for the Observer. All such discussions and materials shall be subject to the confidentiality
provisions set forth in Section 14.16.

 

Section 8.21. Cash Flow. No later
than Wednesday of each week (beginning September 4, 2019), the Obligors shall provide to the Administrative Agent and the Lenders
a 13-week cash flow forecast showing projected cash receipts and cash disbursements (including referencing line item sources and
uses of cash) of the Obligors over the immediately succeeding 13-week period.

 

Section 8.22. Sanofi Agreement.
On or before January 31, 2020, the Borrower shall have caused the termination of the S/I MSA and the release of all Liens thereunder
(including, without limitation, the S/I Deed of Trust and the S/I Warranty and Reverter Deed).

 

Section 8.23. Tucson Real Estate.
On or before February 28, 2020, the Borrower shall have caused the disposition and sale of the real property in Tucson, Arizona
at which its research and development site is located (the “Tucson Real Estate”), the proceeds of which shall
be greater than or equal to $20,000,000.

 

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Section 8.24. Series C Capital Raise.
On or before November 30, 2019, the Series C Holders or other investors shall have made new cash equity contributions to the Parent
in an aggregate amount of not less than $2,500,000.

 

Section
8.25 Subordinated Notes. On or before the First Amendment Date, the Parent shall have issued the initial Subordinated
Notes, under which the Parent shall have received $500,000.

 

Section 9. Negative Covenants.

 

Each Obligor covenants and agrees with
the Lenders that, until the Commitments have expired or been terminated and all Obligations (other than Warrant Obligations and
contingent obligations as to which no claims have been asserted) have been paid in full indefeasibly in cash:

 

Section 9.01. Indebtedness. Such
Obligor will not, and will not permit any of its Subsidiaries to, create, incur, assume or permit to exist any Indebtedness, whether
directly or indirectly, except:

 

(a) the
Obligations;

 

(b) Indebtedness
existing on the on the Closing Date and set forth on Schedule 7.13(a) and Permitted Refinancings thereof;

 

(c) accounts
payable to trade creditors for goods and services and current operating liabilities (not the result of the borrowing of money)
incurred in the ordinary course of such Obligor’s or such Subsidiary’s business in accordance with customary terms
and paid within ninety (90) days of becoming due, unless contested in good faith by appropriate proceedings and reserved for in
accordance with GAAP;

 

(d) Indebtedness
consisting of guarantees resulting from the endorsement of negotiable instruments for collection in the ordinary course of business;

 

(e) Indebtedness
of an Obligor and its Subsidiaries to the extent the same is permitted as an Investment pursuant to Section 9.05;

 

(f) Guarantees
by any Obligor of Indebtedness of any other Obligor;

 

(g) Purchase
money and capital lease financing; provided that (i) if secured, the collateral therefor consists solely of the assets being
financed, the products and proceeds thereof and books and records related thereto, and (ii) the aggregate outstanding principal
amount of such Indebtedness does not exceed $1,000,000 at any time;

 

(h) Indebtedness
under Hedging Agreements permitted by Section 9.05(f);

 

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(i) Indebtedness
consisting of the financing of insurance premiums in respect of insurance policies insuring assets or businesses of an
Obligor and/or its Subsidiaries written or arranged in the ordinary course of business, in each case in an amount not to
exceed the amount of the applicable insurance premium in respect of any such policy plus interest and financing charges
applicable thereto;

 

(j) Indebtedness
in respect of any agreement providing for treasury, depositary or cash management services, including in connection with any credit
cards, automated clearing house transfers of funds transaction, securities settlements, foreign exchange contracts or any similar
transfers, netting services, overdraft protections and other cash management and similar arrangements, in each case in the ordinary
course of business;

 

(k) advances
or deposits from customers or vendors received in the ordinary course of business;

 

(l) workers’
compensation claims, payment obligations in connection with health, disability or other types of social security benefits, unemployment
or other insurance obligations and reclamation and statutory obligations, in each case incurred in the ordinary course of business;

 

(m) Indebtedness
consisting of letters of credit, letters of guaranty and bankers’ acceptances to the extent incurred in the ordinary course
of business in an aggregate amount not to exceed $1,000,000;

 

(n) Indebtedness
which may be deemed to exist pursuant to any guaranties, indemnities, performance, surety, statutory, appeal or similar obligations
incurred in the ordinary course of business and Indebtedness constituting guaranties in the ordinary course of business of the
obligations of suppliers, customers, franchisees and licensees of Parent and its Subsidiaries;

 

(o) Indebtedness
of Parent and its Subsidiaries incurred pursuant to the Parent Loan Documents;

 

(p) Indebtedness
of one Obligor to another Obligor, provided that such Indebtedness shall be (A) evidenced by promissory notes and all such
notes shall be subject to a first priority Lien pursuant to the Security Agreement, (B) unsecured, and (C) subordinated in right
of payment to the payment in full of the Obligations (other than the Warrant Obligations) pursuant to the terms of the applicable
promissory notes or an intercompany subordination agreement, in each case in form and substance satisfactory to the Administrative
Agent in its sole discretion;

 

(q) Indebtedness
owed to Pfizer, Inc. pursuant to the terms of that certain Asset Purchase and Collaboration Agreement, dated as of June 26, 2015,
by and among Pfizer Research (NC), Inc. and Parent, as amended by that certain Amendment to Asset Purchase and Collaboration Agreement,
dated as of July 15, 2016;

 

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(r) (A)
the Bridge Notes, provided that on or prior to the Closing Date, the Bridge Notes have been amended in form and
substance satisfactory to the Administrative Agent to subordinate right of payment to the payment in full of the Obligations
(other than the Warrant Obligations), subject to permitted payments under Section 9.07, and (B) any Permitted Refinancings
thereof, provided that Parent may elect to increase the interest rate on such Bridge Notes to 12% per annum, payable
in accordance with Section 9.07 hereof; and

 

(s) Indebtedness
incurred under the Subordinated Notes.

 

Section 9.02. Liens. Such Obligor
will not, and will not permit any of its Subsidiaries to, create, incur, assume or permit to exist any Lien on any property now
owned or hereafter acquired by it or such Subsidiary, except:

 

(a) Liens
securing the Obligations;

 

(b) any
Lien on any property or asset of such Obligor or any of its Subsidiaries existing on the Closing Date and set forth on Schedule
7.13(c); provided that (i) no such Lien shall extend to any other property or asset of such Obligor or any of its Subsidiaries
other than that which it secures on the date hereof and any cross-collateralization of other assets financed with the same holder
of such Lien, and (ii) any such Lien shall secure only those obligations which it secures on the Closing Date and extensions, renewals
and replacements thereof that do not increase the outstanding principal amount thereof, plus fees and expenses incurred in connection
therewith;

 

(c) Liens
securing Indebtedness permitted by Section 9.01(g); provided that (i) such Liens are limited solely to the assets, products,
proceeds and books and records permitted to be secured pursuant to Section 9.01(g), and (ii) the Indebtedness secured thereby does
not exceed the lower of the cost or fair market value of the assets being financed or acquired and Liens incurred in connection
with extension, renewal or refinancing of such Indebtedness;

 

(d) Liens
imposed by any applicable Law arising in the ordinary course of business, including (but not limited to) carriers’, warehousemen’s,
landlord’s and mechanics’ liens and other similar Liens arising in the ordinary course of business and which (x) do
not in the aggregate materially detract from the value of the property subject thereto or materially impair the use thereof in
the operations of the business of such Person or (y) are being contested in good faith by appropriate proceedings, which proceedings
have the effect of preventing the forfeiture or sale of the property subject to such Liens and for which adequate reserves have
been made if required in accordance with GAAP;

 

(e) Liens,
pledges or deposits made in the ordinary course of business in connection with leases, or bids, contracts, appeal bonds, workers’
compensation, unemployment insurance or other similar social security legislation, and not in connection with money borrowed;

 

(f) Liens
securing Taxes, assessments and other governmental charges, the payment of which (i) is not yet delinquent or (ii) is being
contested in good faith by appropriate proceedings promptly initiated and diligently conducted and for which adequate
reserves have been made if required in accordance with GAAP;

 

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(g) servitudes,
easements, rights of way, restrictions and other similar encumbrances on real property imposed by any applicable Law and Liens
consisting of zoning or building restrictions, easements, licenses, restrictions on the use of property or minor imperfections
in title thereto which, in the aggregate, are not material, and which do not in any case materially detract from the value of the
property subject thereto or interfere with the ordinary conduct of the business of any of the Obligors or any of their Subsidiaries;

 

(h) with
respect to any real property, (i) such defects or encroachments as might be revealed by an up-to-date survey of such real property;
(ii) the reservations, limitations, provisos and conditions expressed in the original grant, deed or patent of such property by
the original owner of such real property pursuant to Laws; (iii) rights of expropriation, access or user or any similar right conferred
or reserved by or in any Law, which, in the aggregate for clauses (i), (ii) and (iii), are not material, and which do not in any
case materially detract from the value of the property subject thereto or interfere with the ordinary conduct of the business of
any of the Obligors or their Subsidiaries; and (iv) leases or subleases in the ordinary course of business;

 

(i) bankers’
liens, rights of setoff, netting and similar Liens incurred on deposits made in the ordinary course of business or otherwise in
connection with the services permitted by Section 9.01(j);

 

(j) Liens
in connection with any ordinary course interest or title of a licensor, sublicensor, lessor or sublessor not otherwise prohibited
by Section 9.13;

 

(k) deposits
made in connection with a contemplated Permitted Acquisition in an aggregate amount not to exceed ten percent (10%) of the consideration
of such Acquisition;

 

(l) Liens
incurred in connection with the Indebtedness permitted by Sections 9.01(m), and 9.01(n);

 

(m) Liens
on insurance policies and the proceeds thereof (excluding any benefits or any rights to receive payment under any insurance policies)
incurred in connection with the financing in the ordinary course of business of insurance premiums, provided, that such
Liens shall be limited only to the unused portion of the premiums payable under such insurance policies and the proceeds of such
insurance premiums;

 

(n) (i)
Restrictive Agreements permitted pursuant to Section 9.11, (ii) any customary provisions in contracts (including without
limitation leases and licenses of Intellectual Property) restricting the assignment thereof or, in the case of any lease or
license, the sublease or sublicense or other disposition of the applicable leased or licensed property, (iii) restrictions or
conditions imposed by any agreement governing secured Permitted Indebtedness permitted under Section 9.01(g), to the extent
that such restrictions or conditions apply only to the property or assets securing such Indebtedness and (iv) restrictions in
agreements related to any Asset Sale to the extent such Asset Sale would be a permitted Asset Sale under this Agreement;

 

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(o) Liens
of Parent and its Subsidiaries granted pursuant to the Parent Loan Documents; and

 

(p) Liens
in favor of customs and revenue authorities arising as a matter of law to secure payments of custom duties in connection with the
importation of goods;

 

provided that no Lien otherwise
permitted under any of the foregoing clauses shall apply to any Material Intellectual Property except for Liens described in clauses
(a), (j) and (n).

 

Section 9.03. Fundamental Changes
and Acquisitions. Such Obligor will not, and will not permit any of its Subsidiaries to, (i) enter into any transaction
of merger, amalgamation or consolidation, (ii) liquidate, wind up or dissolve itself (or suffer any liquidation or
dissolution), (iii) make or consummate any Acquisition of any Person, (iv) acquire
or create any Foreign Subsidiary, or (v) acquire any other assets or properties (other than assets or properties in the
nature of inventory, software, equipment, supplies and other assets acquired for use in the ordinary course of business,
including in connection with the expansion or replacement of equipment used in Parent’s and its Subsidiaries’
facilities), except:

 

(a) transactions
permitted by Section 9.01 and 9.05;

 

(b) the
merger, amalgamation, consolidation, liquidation, winding up or dissolution of any Subsidiary Guarantor with or into any Obligor;
provided that (i) with respect to any such transaction involving the Borrower, the Borrower must be the surviving or successor
entity of such transaction and (ii) with respect to any such transaction involving Parent, Parent must be the surviving or successor
entity of such transaction;

 

(c) the
sale, lease, transfer or other disposition by any Subsidiary of any or all of its property (upon voluntary liquidation or otherwise)
to any Obligor;

 

(d) the
sale, transfer or other disposition of the Equity Interests of any Subsidiary Guarantor to Parent;

 

(e) the
creation of any Subsidiary subject to compliance with Section 8.12; and

 

(f) Permitted
Acquisitions.

 

Section 9.04. Lines of Business.
Such Obligor will not, and will not permit any of its Subsidiaries to, engage in any business other than the business engaged in
on the date hereof by such Obligor or such Subsidiary or a business reasonably related, incidental or complimentary thereto or
a reasonable extension thereof or a business having a similar customer base.

 

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Section 9.05. Investments. Such
Obligor will not, and will not permit any of its Subsidiaries to, make, directly or indirectly, or permit to remain outstanding
any Investments except:

 

(a) Investments
outstanding on the date hereof and identified in Schedule 9.05 and any modification, replacement, renewal or extension thereof
to the extent not involving new or additional Investments;

 

(b) operating
deposit accounts with banks and securities accounts with banks and other financial institutions that either qualify as an Excluded
Account or comply with Section 8.16;

 

(c) extensions
of credit in the nature of deposits, accounts receivable, trade debt granted or notes receivable arising from the purchase or sale
of goods or services in the ordinary course of business and prepaid royalties and other credit extensions and advances arising
in the ordinary course of business;

 

(d) Permitted
Cash Equivalent Investments to the extent held in a Controlled Account;

 

(e) Investments
by any Obligor in any other Obligor;

 

(f) Hedging
Agreements entered into in by any Obligor or its Subsidiary in the ordinary course of business for the purpose of hedging currency
risks or interest rate risks (and not for speculative purposes) not to exceed $250,000 in the aggregate outstanding at any time;

 

(g) Investments
consisting of prepaid expenses, negotiable instruments held for collection or deposit, security deposits with utilities, landlords
and other like Persons and deposits in connection with workers’ compensation and similar deposits, in each case made in the
ordinary course of business;

 

(h) loans,
advances and guarantees to or in favor of employees, officers, directors and consultants in the ordinary course of business which
in the aggregate shall not exceed $250,000 outstanding at any time;

 

(i) Investments
(i) in connection with a Permitted Acquisition and (ii) in connection with Casualty Events permitted by Section 3.03(b);

 

(j) Investments
received in connection with any Insolvency Proceedings in respect of any customers, suppliers or clients or in settlement of delinquent
obligations of, and other disputes with, customers, suppliers or clients;

 

(k) Investments
permitted by Sections 9.01, 9.02, 9.03, 9.06 and 9.09;

 

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(l) Investments
in newly created Subsidiaries to the extent such Subsidiary complies with Section 8.12 to the extent applicable; and

 

(m) so
long as no Default or Event of Default has occurred and is continuing at the time such Investments are made, other Investments
in an aggregate principal amount not to exceed $500,000 at any time outstanding.

 

Section 9.06. Restricted Payments.
Such Obligor will not, and will not permit any of its Subsidiaries to, declare or make, or agree to pay or make, directly or indirectly,
any Restricted Payment; provided that the following Restricted Payments shall be permitted so long as no Event of Default
has occurred and is continuing or could reasonably be expected to occur or result from such Restricted Payment:

 

(a) distributions
with respect to Parent’s Equity Interests payable solely in shares of its Qualified Equity Interests (or the equivalent thereof);

 

(b) Parent’s
purchase, redemption, retirement, or other acquisition of shares of its Equity Interests with the proceeds received from a substantially
concurrent issue of new shares of its Qualified Equity Interests;

 

(c) upon
the death, incapacity or termination of any stockholder or the exercise of a right of first refusal or similar right in respect
of any stockholder, Parent may repurchase the stock of such stockholder or such stockholder’s family, trusts, estates and
heirs pursuant to stock plans or stock repurchase agreements in an amount not to exceed $250,000 per fiscal year;

 

(d) cash
in lieu of the issuance of fractional shares upon the conversion of convertible securities (or in connection with the exercise
of warrants or similar securities) not to exceed $100,000 in the aggregate;

 

(e) any
non-cash (other than cash in lieu of fractional shares) conversion or exercise requests in respect of any convertible securities,
options or warrants of Parent into Equity Interests of Parent pursuant to the terms of such convertible securities, options or
warrants or otherwise in exchange therefor;

 

(f) distributions
paid by any Subsidiary directly or indirectly to any Obligor;

 

(g) cash
payments made to redeem, purchase, repurchase or retire the Warrant Obligations in accordance with the terms of the Warrant;

 

(h) payments
of Indebtedness permitted pursuant to Section 9.07;

 

(i) the
non-cash accrual of dividends pursuant to the terms of the Series C Preferred Stock; and solely to the extent considered a
Restricted Payment, Investments permitted pursuant to Section 9.05 and transactions permitted pursuant to Section 9.03.

 

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Section 9.07. Payments of Indebtedness.
Such Obligor will not, and will not permit any of its Subsidiaries to, make any payments in respect of any Indebtedness for borrowed
money other than (i) payments of the Obligations, (ii) payments of the “Obligations” (as defined in the Parent Credit
Agreement), pursuant to the terms of the Parent Credit Agreement, (iii) scheduled payments of any other Permitted Indebtedness
(other than the Bridge Notes), (iv) non-cash payments of interest under the Bridge Notes, (v) Permitted Refinancings of Permitted
Indebtedness, and (vi) cash payments of principal and interest on the Bridge Notes (including any accrued interest thereon) so
long as at the time of such payment and after giving effect thereto, no Default or Event of Default shall have occurred and is
continuing.

 

Section 9.08. Change in Fiscal Year.
Such Obligor will not, and will not permit any of its Subsidiaries to, change the last day of its fiscal year from that in effect
on the date hereof, except to change the fiscal year of a Subsidiary acquired in connection with a Permitted Acquisition to conform
its fiscal year to that of Parent.

 

Section 9.09. Sales of Assets, Etc.
Such Obligor will not, and will not permit any of its Subsidiaries to, sell, lease, transfer, or otherwise dispose of any of its
assets or property (including accounts receivable and capital stock of Subsidiaries), or forgive, release or compromise any amount
owed to such Obligor or Subsidiary, in each case, in any single transaction or series of transactions (any thereof, an “Asset
Sale”), except (so long as such proposed Asset Sale does not result in, or could not reasonably be expected to result
in, an Event of Default):

 

(a) sales
or leases of inventory in the ordinary course of its business on ordinary business terms;

 

(b) the
forgiveness, release, discounts or compromise of any amount owed to any Obligor or Subsidiary in the ordinary course of business;

 

(c) Asset
Sales that constitute licenses of Intellectual Property in the ordinary course of business that are not otherwise prohibited by
Section 9.13;

 

(d) transfers
of assets or property (other than any Material Intellectual Property) by any Subsidiary Guarantor to any Obligor;

 

(e) dispositions
of any assets or property (other than any Material Intellectual Property) that is obsolete or worn out or no longer used or useful
in the business;

 

(f) dispositions
resulting from Casualty Events;

 

(g) in
connection with any transaction permitted by Sections 9.02, 9.03, 9.05 and 9.06;

 

(h) disposition
of cash or Permitted Cash Equivalent Investments; and

 

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(i) so
long as no Default or Event of Default has occurred and is continuing at the time of such sale, other Asset Sales not to exceed
$250,000 in the aggregate per fiscal year.

 

Section 9.10. Transactions with Affiliates.
Such Obligor will not, and will not permit any of its Subsidiaries to, sell, lease, license or otherwise transfer any assets to,
or purchase, lease, license or otherwise acquire any assets from, or otherwise engage in any other transactions with, any of its
Affiliates, except:

 

(a) transactions
between or among Parent or any Subsidiary of Parent and any other Subsidiary of Parent;

 

(b) any
transaction permitted by Section 9.01, 9.03, 9.05, 9.06 or 9.09;

 

(c) customary
compensation and indemnification of, and other employment arrangements with, directors, officers and employees of such Obligor
or any of its Subsidiaries in the ordinary course of business;

 

(d) other
transactions having terms that are no less favorable (including the amount of cash or other consideration received or paid by any
Obligor) to any Obligor or any of its Subsidiaries, as the case may be, than those that would be obtained in a comparable arm’s-length
transaction with a Person not an Affiliate of such Person; and

 

(e) the
transactions set forth on Schedule 9.10.

 

Section 9.11. Restrictive Agreements.
Such Obligor will not, and will not permit any of its Subsidiaries to, directly or indirectly, enter into, incur or be a party
to any Restrictive Agreement; provided that the foregoing shall not apply to (i) restrictions and conditions imposed by
Law or the Loan Documents and (ii) any Restrictive Agreement to which any Obligor or any of its Subsidiaries is party on the date
hereof and that is listed on Schedule 7.15.

 

Section 9.12. Modifications and Terminations
of Material Agreements and Organic Documents. Such Obligor will not, and will not permit any of its Subsidiaries to:

 

(a) amend,
modify or terminate any Organic Document that adversely affects the Lenders (solely in their capacity as Lenders and not as shareholders)
in any material respect without the prior written consent of the Administrative Agent which shall not be unreasonably withheld,
conditioned or delayed; or

 

(b) take
or omit to take any action that results in the termination of, or permits any other Person to terminate, any Material Agreement
or Material Intellectual Property that adversely affects the Lenders in any material respect, without the prior written consent
of the Administrative Agent which shall not be unreasonably withheld, conditioned or delayed.

 

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Section 9.13. Licensing of Intellectual
Property. No Obligor shall enter into an exclusive license of its Material Intellectual Property without the prior written
consent of the Administrative Agent.

 

Section 9.14. Sales and Leasebacks.
Except as disclosed on Schedule 9.14, such Obligor will not, and will not permit any of its Subsidiaries to, become liable, directly
or indirectly, with respect to any lease, whether an operating lease or a Capital Lease Obligation, of any property (whether real,
personal, or mixed), whether now owned or hereafter acquired, (i) which such Person has sold or transferred or is to sell or transfer
to any other Person and (ii) which such Obligor or Subsidiary intends to use for substantially the same purposes as property which
has been or is to be sold or transferred.

 

Section 9.15. Hazardous Material.
Such Obligor will not, and will not permit any of its Subsidiaries to, use, generate, manufacture, install, treat, release, store
or dispose of any Hazardous Material, except in compliance with all applicable Environmental Laws or where the failure to comply
would not reasonably be expected to result in a Material Adverse Effect.

 

Section 9.16. Accounting Changes.
Such Obligor will not, and will not permit any of its Subsidiaries to, make any significant change in accounting treatment or reporting
practices, except as required or permitted by GAAP.

 

Section
9.17. Compliance with ERISA. No ERISA Affiliate shall cause or suffer to exist (i) any
ERISA Event that would reasonably be expected to result in the imposition of a Lien under ERISA or Code Section 430(k) on the
assets or property of any Obligor or any of its Subsidiaries or (ii) any other ERISA Event that would reasonably be expected,
individually or in the aggregate, to have a Material Adverse Effect.

 

Section 10. Financial Covenants.

 

Section 10.01. Minimum Liquidity.
Parent and its Subsidiaries shall maintain a minimum aggregate balance of (x) from the Closing Date until March 31, 2019, $1,000,000,
and (y) at all times thereafter, $1,500,000, in each case in cash in one or more accounts (which accounts shall, on and after the
Closing Date (or such later date as agreed to by the Administrative Agent in its reasonable discretion), be Controlled Accounts),
free and clear of all Liens, other than Liens granted hereunder in favor of the Administrative Agent and other Permitted Liens.

 

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Section 10.02. Minimum Revenue.
On each date set forth below (a “Calculation Date”) under the heading “Calculation Date,” the Consolidated
Net Revenue for the trailing twelve-month period ended on such Calculation Date shall not be less than the amount set forth opposite
such Calculation Date:

 

	Calculation Date	 	Net Revenue	 
	December 31, 2018	 	$	11,337,000	 
	March 31, 2019	 	$	11,430,000	 
	June 30, 2019	 	$	10,822,000	 
	September 30, 2019	 	$	10,777,000	 
	December 31, 2019	 	$	10,836,000	 
	March 31, 2020	 	$	11,256,000	 
	June 30, 2020	 	$	12,112,000	 
	September 30, 2020	 	$	12,604,000	 
	December 31, 2020	 	$	14,117,000	 
	March 31, 2021	 	$	14,258,000	 
	June 30, 2021	 	$	14,435,000	 
	September 30, 2021	 	$	14,590,000	 
	December 31, 2021	 	$	14,823,000	 
	March 31, 2022	 	$	14,971,000	 
	June 30, 2022	 	$	15,157,000	 

 

Section
11. Events of Default.

 

Section 11.01. Events of Default.
Each of the following events shall constitute an “Event of Default”:

 

(a) Principal
or Interest Payment Default. The Borrower shall fail to pay any principal of or interest on the Term Loan, when and as the
same shall become due and payable, whether at the due date thereof, at a date fixed for prepayment thereof or otherwise.

 

(b) Other
Payment Defaults. Any Obligor shall fail to pay any Obligation (other than an amount referred to in Section 11.01(a)) when
and as the same shall become due and payable, and such failure shall continue unremedied for a period of three (3) Business Days.

 

(c) Representations
and Warranties. Any representation or warranty made or deemed made by or on behalf of any Obligor in this Agreement or any
other Loan Document or any amendment or modification hereof or thereof, or in any report, certificate, financial statement or other
document furnished pursuant to or in connection with this Agreement or any other Loan Document or any amendment or modification
hereof or thereof, shall: (i) prove to have been incorrect when made or deemed made to the extent that such representation or warranty
contains any materiality or Material Adverse Effect qualifier; or (ii) prove to have been incorrect in any material respect when
made or deemed made to the extent that such representation or warranty does not otherwise contain any materiality or Material Adverse
Effect qualifier.

 

(d) Certain
Covenants. Any Obligor shall fail to observe or perform any covenant, condition or agreement contained in Sections 8.03 (with
respect to such Obligor’s existence), 8.11, 8.12, 8.14, 8.16, 8.21, 8.22, 8.23, 8.24, 8.25, Section 9 or Section 10.

 

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(e) Other
Covenants. Any Obligor shall fail to observe or perform any covenant or agreement contained in this Agreement (other than those
specified in Section 11.01(a), (b) or (d)) or any other Loan Document, and, in the case of any failure that is capable of cure,
such failure shall continue unremedied for a period of thirty (30) or more days.

 

(f) Payment
Default on Other Indebtedness. Any Obligor or any of its Subsidiaries shall fail to make any payment (whether of principal
or interest and regardless of amount) in respect of any Material Indebtedness, when and as same shall become due and payable after
giving effect to any applicable grace or cure period as originally provided by the terms of such Indebtedness.

 

(g) Other
Defaults on Other Indebtedness. (i) Any material breach of, or “event of default” or similar event under, the Contract
governing any Material Indebtedness shall occur, or (ii) any event or condition occurs (x) that results in any Material Indebtedness
becoming due prior to its scheduled maturity or (y) that enables or permits (with or without the giving of notice, the lapse of
time or both) the holder or holders of such Material Indebtedness or any trustee or agent on its or their behalf to cause such
Material Indebtedness to become due, or to require the prepayment, repurchase, redemption or defeasance thereof, prior to its scheduled
maturity; provided that this Section 11.01(g) shall not apply to secured Indebtedness that becomes due as a result of the
voluntary sale or transfer of the property or assets securing such Material Indebtedness; provided further that if the holder
or holders of such Material Indebtedness or any trustee or agent on its or their behalf waives any such event or condition within
the time period set forth therein, then such event or condition shall not be an Event of Default hereunder.

 

(h) Reserved.

 

(i) Insolvency,
Bankruptcy, Etc. (i) Any Obligor or any of its Subsidiaries generally does not pay its debts as the same become due or admits
in writing its inability to pay its debts generally; (ii) any Obligor or any of its Subsidiaries institutes any Insolvency Proceeding;
(iii) any Obligor or any of its Subsidiaries takes any corporate action to approve, effect, consent to or authorize any of the
actions described in Section 11.01(i)(ii); or (iv) any Insolvency Proceeding is filed against any Obligor or any of its Subsidiaries
and, such Insolvency Proceeding continues undismissed, or unstayed and in effect, for a period of sixty (60) days after the institution
thereof.

 

(j) Judgments.
One (1) or more judgments for the payment of money in an aggregate amount in excess of $1,000,000 (to the extent not covered by
independent third party insurance as to which the insurer has been notified of the potential claim and does not dispute coverage)
shall be rendered against any Obligor or any of its Subsidiaries or any combination thereof and the same shall remain undismissed,
unsatisfied or undischarged for a period of sixty (60) consecutive calendar days during which execution shall not be effectively
stayed, or any action shall be legally taken by a judgment creditor to attach or levy upon any assets of any Obligor to enforce
any such judgment.

 

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(k) ERISA
and Pension Plans. An ERISA Event shall have occurred that, in the reasonable determination of the Administrative Agent, when
taken together with all other ERISA Events that have occurred, would reasonably be expected to result in the imposition of a Lien
(other than a Permitted Lien) under ERISA or Code Section 430(k) on a material portion of the assets or property of any Obligor
or any of its Subsidiaries or have a Material Adverse Effect.

 

(l) Change
of Control, Etc. A Change of Control shall have occurred.

 

(m) Material
Adverse Change. A Material Adverse Change shall have occurred.

 

(n) Impairment
of Security, Etc. If any of the following events occurs: (i) Any Lien created by any of the Security Documents, shall at
any time not constitute a valid and perfected Lien on the applicable Collateral in favor of the Secured Parties, free and
clear of all other Liens (other than Permitted Liens or other Liens on Collateral not exceeding $100,000 in the aggregate) to
the extent required by the Loan Documents, except due to the action or inaction of the Administrative Agent, (ii) except for
expiration in accordance with its terms, any of the Security Documents or any Guarantee of any of the Obligations (including
that contained in Section 12) shall for whatever reason cease to be in full force and effect, or (iii) any Obligor shall,
directly or indirectly, contest in any manner such effectiveness, validity, binding nature or enforceability of any such Lien
or any Loan Document.

 

(o) Regulatory
Matters, Etc. (i) The FDA or any other Regulatory Authority initiates enforcement action against, or issues a warning letter
with respect to, any Obligor or any of its Subsidiaries, or the manufacturing facilities therefore, that causes such Person the
loss of more than ten percent (10%) of the Borrower’s revenue for the twelve(12) month period following such enforcement
action as compared to the same period ending on the same date in the prior period, or (ii) any Obligor enters into a settlement
agreement with the FDA or any other Regulatory Authority that results in aggregate liability as to any single or related series
of transactions, incidents or conditions, in excess of $500,000 to the extent not covered by insurance.

 

(p) Other
Defaults under the Sanofi Documents. Any material breach of, or “event of default” or similar event under any Sanofi
Document shall occur that is not cured or waived within any grace period that may be set forth therein.

 

(q) Transfer
of Mortgaged Premises. The Mortgaged Premises or any part thereof shall be sold, transferred, or conveyed, whether voluntarily
or involuntarily, by operation of law or otherwise, except for sales of obsolete, worn out or unusable fixtures or personal property
which are concurrently replaced with similar fixtures or personal property at least equal in quality and condition to those sold
and owned by Borrower free of any lien, charge or encumbrance other than the lien hereof.

 

(r) Abandonment.
The Mortgaged Premises are abandoned.

 

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Section 11.02. Remedies. Upon the
occurrence of any Event of Default (other than an Event of Default described in Section 11.01(i)), then, and in every such event,
and at any time thereafter during the continuance of such event, the Administrative Agent may, by notice to the Borrower, declare
the Term Loan then outstanding to be due and payable in whole (or in part, in which case any principal not so declared to be due
and payable may thereafter be declared to be due and payable), and thereupon the principal of the Term Loan so declared to be due
and payable, together with accrued interest thereon and all fees and other Obligations, shall become due and payable immediately
(in the case of the Term Loan, at the Prepayment Price therefor), without presentment, demand, protest or other notice of any kind,
all of which are hereby waived by each Obligor; and in case of an Event of Default described in Section 11.01(i), the principal
of the Term Loan then outstanding, together with accrued interest thereon and all fees and other Obligations, shall automatically
become due and payable immediately (in the case of the Term Loan, at the Prepayment Price therefor), without presentment, demand,
protest or other notice of any kind, all of which are hereby waived by each Obligor.

 

Section 11.03. Additional
Remedies. Upon the occurrence and during the continuance of any Event of Default, (a) if any Obligor or any of its
Subsidiaries shall be in default under a Material Agreement, the Lenders shall have the right (but not the obligation) to
cause the default or defaults under such Material Agreement to be remedied (including without limitation by paying any unpaid
amount thereunder) and otherwise exercise any and all rights of such Obligor or Subsidiary, as the case may be, thereunder,
as may be necessary to prevent or cure any default and (b) without limiting the foregoing, upon any such default, each
Obligor shall promptly execute, acknowledge and deliver to the Lenders such instruments as may reasonably be required of such
Obligor to permit the Lenders to cure any default under the applicable Material Agreement or permit the Lenders to take such
other action required to enable the Lenders to cure or remedy the matter in default and preserve the interests of the
Lenders. Any amounts paid by the Lenders pursuant to and in accordance with this Section 11.03 shall be payable on demand by
the Obligors, shall accrue interest at the Default Rate if not paid on demand and shall constitute “Obligations”.

 

In furtherance of and in no way limiting
the foregoing, each of the authorized representatives of the Administrative Agent is hereby irrevocably made, constituted and appointed
the true and lawful attorney for Borrower and the other Obligors (without requiring any of them to act as such) with full power
of substitution after the occurrence and during the continuance of an Event of Default to advance funds in excess of the Commitments
to pay all amounts necessary under the Sanofi Documents in order to release Sanofi’s lien on the Mortgaged Premises and to
terminate the S/I Deed of Trust and the S/I Warranty and Reverter Deed; it being understood and agreed that this power of attorney
in this Section 11.03 shall be a power coupled with an interest and cannot be revoked. All amounts advanced by the Administrative
Agent or any Lender on behalf of the Administrative Agent pursuant to this Section 11.03 shall automatically and without further
action be added to the outstanding principal amount of the Term Loan and shall be a “Term Loan” for purposes of this
Agreement and the other Loan Documents.

 

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Section 11.04. Prepayment Premium
and Prepayment Price. For the avoidance of doubt, (x) the applicable Prepayment
Premium (as a component of the Prepayment Price) shall be due and payable at any time the Closing Date Term Loan becomes due
and payable in full prior to the Maturity Date in accordance with the terms hereof and (y) the Exit Fee shall be due and
payable at any time the First Amendment Term Loan becomes due and payable in full prior to the First Amendment Maturity Date
in accordance with the terms hereof, in the case of each of clause (x) and (y) above, whether due to acceleration pursuant to
the terms of this Agreement (in which case it shall be due immediately, upon the giving of notice to the Borrower or
automatically by operation of law or otherwise in accordance with Section 11.02) (including, without limitation, on account
of any bankruptcy filing). In view of the impracticability and extreme difficulty of ascertaining the actual amount of
damages to the Lenders or profits lost by the Lenders as a result of such acceleration, and by mutual agreement of the
parties as to a reasonable estimation and calculation of the lost profits or damages of the Lenders, the Prepayment Premium
and the Exit Fee, as applicable, shall be due and payable upon such date. Each Obligor hereby waives any defense to payment,
whether such defense may be based in public policy, ambiguity, or otherwise. The Obligors and the Lenders acknowledge and
agree that any Prepayment Premium or Exit Fee due and payable in accordance with this Agreement shall not constitute
unmatured interest, whether under Section 5.02(b)(3) of the Bankruptcy Code or otherwise. Each Obligor further acknowledges
and agrees, and waives any argument to the contrary, that payment of such amount does not constitute a penalty or an
otherwise unenforceable or invalid obligation.

 

Section 12. Guarantee.

 

Section 12.01. The Guarantee. Parent
and the Subsidiary Guarantors hereby jointly and severally guarantee to the Administrative Agent and the Lenders, and their successors
and assigns, the prompt payment in full when due (whether at stated maturity, by acceleration or otherwise) of the principal of
and interest on the Term Loan, all fees and other amounts and Obligations from time to time owing to the Administrative Agent and
the Lenders by the Borrower and each other Obligor under this Agreement or under any other Loan Document, in each case strictly
in accordance with the terms hereof and thereof (such obligations being herein collectively called the “Guaranteed Obligations”).
Parent and the Subsidiary Guarantors hereby further jointly and severally agree that if the Borrower or any other Obligor shall
fail to pay in full when due (whether at stated maturity, by acceleration or otherwise) any of the Guaranteed Obligations, Parent
and the Subsidiary Guarantors will promptly pay the same, without any demand or notice whatsoever, and that in the case of any
extension of time of payment or renewal of any of the Guaranteed Obligations, the same will be promptly paid in full when due (whether
at extended maturity, by acceleration or otherwise) in accordance with the terms of such extension or renewal.

 

Section 12.02. Obligations Unconditional.
The obligations of Parent and the Subsidiary Guarantors under Section 12.01 are absolute and unconditional, joint and several,
irrespective of the value, genuineness, validity, regularity or enforceability of the obligations of the Borrower under this Agreement
or any other agreement or instrument referred to herein, or any substitution, release or exchange of any other guarantee of or
security for any of the Guaranteed Obligations, and, to the fullest extent permitted by Law, irrespective of any other circumstance
whatsoever that might otherwise constitute a legal or equitable discharge or defense of a surety or guarantor, it being the intent
of this Section 12.02 that the obligations of Parent and the Subsidiary Guarantors hereunder shall be absolute and unconditional,
joint and several, under any and all circumstances. Without limiting the generality of the foregoing, it is agreed that the occurrence
of any one or more of the following shall not alter or impair the liability of Parent or the Subsidiary Guarantors hereunder, which
shall remain absolute and unconditional as described above:

 

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(a) at
any time or from time to time, without notice to Parent or the Subsidiary Guarantors, the time for any performance of or compliance
with any of the Guaranteed Obligations shall be extended, or such performance or compliance shall be waived;

 

(b) any
of the acts mentioned in any of the provisions of this Agreement or any other agreement or instrument referred to herein shall
be done or omitted;

 

(c) the
maturity of any of the Guaranteed Obligations shall be accelerated, or any of the Guaranteed Obligations shall be modified, supplemented
or amended in any respect, or any right under this Agreement or any other agreement or instrument referred to herein shall be waived
or any other guarantee of any of the Guaranteed Obligations or any security therefor shall be released or exchanged in whole or
in part or otherwise dealt with; or

 

(d) any
lien or security interest granted to, or in favor of, the Secured Parties as security for any of the Guaranteed Obligations shall
fail to be perfected.

 

Parent and the Subsidiary Guarantors hereby
expressly waive diligence, presentment, demand of payment, protest and all notices whatsoever, and any requirement that the Administrative
Agent or any Lender exhaust any right, power or remedy or proceed against the Borrower under this Agreement or any other agreement
or instrument referred to herein, or against any other Person under any other guarantee of, or security for, any of the Guaranteed
Obligations.

 

Section 12.03. Reinstatement. The
obligations of Parent and the Subsidiary Guarantors under this Section 12 shall be automatically reinstated if and to the extent
that for any reason any payment by or on behalf of the Borrower in respect of the Guaranteed Obligations is rescinded or must be
otherwise restored by any holder of any of the Guaranteed Obligations, whether as a result of any proceedings in bankruptcy or
reorganization or otherwise, and Parent and the Subsidiary Guarantors jointly and severally agree that they will indemnify the
Administrative Agent and the Lenders on demand for all reasonable costs and expenses (including fees of counsel) incurred by such
Persons in connection with such rescission or restoration, including any such costs and expenses incurred in defending against
any claim alleging that such payment constituted a preference, fraudulent transfer or similar payment under any bankruptcy, insolvency
or similar Law.

 

Section 12.04. Subrogation. Parent
and the Subsidiary Guarantors hereby jointly and severally agree that, until the payment and satisfaction in full of all Guaranteed
Obligations and the expiration and termination of the Commitments, they shall not exercise any right or remedy arising by reason
of any performance by them of their guarantee in Section 12.01, whether by subrogation or otherwise, against the Borrower or any
other guarantor of any of the Guaranteed Obligations or any security for any of the Guaranteed Obligations.

 

Section
12.05. Remedies. Parent and the Subsidiary Guarantors jointly and severally agree that, as between Parent and the
Subsidiary Guarantors, on one hand, and the Administrative Agent and the Lenders, on the other hand, the obligations of the
Borrower under this Agreement and under the other Loan Documents may be declared to be forthwith due and payable as provided
in Section 11 (and shall be deemed to have become automatically due and payable in the circumstances provided in Section 11)
for purposes of Section 12.01 notwithstanding any stay, injunction or other prohibition preventing such declaration (or such
obligations from becoming automatically due and payable) as against the Borrower and that, in the event of such declaration
(or such obligations being deemed to have become automatically due and payable), such obligations (whether or not due and
payable by the Borrower) shall forthwith become due and payable by Parent and the Subsidiary Guarantors for purposes of
Section 12.01.

 

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Section 12.06. Instrument for the Payment
of Money. Parent and each Subsidiary Guarantor hereby acknowledges that the guarantee in this Section 12 constitutes an instrument
for the payment of money, and consents and agrees that the Administrative Agent and the Lenders, at their sole option, in the event
of a dispute by Parent or such Subsidiary Guarantor in the payment of any moneys due hereunder, shall have the right to proceed
by motion for summary judgment in lieu of complaint pursuant to N.Y. Civ. Prac. L&R § 3213.

 

Section 12.07. Continuing Guarantee.
The guarantee in this Section 12 is a continuing guarantee, and shall apply to all Guaranteed Obligations whenever arising.

 

Section 12.08. Rights of Contribution.
Parent and the Subsidiary Guarantors hereby agree, as between themselves, that if Parent or any Subsidiary Guarantor shall become
an Excess Funding Guarantor (as defined below) by reason of the payment by Parent or such Subsidiary Guarantor of any Guaranteed
Obligations, Parent and/or each other Subsidiary Guarantor shall, on demand of such Excess Funding Guarantor (but subject to the
next sentence), pay to such Excess Funding Guarantor an amount equal to Parent’s or such Subsidiary Guarantor’s Fair
Share (as defined below and determined, for this purpose, without reference to the properties, debts and liabilities of such Excess
Funding Guarantor) of the Excess Payment (as defined below) in respect of such Guaranteed Obligations. The payment obligation of
Parent or a Subsidiary Guarantor to any Excess Funding Guarantor under this Section 12.08 shall be subordinate and subject in right
of payment to the prior payment in full of the obligations of Parent or such Subsidiary Guarantor under the other provisions of
this Section 12 and such Excess Funding Guarantor shall not exercise any right or remedy with respect to such excess until payment
and satisfaction in full of all of such obligations.

 

For purposes of this Section 12.08,
(i) “Excess Funding Guarantor” means, in respect of any Guaranteed Obligations, Parent or a Subsidiary
Guarantor that has paid an amount in excess of its Fair Share of such Guaranteed Obligations, (ii) “Excess
Payment” means, in respect of any Guaranteed Obligations, the amount paid by an Excess Funding Guarantor in excess
of its Fair Share of such Guaranteed Obligations and (iii) “Fair Share” means, for Parent or any
Subsidiary Guarantor, the ratio (expressed as a percentage) of (x) the amount by which the aggregate present fair saleable
value of all properties of Parent or such Subsidiary Guarantor (excluding any shares of stock of any other Subsidiary
Guarantor) exceeds the amount of all the debts and liabilities of Parent or such Subsidiary Guarantor (including contingent,
subordinated, unmatured and unliquidated liabilities, but excluding the obligations of Parent or such Subsidiary Guarantor
hereunder and any obligations of any other Subsidiary Guarantor that have been guaranteed by Parent or such Subsidiary
Guarantor) to (y) the amount by which the aggregate fair saleable value of all properties of all of Parent and the Subsidiary
Guarantors exceeds the amount of all the debts and liabilities (including contingent, subordinated, unmatured and
unliquidated liabilities, but excluding the obligations of the Borrower, Parent and the Subsidiary Guarantors hereunder and
under the other Loan Documents) of all of Parent and the Subsidiary Guarantors, determined (A) with
respect to Parent or any Subsidiary Guarantor that is a party hereto on the Closing Date, as of the Closing Date, and (B)
with respect to any other Subsidiary Guarantor, as of the date such Subsidiary Guarantor becomes a Subsidiary Guarantor
hereunder.

 

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Section 12.09. General Limitation on
Guarantee Obligations. In any action or proceeding involving any provincial, territorial or state corporate law, or any state
or federal bankruptcy, insolvency, reorganization or other law affecting the rights of creditors generally, if the obligations
of Parent or any Subsidiary Guarantor under Section 12.01 would otherwise, taking into account the provisions of Section 12.08,
be held or determined to be void, invalid or unenforceable, or subordinated to the claims of any other creditors, on account of
the amount of its liability under Section 12.01, then, notwithstanding any other provision hereof to the contrary, the amount of
such liability shall, without any further action by Parent or such Subsidiary Guarantor, the Administrative Agent, any Lender or
any other Person, be automatically limited and reduced to the highest amount that is valid and enforceable and not subordinated
to the claims of other creditors as determined in such action or proceeding.

 

Section
13. Administrative Agent.

 

Section 13.01. Appointment. Each
of the Lenders hereby irrevocably appoints Perceptive Credit Holdings II, LP, a Delaware limited partnership, to act on its behalf
as the Administrative Agent hereunder and under the other Loan Documents and authorizes the Administrative Agent to take such actions
on its behalf and to exercise such powers as are delegated to the Administrative Agent by the terms hereof or thereof, together
with such actions and powers as are reasonably incidental thereto. The provisions of this Section 13 are solely for the benefit
of the Administrative Agent and the Lenders, and neither the Borrower nor any other Obligor will have rights as a third-party beneficiary
of any of such provisions. It is understood and agreed that the use of the term “agent” herein or in any other Loan
Documents (or any other similar term) with reference to the Administrative Agent is not intended to connote any fiduciary or other
implied (or express) obligations arising under agency doctrine of any applicable Law. Instead, such term is used as a matter of
market custom, and is intended to create or reflect only an administrative relationship between contracting parties.

 

Section 13.02. Rights as a Lender.
The Person serving as the Administrative Agent hereunder will have the same rights and powers in its capacity as a Lender as any
other Lender and may exercise the same as though it were not the Administrative Agent, and the term “Lender” or “Lenders”
will, unless otherwise expressly indicated or unless the context otherwise requires, include the Person serving as the Administrative
Agent hereunder in its individual capacity to the extent such Person is a Lender. Such Person and its Affiliates may accept deposits
from, lend money to, own securities of, act as the financial advisor or in any other advisory capacity for, and generally engage
in any kind of business with, the Borrower, the other Obligors or any other Subsidiaries or Affiliates of the Obligors as if such
Person were not the Administrative Agent hereunder and without any duty to account therefor to the Lenders.

 

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Section 13.03. Exculpatory Provisions.
(a) The Administrative Agent will not have any duties or obligations except those expressly set forth herein and in the other Loan
Documents, and its duties hereunder are administrative in nature. Without limiting the generality of the foregoing, the Administrative
Agent:

 

(i) will
not be subject to any fiduciary or other implied duties, regardless of whether a Default has occurred and is continuing;

 

(ii) will
not have any duty to take any discretionary action or exercise any discretionary powers, except discretionary rights and powers
expressly contemplated hereby or by the other Loan Documents that the Administrative Agent is required to exercise as directed
in writing by the Majority Lenders (or such other number or percentage of the Lenders as will be expressly provided for herein
or in the other Loan Documents); provided that the Administrative Agent will not be required to take any action that, in
its opinion or the opinion of its counsel, may expose the Administrative Agent to liability or that is contrary to any Loan Document
or applicable Law, including any action that may be in violation of the automatic stay under any Insolvency Proceeding; and

 

(iii) will
not, except as expressly set forth herein and in the other Loan Documents, have any duty to disclose, and will not be liable for
the failure to disclose, any information relating to the Obligors or any of its Subsidiaries or Affiliates that is communicated
to or obtained by the Person serving as the Administrative Agent or any of its Affiliates in any capacity.

 

(b) The
Administrative Agent will not be liable for any action taken or not taken by it (i) with
the consent or at the request of the Majority Lenders (or such other number or percentage of the Lenders as will be
necessary, or as the Administrative Agent believes in good faith will be necessary, under the circumstances), or (ii) in the
absence of its own gross negligence or willful misconduct as determined by a court of competent jurisdiction by final and
nonappealable judgment. The Administrative Agent will be deemed not to have knowledge of any Default unless and until notice
describing such Default is given to the Administrative Agent in writing by the Borrower or a Lender.

 

(c) The
Administrative Agent will not be responsible for or have any duty to ascertain or inquire into (i) any statement, warranty or representation
made in or in connection with this Agreement or any other Loan Document, (ii) the contents of any certificate, report or other
document delivered hereunder or thereunder or in connection herewith or therewith, (iii) the performance or observance of any of
the covenants, agreements or other terms or conditions set forth herein or therein or the occurrence of any Default, (iv) the validity,
enforceability, effectiveness or genuineness of this Agreement, any other Loan Document or any other agreement, instrument or document
or (v) the satisfaction of any condition set forth in Section 6 or elsewhere herein, other than to confirm receipt of items expressly
required to be delivered to the Administrative Agent.

 

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Section 13.04. Reliance by
Administrative Agent. The Administrative Agent will be entitled to rely upon, and will not incur any liability for
relying upon, any notice, request, certificate, consent, statement, instrument, document or other writing (including any
electronic message, Internet or intranet website posting or other distribution) believed by it to be genuine and to have been
signed, sent or otherwise authenticated by the proper Person. The Administrative Agent also may rely upon any statement made
to it orally or by telephone and believed by it to have been made by the proper Person, and will not incur any liability for
relying thereon. In determining compliance with any condition hereunder to the making of the Term Loan that by its terms must
be fulfilled to the satisfaction of a Lender, the Administrative Agent may presume that such condition is satisfactory to
such Lender unless the Administrative Agent has received notice to the contrary from such Lender prior to the making of such
Term Loan. The Administrative Agent may consult with legal counsel (who may be counsel for the Borrower), independent
accountants and other experts selected by it, and will not be liable for any action taken or not taken by it in accordance
with the advice of any such counsel, accountants or experts.

 

Section 13.05. Delegation of Duties.
The Administrative Agent may perform any and all of its duties and exercise its rights and powers hereunder or under any other
Loan Document by or through any one or more sub-agents appointed by the Administrative Agent. The Administrative Agent and any
such sub-agent may perform any and all of its duties and exercise its rights and powers by or through their respective Affiliates.
The exculpatory provisions of this Section will apply to any such sub-agent and to the Affiliates of the Administrative Agent and
any such sub-agent, and will apply to their respective activities in connection with the syndication of the facility as well as
activities as Administrative Agent. The Administrative Agent will not be responsible for the negligence or misconduct of any sub-agents
except to the extent that a court of competent jurisdiction determines in a final and nonappealable judgment that the Administrative
Agent acted with gross negligence or willful misconduct in the selection of such sub-agents.

 

Section 13.06. Resignation of Agent.
(a) The Administrative Agent may at any time give notice of its resignation to the Lenders and the Borrower, which notice shall
set forth the effective date of such resignation (the “Resignation Effective Date”), such date not to be earlier
than the thirtieth (30th) day following the date of such notice. The Majority Lenders and the Borrower shall mutually agree upon
a successor to the Administrative Agent. If the Majority Lenders and the Borrower are unable to so mutually agree and no successor
shall have been appointed within twenty-five (25) days after the retiring Administrative Agent gives notice of its resignation,
then the retiring Administrative Agent may (but will not be obligated to), on behalf of the Lenders, appoint a successor Administrative
Agent it shall designate (in its reasonable discretion after consultation with the Borrower and the Majority Lenders). Whether
or not a successor has been appointed, such resignation will become effective in accordance with such notice on the Resignation
Effective Date.

 

(b) With
effect from the Resignation Effective Date (i) the retiring Administrative Agent will be discharged from its duties and
obligations hereunder and under the other Loan Documents (except that in the case of any Collateral held by the
Administrative Agent on behalf of the Lenders under any of the Loan Documents, the retiring Administrative Agent will
continue to hold such Collateral until such time as a successor Administrative Agent is appointed) and (ii) except for any
indemnity payments owed to the retiring Administrative Agent, all payments, communications and determinations provided to be
made by, to or through the Administrative Agent will instead be made by or to each Lender directly, until such time, if any,
as the Majority Lenders appoint a successor Administrative Agent as provided for above. Upon the acceptance of a
successor’s appointment as Administrative Agent hereunder, such successor will succeed to and become vested with all of
the rights, powers, privileges and duties of the retiring Administrative Agent (other than any rights to indemnity payments
owed to the retiring Administrative Agent), and the retiring Administrative Agent will be discharged from all of its duties
and obligations hereunder or under the other Loan Documents. The fees payable by the Borrower to a successor Administrative
Agent will be the same as those payable to its predecessor unless otherwise agreed between the Borrower and such successor.
After the retiring Administrative Agent’s resignation hereunder and under the other Loan Documents, the provisions of
this Section 13 and Sections 14.03 and 14.04 will continue in effect for the benefit of such retiring Administrative Agent,
its sub-agents and their respective Affiliates in respect of any actions taken or omitted to be taken by any of them while
the retiring Administrative Agent was acting as Administrative Agent.

 

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Section 13.07. Non-Reliance on Administrative
Agent and Other Lenders. Each Lender acknowledges that it has, independently and without reliance upon the Administrative Agent
or any other Lender or any of their Affiliates and based on such documents and information as it has deemed appropriate, made its
own credit analysis and decision to enter into this Agreement. Each Lender also acknowledges that it will, independently and without
reliance upon the Administrative Agent or any other Lender or any of their Affiliates and based on such documents and information
as it will from time to time deem appropriate, continue to make its own decisions in taking or not taking action under or based
upon this Agreement, any other Loan Document or any related agreement or any document furnished hereunder or thereunder.

 

Section 13.08. Administrative Agent
May File Proofs of Claim. In case of the pendency of any Insolvency Proceeding or any other judicial proceeding relative to
the Borrower, the Administrative Agent (irrespective of whether the principal of the Term Loan will then be due and payable as
herein expressed or by declaration or otherwise and irrespective of whether the Administrative Agent has made any demand on the
Borrower) will be entitled and empowered (but not obligated), by intervention in such proceeding or otherwise:

 

(a) to
file and prove a claim for the whole amount of the principal and interest owing and unpaid in respect of the Term Loan and all
other Obligations that are owing and unpaid hereunder or under any other Loan Document and to file such other documents as may
be necessary or advisable in order to have the claims of the Lenders and the Administrative Agent (including any claim for the
reasonable compensation, expenses, disbursements and advances of the Lenders and the Administrative Agent and their respective
agents and counsel and all other amounts due the Lenders and the Administrative Agent under this Agreement or any other Loan Document)
allowed in such judicial proceeding; and

 

(b) to
collect and receive any monies or other property payable or deliverable on any such claims and to distribute the same.

 

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Any custodian, receiver, assignee,
trustee, liquidator, sequestrator or other similar official in any such judicial proceeding is hereby authorized by each
Lender to make any payments of the type described above in this Section 13.08 to the Administrative Agent and, in the event
that the Administrative Agent consents to the making of such payments directly to the Lenders, to pay to the Administrative
Agent any amount due for the reasonable compensation, expenses, disbursements and advances of the Administrative Agent and
its agents and counsel, and any other amounts due the Administrative Agent under this Agreement or any other Loan
Document.

 

Section 13.09. Collateral and
Guaranty Matters; Appointment of Collateral Agent. (a) Without limiting the
provisions of Section 13.08, the Lenders irrevocably agree as follows:

 

(i) the
Administrative Agent is authorized, at its option and in its discretion, to release any Lien on any property granted to or held
by the Administrative Agent under any Loan Document (A) on the date when all Obligations have been satisfied in full in cash (other
than Warrant Obligations and contingent obligations as to which no claims have been asserted), (B) that is sold or otherwise disposed
of or to be sold or otherwise disposed of as part of or in connection with any sale or other disposition permitted under the Loan
Documents, or (C) subject to Sections 14.01 and 14.04, if approved, authorized or ratified in writing by the Majority Lenders;
and

 

(ii) the
Administrative Agent is authorized, at its option and discretion, to release any Subsidiary Guarantor from its obligations hereunder
if such Person ceases to be a Subsidiary as a result of a transaction permitted under the Loan Documents.

 

Upon request by the Administrative Agent
at any time, each Lender will confirm in writing the Administrative Agent’s authority to release or subordinate its interest
in particular types or items of Collateral, or to release any Subsidiary Guarantor from its obligations under its guaranty pursuant
to this Section 13.09.

 

(b) The
Administrative Agent will not be responsible for or have a duty to ascertain or inquire into any representation or warranty regarding
the existence, value or collectability of the Collateral, the existence, priority or perfection of the Administrative Agent’s
Lien thereon, or any certificate prepared by any Obligor in connection therewith, nor will the Administrative Agent be responsible
or liable to the Lenders for any failure to monitor or maintain any portion of the Collateral.

 

(c) Each
Lender hereby appoints the Administrative Agent as its collateral agent under each of the Security Documents and agrees that,
in so acting, the Administrative Agent will have all of the rights, protections, exculpations, indemnities and other benefits
provided to the Administrative Agent under this Agreement, and hereby authorizes and directs the Administrative Agent, on
behalf of such Lender and all Lenders, without the necessity of any notice to or further consent from any of the Lenders,
from time to time to (i) take any action with respect to any Collateral or any Security Document which may be necessary to
perfect and maintain perfected the Liens on the Collateral granted pursuant to any such Security Document or protect and
preserve the Administrative Agent’s ability to enforce the Liens or realize upon the Collateral, (ii) act as collateral
agent for each Secured Party for purposes of acquiring, holding, enforcing and perfecting all Liens created by the Loan
Documents and all other purposes stated therein, (iii) enter into intercreditor or subordination agreements, as the case may
be, in connection with Indebtedness permitted pursuant to Section 9.01(n), (iv) enter into non-disturbance or similar
agreements in connection with licensing agreements and arrangements permitted by this Agreement and the other Loan Documents
and (v) otherwise to take or refrain from taking any and all action that the Administrative Agent shall deem necessary or
advisable in fulfilling its role as collateral agent under any of the Security Documents.

 

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Section
14. Miscellaneous.

 

Section 14.01. No Waiver. No failure
on the part of the Administrative Agent or the Lenders to exercise and no delay in exercising, and no course of dealing with respect
to, any right, power or privilege under any Loan Document shall operate as a waiver thereof, nor shall any single or partial exercise
of any right, power or privilege under any Loan Document preclude any other or further exercise thereof or the exercise of any
other right, power or privilege. The remedies provided herein are cumulative and not exclusive of any remedies provided by law.

 

Section 14.02. Notices. All notices,
requests, instructions, directions and other communications provided for herein (including any modifications of, or waivers, requests
or consents under, this Agreement) shall be given or made in writing (including by telecopy or email) delivered, if to the Borrower,
another Obligor, the Administrative Agent or any Lender, to its address specified on the signature pages hereto or its Guarantee
Assumption Agreement, as the case may be, or at such other address as shall be designated by such party in a written notice to
the other parties. Except as otherwise provided in this Agreement, all such communications shall be deemed to have been duly given
upon receipt of a legible copy thereof, in each case given or addressed as aforesaid. All such communications provided for herein
by telecopy shall be confirmed in writing promptly after the delivery of such communication (it being understood that non-receipt
of written confirmation of such communication shall not invalidate such communication).

 

Section 14.03. Expenses, Indemnification,
Etc.

 

(a) Closing
Expenses. The Borrower agrees to pay or reimburse the Administrative Agent and the Lenders for all of their reasonable and
documented out of pocket costs and expenses (including the reasonable and documented fees and expenses of Chapman and Cutler LLP,
special counsel to the Administrative Agent) in connection with the negotiation, preparation, execution and delivery of this Agreement
and the other Loan Documents and the making of the Term Loan.

 

(b) Other
Expenses. The Borrower agrees to pay or reimburse (i) the Administrative Agent and the Lenders for all of their reasonable
and documented out of pocket post-closing costs and expenses in connection the negotiation or preparation of any modification,
supplement or waiver of any of the terms of this Agreement or any of the other Loan Documents (whether or not consummated) and
(ii) the Administrative Agent and the Lenders for all of their out of pocket costs and expenses (including the fees and expenses
of legal counsel) in connection with any enforcement or collection proceedings resulting from the occurrence of an Event of Default.

 

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(c) Indemnification. The
Borrower hereby indemnifies the Administrative Agent, the Lenders and their respective Affiliates, directors, officers,
employees, attorneys, agents, advisors and controlling parties (each, an “Indemnified Party”) from and
against, and agrees to hold them harmless against, any and all Claims and Losses of any kind (including reasonable and
documented fees and disbursements of counsel), joint or several, that may be incurred by or asserted or awarded against any
Indemnified Party, in each case arising out of or in connection with or relating to any investigation, litigation or
proceeding or the preparation of any defense with respect thereto arising out of or in connection with or relating to this
Agreement or any of the other Loan Documents or the Transactions or any use made or proposed to be made with the proceeds of
the Term Loan, whether or not such investigation, litigation or proceeding is brought by the Borrower, any of its
shareholders or creditors, an Indemnified Party or any other Person, or an Indemnified Party is otherwise a party thereto,
and whether or not any of the conditions precedent set forth in Section 6 are satisfied or the other transactions
contemplated by this Agreement are consummated, except to the extent such Claim or Loss is found in a final, non-appealable
judgment by a court of competent jurisdiction to have resulted from such Indemnified Party’s gross negligence or
willful misconduct. No Obligor shall assert any claim against any Indemnified Party, on any theory of liability, for
consequential, indirect, special or punitive damages arising out of or otherwise relating to this Agreement or any of the
other Loan Documents or any of the Transactions or the actual or proposed use of the proceeds of the Term Loan. No Lender
shall assert any claim against Parent or any of its Subsidiaries or any of their respective directors, officers, employees,
attorneys, agents, advisors or controlling parties on any theory of liability, for consequential, indirect, special or
punitive damages arising out of or otherwise relating to this Agreement or any of the other Loan Documents or any of the
transactions contemplated hereby or thereby or the actual or proposed use of the proceeds of the Term Loan. This Section
14.03(c) shall not apply with respect to Taxes other than any Taxes that represent Claims and Losses arising from any non-Tax
claim.

 

Section 14.04. Amendments, Etc. Except
as otherwise expressly provided in this Agreement, any provision of this Agreement and any other Loan Document may be modified
or supplemented only by an instrument in writing signed by the Borrower, the Administrative Agent and the Majority Lenders; provided
that:

 

(a) any
such modification or supplement that is disproportionately adverse to any Lender as compared to other Lenders or subjects any Lender
to any additional obligation shall not be effective without the consent of such affected Lender;

 

(b) the
consent of all of the Lenders shall be required to:

 

(i) amend,
modify, discharge, terminate or waive any of the terms of this Agreement or any other Loan Document if such amendment, modification,
discharge, termination or waiver would increase the amount of the Term Loan, reduce the fees payable hereunder, reduce interest
rates or other amounts payable with respect to the Term Loan, extend any date fixed for payment of principal, interest or other
amounts payable relating to the Term Loan or extend the repayment dates of the Term Loan;

 

(ii) amend,
modify, discharge, terminate or waive any Security Document if the effect is to release a material part of the Collateral
subject thereto other than pursuant to the terms hereof or thereof; or

 

(iii) amend
this Section 14.04.

 

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Section 14.05. Successors and Assigns.

 

(a) General. This
Agreement shall be binding upon and shall inure to the benefit of the parties hereto and their respective successors and
assigns permitted hereby; provided that the neither the Borrower nor any other Obligor may assign or transfer its
rights or obligations hereunder without the prior written consent of the Administrative Agent. No Lender may assign or
otherwise transfer any of its rights or obligations hereunder or under any of the other Loan Documents except (i) to an
assignee in accordance with the provisions of Section 14.05(b), or (ii) by way of
participation in accordance with the provisions of Section 14.05(e) (and any other attempted assignment or transfer by any
party hereto shall be null and void). Nothing in this Agreement, expressed or implied, shall be construed to confer upon any
Person (other than the parties hereto, their respective successors and assigns permitted hereby, Participants to the extent
provided in Section 14.05(e) and, to the extent expressly contemplated hereby, the Indemnified Parties) any legal or
equitable right, remedy or claim under or by reason of this Agreement.

 

(b) Assignments
by Lender. Any of the Lenders may at any time assign to one or more Eligible Transferees (or, if an Event of Default has occurred
and is continuing, to any Person) all or a portion of its rights and obligations under this Agreement (including all or a portion
of the Commitment and the Term Loan at the time owing to it) and the other Loan Documents; provided that no such assignment
shall be made to the Borrower, any Affiliate of the Borrower or any employees or directors of any Obligor at any time. Subject
to the recording thereof by the Administrative Agent pursuant to Section 14.05(d), from and after the effective date specified
in each Assignment and Assumption, the assignee thereunder shall be a party to this Agreement and, to the extent of the interest
assigned by such Assignment and Assumption, have the rights and obligations of such Lender under this Agreement and the other Loan
Documents, and correspondingly the assigning Lender shall, to the extent of the interest assigned by such Assignment and Assumption,
be released from its obligations under this Agreement (and, in the case of an Assignment and Assumption covering all of the Lender’s
rights and obligations under this Agreement, such Lender shall cease to be a party hereto) and the other Loan Documents but shall
continue to be entitled to the benefits of Section 5 and Section 14.03. Any assignment or transfer by a Lender of rights or obligations
under this Agreement that does not comply with this Section 14.05(b) shall be treated for purposes of this Agreement as a sale
by such Lender of a participation in such rights and obligations in accordance with Section 14.05(e).

 

(c) Amendments
to Loan Documents. Each of the Lenders and the Obligors agrees to enter into such amendments to the Loan Documents, and such
additional Security Documents and other instruments and agreements, in each case in form and substance reasonably acceptable to
the Lenders and the Obligors, as shall reasonably be necessary to implement and give effect to any assignment made under this Section
14.05.

 

(d) Register. The
Administrative Agent shall maintain a copy of each Assignment and Assumption delivered to it pursuant to clause (b) above and
a register for the recordation of the names and addresses of the Lenders, and the Commitments of, and principal amounts (and
stated interest) of the Term Loan owing to, each Lender pursuant to the terms hereof from time to time (the “Register”).
The entries in the Register shall be conclusive absent manifest error, and the Borrower, the Administrative Agent and the
Lenders shall treat each Person whose name is recorded in the Register pursuant to the terms hereof as a Lender hereunder for
all purposes of this Agreement. The Register shall be available for inspection by the Borrower and any Lender, at any
reasonable time and from time to time upon reasonable prior notice. The Obligations under the Loan Documents (other than the
Warrant Obligations) are intended to be maintained in, and this Section shall be construed so that the Commitments and Term
Loan are at all times maintained in, “registered form” within the meaning of Section 163(f), 871(h)(2) and
881(c)(2) of the Code and any related regulations (and any other relevant or successor provisions of the Code or such
regulations).

 

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(e) Participations. Any
of the Lenders may at any time, without the consent of, or notice to, the Borrower, sell participations to any Person which
would constitute an Eligible Transferee (other than a natural person or a holding company, investment vehicle or trust for,
or owned and operated for the primary benefit of, a natural person or Parent or any of Parent’s Affiliates or
Subsidiaries) (each, a “Participant”) in all or a portion of such Lender’s rights and/or obligations
under this Agreement (including all or a portion of the Commitment and/or the Term Loan owing to it); provided that
(i) such Lender’s obligations under this Agreement shall remain unchanged, (ii) such Lender shall remain solely
responsible to the other parties hereto for the performance of such obligations and (iii) the Borrower shall continue to deal
solely and directly with such Lender in connection therewith. Any agreement or instrument pursuant to which a Lender sells
such a participation shall provide that such Lender shall retain the sole right to enforce this Agreement and to approve any
amendment, modification or waiver of any provision of this Agreement; provided that such agreement or instrument may
provide that such Lender will not, without the consent of the Participant, agree to any amendment, modification or waiver
that would (i) increase or extend the term of such Lender’s Commitment, (ii) extend the date fixed for the payment of
principal of or interest on the Term Loan or any portion of any fee hereunder payable to the Participant, (iii) reduce the
amount of any such payment of principal, or (iv) reduce the rate at which interest is payable thereon to a level below the
rate at which the Participant is entitled to receive such interest (other than with respect to default interest). The
Borrower agrees that each Participant shall be entitled to the benefits of Section 5 (subject to the requirements and
limitations therein, including the requirements of Section 5.03(f) (it being understood that the documentation required under
Section 5.03(f) shall be delivered to the participating Lender)) to the same extent as if such Participant had acquired its
interest by assignment pursuant to Section 14.05(b); provided that such Participant shall not be entitled to receive
any greater payment under Section 5 with respect to any participation, than its participating Lender would have been entitled
to receive. To the extent permitted by Law, each Participant also shall be entitled to the benefits of Section 4.03(a) as
though it were a Lender. Each Lender that sells a participation shall, acting solely for this purpose as a non-fiduciary
agent of the Borrower, maintain a register on which it enters the name and address of each Participant and the principal
amounts (and stated interest) of each Participant’s interest in the Term Loan or other obligations under the Loan
Documents (the “Participant Register”); provided that no Lender shall have any obligation to
disclose all or any portion of the Participant Register (including the identity of any Participant or any information
relating to a Participant’s interest in any commitments, loans, letters of credit or its other obligations under any
Loan Document) to any Person except to the extent that such disclosure is necessary to establish that such commitment, loan,
letter of credit or other obligation is in registered form under Section 5f.103-1(c) of the United States Treasury
Regulations. The entries in the Participant Register shall be conclusive absent manifest error, and the parties hereto shall
treat each Person whose name is recorded in the Participant Register as the owner of such participation for all purposes of
this Agreement notwithstanding any notice to the contrary.

 

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(f) Security
Interest. Notwithstanding anything to the contrary contained in this Section 14.05, a Lender may collaterally assign any of
its rights or obligations hereunder or under any of the other Loan Documents by way of pledge or collateral assignment of all or
a portion of such Lender’s rights under the Loan Documents to a Federal Reserve Bank provided that no such pledge or assignment
shall release such Lender from its obligations hereunder.

 

Section 14.06. Survival. The
obligations of the Borrower under Sections 5.01, 5.02, 5.03, 14.03 and the
obligations of Parent and the Subsidiary Guarantors under Section 12 (solely to the extent guaranteeing any of the
obligations under the foregoing Sections) shall survive the repayment of the Obligations and the termination of the
Commitment and, in the case of the Lenders’ assignment of any interest in the Commitment or the Term Loan hereunder,
shall survive, in the case of any event or circumstance that occurred prior to the effective date of such assignment, the
making of such assignment, notwithstanding that the Lenders may cease to be “Lenders” hereunder. In addition,
each representation and warranty made herein or pursuant hereto shall survive the making of such representation and
warranty.

 

Section 14.07. Captions. The table
of contents and captions and section headings appearing herein are included solely for convenience of reference and are not intended
to affect the interpretation of any provision of this Agreement.

 

Section 14.08. Counterparts. This
Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument
and any of the parties hereto may execute this Agreement by signing any such counterpart. Delivery of an executed signature page
of this Agreement by facsimile transmission or electronic transmission (in PDF format) shall be effective as delivery of a manually
executed counterpart hereof.

 

Section 14.09. Governing Law. This
Agreement and the rights and obligations of the parties hereunder shall be governed by, and construed in accordance with, the law
of the State of New York, without regard to principles of conflicts of laws that would result in the application of the laws of
any other jurisdiction; provided that Section 5-1401 of the New York General Obligations Law shall apply.

 

Section 14.10. Jurisdiction, Service
of Process and Venue.

 

(a) Submission
to Jurisdiction. Each Obligor agrees that any suit, action or proceeding with respect to this Agreement or any other Loan
Document to which it is a party or any judgment entered by any court in respect thereof may be brought initially in the
federal or state courts in New York, New York or in the courts of its own corporate domicile and irrevocably submits to the
exclusive jurisdiction of each such court for the purpose of any such suit, action, proceeding or judgment. This Section
14.10(a) is for the benefit of the Administrative Agent and the Lenders only and, as a result, neither the Administrative
Agent nor any Lender shall be prevented from taking proceedings in any other courts located in the United States with
jurisdiction, or to the extent assets of an Obligor are or may be located in a foreign jurisdiction, in such foreign
jurisdiction. To the extent allowed by any Law, the Administrative Agent and the Lenders may take concurrent proceedings in
any number of jurisdictions located in the United States and any foreign jurisdictions where the assets of any Obligor are or
may be located.

 

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(b) Alternative
Process. Nothing herein shall in any way be deemed to limit the ability of the Lenders to serve any process or summons in any
manner permitted by Law.

 

(c) Waiver
of Venue, Etc. Each Obligor irrevocably waives to the fullest extent permitted by law any objection that it may now or hereafter
have to the laying of the venue of any suit, action or proceeding arising out of or relating to this Agreement or any other Loan
Document and hereby further irrevocably waives to the fullest extent permitted by law any claim that any such suit, action or proceeding
brought in any such court has been brought in an inconvenient forum. A final judgment (in respect of which time for all appeals
has elapsed) in any such suit, action or proceeding shall be conclusive and may be enforced in any court to the jurisdiction of
which such Obligor is or may be subject, by suit upon judgment.

 

Section
14.11. Waiver of Jury Trial. Each Obligor,
the Administrative Agent
and each Lender hereby irrevocably waives, to the fullest
extent permitted by applicable law, any and all right to trial by jury in any suit,
action or proceeding arising out of or relating to this Agreement,
the other Loan Documents
or the transactions contemplated hereby or thereby.

 

Section 14.12. Waiver of Immunity.
To the extent that any Obligor may be or become entitled to claim for itself or its property or revenues any immunity on the ground
of sovereignty or the like from suit, court jurisdiction, attachment prior to judgment, attachment in aid of execution of a judgment
or execution of a judgment, and to the extent that in any such jurisdiction there may be attributed such an immunity (whether or
not claimed), such Obligor hereby irrevocably agrees not to so claim and hereby irrevocably waives such immunity with respect to
its obligations under this Agreement and the other Loan Documents.

 

Section
14.13. Entire agreement. This agreement and the other loan documents constitute the entire agreement among the parties
with respect to the subject matter hereof and thereof and supersede any and all previous agreements and understandings, oral
or written, relating to the subject matter hereof, including any confidentiality (or similar) agreements. Each Obligor
acknowledges, represents and warrants that in deciding to enter into this Agreement
and the other Loan Documents or in taking or not
taking any action hereunder or thereunder, it has not relied, and
will not rely, on any statement, representation, warranty, covenant, agreement
or understanding, whether written or oral, of or
with the lenders other than those expressly set forth in this Agreement
and the other Loan Documents.

 

Section
14.14. Severability. If any provision hereof is found by a court to be invalid or unenforceable, to the fullest extent
permitted by any applicable Law the parties agree that such invalidity or unenforceability shall not impair the validity or
enforceability of any other provision hereof.

 

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Section 14.15. No Fiduciary Relationship.
The Borrower acknowledges that the Administrative Agent and the Lenders have no fiduciary relationship with, or fiduciary duty
to, the Borrower arising out of or in connection with this Agreement or the other Loan Documents, and the relationship between
the Lenders and the Borrower is solely that of creditor and debtor. This Agreement and the other Loan Documents do not create a
joint venture among the parties.

 

Section
14.16. Confidentiality. Each Lender agrees to keep confidential all non-public information provided to it by any Obligor
pursuant to this Agreement; provided that nothing herein shall prevent any Lender from disclosing any such information
(i) to any other Lender or, subject to a written agreement to comply with the provisions of this Section 14.16, any Affiliate
of a another Lender or any prospective assignee or participant of the Term Loan permitted by and pursuant to Section 14.05(b)
or (d) that, in each case, is also subject to confidentiality provisions at least as stringent as the provisions of this
Section 14.16, (ii) subject to an agreement to comply with the provisions of this Section, to any actual or prospective
direct or indirect counterparty to any Hedging Agreement (or any professional advisor to such counterparty), (iii) to its
Affiliates employees, officers, directors, agents, attorneys, accountants, trustees and other professional advisors
(collectively, its “Related Parties”); provided that the applicable Lender shall remain liable
hereunder for any breach of this Section 14.16 by any of its Related Parties, (iv) upon the request or demand of any
Governmental Authority or any Regulatory Authority having jurisdiction over such Person or its Related Parties (including any
self-regulatory authority, such as the National Association of Insurance Commissioners), (v) in response to any order of any
court or other Governmental Authority or as may otherwise be required pursuant to any applicable Law, (vi) if required to do
so in connection with any litigation or similar proceeding, (vii) that has been publicly disclosed (other than as a result of
a disclosure in violation of this Section 14.16), (viii) on a confidential basis to the National Association of Insurance
Commissioners or any similar organization or any nationally recognized rating agency that requires access to information
about a Lender’s investment portfolio in connection with ratings issued with respect to such Lender, (ix) in connection
with the exercise of any remedy permitted hereunder or under any other Loan Document, (x) on a confidential basis to (A) any
rating agency in connection with rating Parent or its Subsidiaries or the Term Loan or (B) the CUSIP Service Bureau or any
similar agency in connection with the issuance and monitoring of CUSIP numbers of other market identifiers with respect to
the Term Loan or (xi) to any other party that is, and is permitted pursuant to the terms hereof to be, a party hereto; provided
further that, unless specifically prohibited by applicable law or court order, each Lender shall notify the Borrower of
any request by any Governmental Authority or Regulatory Authority or representative thereof (other than any such request in
connection with any examination of the financial condition or other routine examination of such Lender by such Governmental
Authority or Regulatory Authority) for disclosure of any such non-public information prior to disclosure of such information
to enable the Borrower to seek a protection order or otherwise prevent or restrict such disclosure.

 

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Section 14.17. Right of
Setoff. If an Event of Default shall have occurred and be continuing, each Lender and each of its Affiliates is hereby
authorized at any time and from time to time, to the fullest extent permitted by applicable Law, to set off and apply any and
all deposits (general or special, time or demand, provisional or final, in whatever currency) at any time held and other
obligations (in whatever currency) at any time owing by such Lender or any such Affiliate to or for the credit or the account
of the Borrower or any other Obligor against any and all of the Obligations now or hereafter existing under this Agreement or
any other Loan Document to such Lender or its Affiliates, irrespective of whether or not such Lender or Affiliate shall have
made any demand under this Agreement or any other Loan Document and although such Obligations of the Borrower or such Obligor
may be contingent or unmatured or are owed to an Affiliate of such Lender. The rights of each Lender and its Affiliates under
this Section are in addition to other rights and remedies (including other rights of setoff) that such Lender and Affiliates
may have. Each Lender agrees to notify the Borrower promptly after any such setoff and application; provided that the
failure to give such notice shall not affect the validity of such setoff and application.

 

Section 14.18. Judgment Currency.
(a) If, for the purposes of obtaining judgment in any court, it is necessary to convert a sum due hereunder in Dollars into another
currency, the parties hereto agree, to the fullest extent permitted by Law, that the rate of exchange used shall be that at which,
in accordance with normal banking procedures, the Administrative Agent could purchase Dollars with such other currency at the buying
spot rate of exchange in the New York foreign exchange market on the Business Day immediately preceding that on which any such
judgment, or any relevant part thereof, is given.

 

(b) The obligations of the Obligors in
respect of any sum due to the Administrative Agent hereunder and under the other Loan Documents shall, notwithstanding any judgment
in a currency other than Dollars, be discharged only to the extent that on the Business Day following receipt by the Administrative
Agent of any sum adjudged to be so due in such other currency the Administrative Agent may, in accordance with normal banking procedures,
purchase Dollars with such other currency. If the amount of Dollars so purchased is less than the sum originally due to the Administrative
Agent in Dollars, the Borrower agrees, to the fullest extent that it may effectively do so, as a separate obligation and notwithstanding
any such judgment, to indemnify the Administrative Agent against such loss. If the amount of Dollars so purchased exceeds the sum
originally due to the Administrative Agent in Dollars, the Administrative Agent shall remit such excess to the Borrower.

 

Section 14.19. USA PATRIOT Act.
The Administrative Agent and the Lenders hereby notify the Obligors that pursuant to the requirements of the USA PATRIOT Act (Title
III of Pub. L. 107-56 (signed into law October 26, 2001)) (the “Act”), they are required to obtain, verify and
record information that identifies the Obligors, which information includes the name and address of each Obligor and other information
that will allow such Person to identify such Obligor in accordance with the Act.

 

Section
14.20. Release of Collateral and Guarantees; Non-Disturbance Agreements. (a) The
Administrative Agent hereby agrees, at the sole expense of the Borrower, to execute any documents, releases, terminations and
agreements reasonably requested by the Borrower (i) to release any Lien on any Collateral (A) on the date when all
Obligations (other than Warrant Obligations and contingent obligations as to which no claims have been asserted) have been
satisfied in full in cash, (B) that is sold or otherwise disposed of or to be sold or otherwise disposed of as part of or in
connection with an Asset Sale permitted pursuant to Section 9.09 or (C) subject to Sections 14.01 and 14.04, if approved,
authorized or ratified in writing by the Administrative Agent and (ii) to release any Subsidiary Guarantor from its
obligations as a guarantor hereunder if such Person ceases to be a Subsidiary as a result a transaction permitted under the
Loan Documents.

 

    -89-

     

    

 

(b) The
Administrative Agent hereby agrees to, and each Lender hereby agrees that Administrative Agent may, enter into non-disturbance
or similar agreements in connection with licensing agreements permitted by this Agreement or any other Loan Document, in each case
in form and substance reasonably satisfactory to the Administrative Agent and the counterparty or counterparties to the licensing
agreements.

 

Section 14.21. Acknowledgement and Consent
to Bail-In of EEA Financial Institutions. Notwithstanding anything to the contrary in any Loan Document or in any other agreement,
arrangement or understanding among any such parties, each party hereto acknowledges that any liability of any EEA Financial Institution
arising under any Loan Document, to the extent such liability is unsecured, may be subject to the write-down and conversion powers
of an EEA Resolution Authority and agrees and consents to, and acknowledges and agrees to be bound by:

 

(a) the
application of any Write-Down and Conversion Powers by an EEA Resolution Authority to any such liabilities arising hereunder which
may be payable to it by any party hereto that is an EEA Financial Institution; and

 

(b) the
effects of any Bail-In Action on any such liability, including, if applicable:

 

(i) a
reduction in full or in part or cancellation of any such liability;

 

(ii) a
conversion of all, or a portion of, such liability into shares or other instruments of ownership in such EEA Financial Institution,
its parent undertaking, or a bridge institution that may be issued to it or otherwise conferred on it, and that such shares or
other instruments of ownership will be accepted by it in lieu of any rights with respect to any such liability under this Agreement
or any other Loan Document; or

 

(iii) the
variation of the terms of such liability in connection with the exercise of the write-down and conversion powers of any EEA Resolution
Authority.

 

[Signature Pages Follow]

 

    -90-

     

    

 

In
Witness Whereof, the parties hereto have caused this Agreement to be duly executed and delivered as of the day and
year first above written.

 

	 	Borrower:
	 	 
	 	Icagen-t,
    Inc.
	 	 
	 	By: 	                       
	 	 	Name:	                   
	 	 	Title:	 
	 	 	 	 
	 	Address for Notices:
	 	 
	 	2090 E. Innovation Park Drive 

Oro Valley, AZ 85755
	 	Attn: Richie Cunningham
	 	Email: rcunningham@icagen.com

 

[Signature Page to Credit Agreement and Guaranty]

 

     

     

    

 

	 	Parent:
	 	 
	 	Icagen,
    Inc., a Delaware corporation
	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 
	 	 	 	 
	 	Subsidiary
    Guarantors:
	 	 
	 	Icagen Corp.,
    a Nevada corporation
	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 
	 	 	 	 
	 	Caldera Discovery,
    Inc., a Delaware corporation
	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 
	 	 	 	 
	 	XRPro Sciences,
    Inc., a Delaware corporation
	 	 	 
	 	By:	                 
	 	 	Name:  	                 
	 	 	Title:  	 

 

[Signature Page to Credit Agreement and Guaranty]

 

     

     

    

 

	 	Administrative
    Agent:
	 	 
	 	Perceptive
    Credit Holdings II, LP
	 	 
	 	By:	 Perceptive Credit Opportunities GP, LLC, its general partner
	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 
	 	 	 	 
	 	By:	 
	 	 	Name:	                   
	 	 	Title:	 
	 	 	 	 
	 	Address for Notices:
	 	 
	 	Perceptive Credit Holdings II, LP
	 	c/o Perceptive Advisors LLC
	 	51 Astor Place, 10th Floor
	 	New York, NY 10003
	 	Attn: Sandeep Dixit
	 	Email: Sandeep@perceptivelife.com

 

[Signature Page to Credit Agreement and Guaranty]

 

     

     

    

 

	 	Lenders:
	 	 
	 	Perceptive
    Credit Holdings II, LP
	 	 
	 	By:	Perceptive Credit Opportunities GP, LLC, its general partner
	 	 	 	 
	 	By:	 
	 	 	Name:	               
	 	 	Title:	 
	 	 	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 
	 	 	 	 
	 	Address for Notices:
	 	 
	 	Perceptive Credit Holdings II, LP
	 	c/o Perceptive Advisors LLC
	 	51 Astor Place, 10th Floor
	 	New York, NY 10003
	 	Attn: Sandeep Dixit
	 	Email: Sandeep@perceptivelife.com

 

[Signature Page to Credit Agreement and Guaranty]Exhibit 4.2

 

Execution Version

 

Forbearance
Agreement and

First
Amendment to Credit Agreement
and Guaranty

 

This Forbearance Agreement
and First Amendment to Credit Agreement and Guaranty (herein, this “Agreement”) is entered into as of August
27, 2019, by and among Icagen, Inc., a Delaware corporation (the “Borrower”), the Subsidiary Guarantors party
thereto (the “Guarantors”, and the Guarantors together with the Borrower, collectively, the “Loan Parties”),
each financial institution from time to time party hereto as lender (each, a “Lender” and collectively, the
“Lenders”), and Perceptive Credit Holdings II, LP, as administrative agent
for the Lenders (in such capacity, and together with its successors and assigns, the “Agent”).

 

R
e c i t a l s:

 

A. The
Lenders have extended credit to the Borrower on the terms and conditions set forth in that certain Credit Agreement and Guaranty,
dated as of August 31, 2018 (the “Existing Credit Agreement”; the Existing Credit Agreement as amended by this
Agreement, the “Credit Agreement”).

 

B. The
Loan Parties are not in compliance with the financial covenant set forth in Section 10.01 of the Existing Credit Agreement and
the affirmative covenants set forth in Sections 8.01(a) and (d) of the Existing Credit Agreement, resulting in Events of Default
under Sections 11.01(d) and (e), respectively, of the Existing Credit Agreement (the “Existing Defaults”).

 

C. The
Lenders are not willing to waive the Existing Defaults, but during and only during the period (the “Standstill Period”)
beginning on the date of this Agreement and ending on the date of the Standstill Termination (as defined below), the Lenders are
willing to temporarily forbear from exercising certain rights and remedies available solely by reason of the Existing Defaults
on the terms and conditions set forth in this Agreement and the Credit Agreement.

 

D. The
parties hereto agree to amend the Existing Credit Agreement pursuant to the terms of this Agreement.

 

Now,
Therefore, for good and valuable consideration,
the receipt and sufficiency of which is hereby acknowledged, the parties hereto agree as follows:

 

1. Incorporation
of Recitals; Defined Terms. The parties hereto acknowledge that the Recitals set forth above are true and correct in all material
respects. The defined terms in the Recitals set forth above are hereby incorporated into this Agreement by reference. All other
capitalized terms used herein without definition shall have the same meanings herein as such terms have in the Credit Agreement.

 

     

     

    

 

2. Acknowledgment
of Defaults. The Existing Defaults constitute Events of Default under the Credit Agreement. The Loan Parties acknowledge
that, because of the Existing Defaults, the Agent and the Lenders are permitted and entitled (i) under Section 11.02 of the
Credit Agreement and under the other Loan Documents to accelerate the Obligations, to enforce Liens granted under the
Security Documents, and to exercise any other rights or remedies that may be available under the Loan Documents or under
applicable law and (ii) to charge the Default Rate under Section 3.02(b) of the Credit Agreement. The Loan Parties represent
to the Agent and the Lenders that there are no Defaults or Events of Default other than the Existing Defaults.

 

3. Forbearance.
Unless and until a Standstill Termination occurs, the Agent and the Lenders party hereto will not accelerate the Obligations or
enforce any of the Liens granted under the Security Documents or exercise any other rights or remedies available solely by reason
of the Existing Defaults.

 

4. Principal
Payments. The Borrower shall pay all principal on the Term Loan when due, including, without limitation, the Borrower
shall continue to make all scheduled payments of principal on the Term Loans as and when due under the Credit Agreement.

 

5. Interest
and Fee Payments. The Borrower shall pay all interest, fees, and other Obligations as and when due under the Credit Agreement.

 

6. Standstill
Termination. As used in this Agreement, “Standstill Termination” shall mean the earlier of December 31,
2019 or the occurrence of any one or more of the following events: (a) any Default or Event of Default under the Credit Agreement,
in each case other than the Existing Defaults; (b) any failure by any Loan Party for any reason to comply with any term, condition,
or provision contained in this Agreement; (c) any representation made by any Loan Party in this Agreement or pursuant to it proves
to be incorrect or misleading in any material respect when made (other than to the extent such representation is incorrect as a
result of the Existing Defaults); or (d) any Material Adverse Effect shall occur as determined in good faith by the Agent. The
occurrence of any Standstill Termination shall be deemed an Event of Default under the Credit Agreement. Upon the occurrence of
a Standstill Termination, the Standstill Period shall automatically terminate and the Agent and the Lenders shall then be permitted
and entitled under Section 11.02 of the Credit Agreement and the other Loan Documents, among other things, to accelerate the Obligations
and to exercise any other rights and remedies that may be available under the Loan Documents or applicable law.

 

7. First
Amendment to Existing Credit Agreement. Upon satisfaction of the conditions set forth in Section 13 hereof, the Loan Parties,
the Agent and the Lenders hereby agree that the Existing Credit Agreement is hereby amended by incorporating the changes shown
on the marked copy of the Existing Credit Agreement attached hereto as Annex A. Deletions of text in the Existing Credit Agreement
as amended hereby are indicated by struck-through red text, and insertions of text as amended hereby are indicated by underlined
blue text. Attached hereto as Annex B is a clean copy of the Credit Agreement conformed through the First Amendment. 

 

    -2-

     

    

 

8. No
Waiver and Reservation of Rights. The Loan Parties acknowledge that the Lenders are not waiving the Existing Defaults but,
are simply agreeing to forbear from exercising their rights with respect to the Existing Defaults to the extent expressly set forth
in this Agreement. Without limiting the generality of the foregoing, the Loan Parties acknowledge and agree that immediately upon
expiration of the Standstill Period, the Agent and the Lenders have all of their rights and remedies with respect to the Existing
Defaults to the same extent, and with the same force and effect, as if the forbearance had not occurred. The Loan Parties will
not assert and hereby forever waive any right to assert that the Agent or the Lenders are obligated in any way to continue beyond
the Standstill Period to forbear from enforcing their rights or remedies or that the Agent and the Lenders are not entitled to
act on the Existing Defaults after the occurrence of a Standstill Termination as if such default had just occurred and the Standstill
Period had never existed. The Loan Parties acknowledge that the Agent and the Lenders have made no representations as to what actions,
if any, the Agent or the Lenders will take after the Standstill Period or upon the occurrence of any Standstill Termination, a
Default or Event of Default, and the Agent and the Lenders must and do hereby specifically reserve any and all rights, remedies,
and claims they have (after giving effect hereto) with respect to the Existing Defaults and each other Default or Event of Default
that may occur.

 

9. Acknowledgement
of Liens and Affirmation of Guarantee. The Loan Parties hereby acknowledge and agree that the Obligations owing to the Agent
and the Lenders arising out of or in any manner relating to the Loan Documents shall continue to be secured by the Liens granted
as security therefor in the Loan Documents, to the extent provided for in the Loan Documents heretofore executed and delivered
by the such Loan Parties; and nothing herein contained shall in any manner affect or impair the priority of the Liens created and
provided for thereby as to the indebtedness, obligations, and liabilities which would be secured thereby prior to giving effect
to this Agreement. The Parent and Subsidiary Guarantors hereby reaffirm the Guaranteed Obligations owing to the Agent and the Lenders
to the extent provided for in the Credit Agreement, and hereby acknowledge and agree that nothing herein contained shall in any
manner affect or impair the Guaranteed Obligations.

 

    -3-

     

    

 

10.
RELEASE.

 

(A) For
value received, including without limitation, the
agreements ofthe Lenders in this Agreement,
each Loan Party,
on behalf of itself and its successors and assigns, and
its current and former shareholders, members, parents,
subsidiaries, divisions, affiliates,
directors, officers, employees,
agents, attorneys, advisors,
consultants, and other representatives (collectively,
the “Releasing Parties”),
hereby absolutely, unconditionally,
and irrevocably releases and forever discharges the Agent
and the Lenders, and their current
and former shareholders, members, parents,
subsidiaries, divisions, affiliates,
directors, officers, employees,
agents, attorneys, advisors,
consultants, and other representatives (collectively,
the “Released Parties”)
of and from any and all claims (including,
without limitation, all counterclaims,
crossclaims, defenses, rights
of set-off and recoupment), actions,
causes of action, acts and omissions,
controversies, demands, suits,
and other liabilities (collectively,
the “Claims”) of
every kind or nature whatsoever, both in law and in equity, known
or unknown, which any Releasing Party
has or ever had against the Released Parties
prior to, through, and including this
date, including, without limitation,
Claims arising out of the existing financing arrangements between the Borrower
and the Lenders and any Claim of breach
of the duty of good faith and fair dealing based on, among other things,
the Released Parties’
exercise of discretion under the Loan Documents.
The Loan Parties
hereby represent and warrant that, on behalf of themselves and their successors,
assigns and legal representatives, they have
not sold, conveyed, assigned,
pledged, hypothecated, or
otherwise encumbered all or any part of the Claims released in this Section.
The Loan Parties
hereby acknowledge and agree that, on behalf of themselves and their successors,
assigns and legal representatives, the Released
Parties have at all times acted in good faith with regard to the consummation and
administration of the Loan Documents.
Each Loan Party
acknowledges and agrees that, as of the date hereof, it
does not have any Claim against the Released
Parties, each of which such Loan
Party, on behalf of itself and its
successors, assigns and legal representatives, hereby
expressly waives. Each Loan Party
hereby confirms that the foregoing waiver and release is an informed waiver and release and is being freely given.

 

(B)
Each Loan Party
Further Agrees, On Behalf Of Itself And Its Successors, Assigns,
And Legal Representatives, Not To Commence,
Institute, Or Prosecute Any Lawsuit,
Action Or Other Proceeding, Whether Judicial,
Administrative Or Otherwise, To Collect Or
Enforce Any Claim Released Herein. If
Any Loan Party Or Any Of Its Successors,
Assigns, Or Legal Representatives Violates
The Foregoing Covenant, The Loan Parties
Hereby Agree, On Behalf Of Themselves And Their Successors And Assigns, To
Jointly And Severally Pay, In Addition To Any Damages As Any Released
Party May Sustain As A Result Of Such Violation, All
Attorneys’ Fees And Costs Incurred By Any Released
Party As A Result Of Such Violation.

 

11.
Entire Agreement; Loan Documents Remain Effective; No Novation; and Modifications. This Agreement and the Loan Documents
are intended by the Agent and the Lenders as a final expression of their agreement and are intended as a complete and exclusive
statement of the terms and conditions of that agreement. This Agreement supersedes all prior agreements, whether written or oral,
between the parties with respect to its subject matter and constitutes a complete and exclusive statement of the terms of the
agreement between the parties with respect to its subject matter. Except as expressly set forth in this Agreement, the Loan Documents
and all of the obligations of the Loan Parties thereunder, the rights and benefits of the Agent and the Lenders thereunder, and
the Liens created thereby remain in full force and effect. This Agreement is not a novation nor is it to be construed as a release,
waiver or modification of any of the terms, conditions, representations, warranties, covenants, rights or remedies set forth in
the Loan Documents, except as specifically set forth herein. Without limiting the foregoing, the Loan Parties agree to comply
with all of the terms, conditions, and provisions of the Loan Documents except to the extent such compliance is irreconcilably
inconsistent with the express provisions of this Agreement. This Agreement may not be amended, supplemented, or otherwise modified
except by a written agreement entered into in accordance with Section 14.04 of the Credit Agreement. THIS
AGREEMENT REPRESENTS THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED
BY EVIDENCE OF PRIOR, CONTEMPORANEOUS OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES.
THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

 

    -4-

     

    

 

12. Fees
and Expenses. The Borrower shall also pay all fees and expenses (including attorneys’ fees and expenses) incurred by
the Agent and its counsel outstanding as of the date hereof.

 

13. Conditions
Precedent. The effectiveness of this Agreement is subject to the satisfaction of the following conditions precedent:

 

13.1. The
Agent and the Lenders shall have received executed counterparts of this Agreement duly executed and delivered by each Loan Party.

 

13.2.
The Borrower shall have issued to the Agent 21 additional units of Series C Preferred Stock, together with accompanying Series
C Warrants.

 

13.3
The Borrower shall have received $500,000 in disbursements under the Subordinated Note.

 

13.4 The Agent, the Lenders, the Loan Parties
and Icagen-T shall have entered into a forbearance agreement and amendment to the Icagen-T Credit Agreement and the Agent and
the Lenders shall have received an executed copy thereof, duly executed and delivered by each Loan Party and Icagen-T.

 

14. Miscellaneous.
By its acceptance hereof, each Loan Party hereby represents that it has the necessary power and authority to execute, deliver,
and perform the undertakings contained herein, and that this Agreement constitutes the valid and binding obligation of such Loan
Party enforceable against it in accordance with its terms. Any provision of this Agreement held invalid, illegal, or unenforceable
in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such invalidity, illegality, or unenforceability
without affecting the validity, legality, and enforceability of the remaining provision hereof; and the invalidity of a particular
provision in a particular jurisdiction shall not invalidate such provision in any other jurisdiction. The parties hereto hereby
acknowledge and agree that this Agreement shall constitute a Loan Document for all purposes of the Credit Agreement and the other
Loan Documents. Unless otherwise expressly stated herein, the provisions of this Agreement shall survive the termination of the
Standstill Period. This Agreement may be executed in counterparts and by different parties on separate counterpart signature pages,
each of which constitutes an original and all of which taken together constitute one and the same instrument. Delivery of a counterpart
hereof by facsimile transmission or by e-mail transmission of an Adobe portable document format file (also known as a “PDF”
file) shall be effective as delivery of a manually executed counterpart hereof. The provisions contained in Sections 14.09 (Governing
Law), 14.10 (Jurisdiction; Service of Process and Venue) and 14.11 (Waiver of Jury Trial) of the Credit Agreement are incorporated
herein by reference, mutatis mutandis.

 

[Signature
Pages to Follow]

 

    -5-

     

    

 

This Agreement is entered into as of the date and year
first above written.

 

	 	ICAGEN, INC., as Borrower
	 	 	 
	 	By:	/s/ Richard Cunningham 
	 	Name: 	Richard Cunningham
	 	Title:	President & CEO
	 	 	 
	 	ICAGEN
CORP., as a Guarantor
	 	 	 
	 	By:	/s/ Richard Cunningham
	 	Name: 	Richard Cunningham
	 	Title:	President & CEO
	 	 	 
	 	CALDERA DISCOVERY, INC., as a Guarantor
	 	 	 
	 	By:	/s/ Richard Cunningham
	 	Name: 	Richard Cunningham 
	 	Title:	President & CEO
	 	 	 
	 	XPRO SCIENCES, INC., as a Guarantor
	 	 	 
	 	By:	/s/ Richard Cunningham
	 	Name: 	Richard Cunningham
	 	Title:	President & CEO

 

Signature Page to Forbearance Agreement and First Amendment

to Credit Agreement and Guaranty (Icagen, Inc.)

 

     

     

    

 

	 	Accepted and agreed to.
	 	 
	 	PERCEPTIVE CREDIT HOLDINGS, II LP
	 	as Agent and Lender
	 	 
	 	By:	Perceptive Credit Opportunities GP, LLC, its general partner
	 	 	 
	 	By:	/s/ Sandeep Dixit
	 	Name: 	Sandeep Dixit
	 	Title:	Chief Credit Officer
	 	 	 
	 	By:	/s/ Sam Chawla
	 	Name: 	Sam Chawla
	 	Title:	Portfolio Manager

 

Signature Page to Forbearance Agreement and First Amendment

to Credit
Agreement and Guaranty (Icagen, Inc.)

 

     

     

    

 

ANNEX A

 

Marked Credit Agreement

 

     

     

    

 

Execution
Version

 

 

 

Credit
Agreement and Guaranty1

 

dated as of

 

August
31, 2018

 

among

 

Icagen,
inc.

as the Borrower,

 

Certain
Subsidiaries of the Borrower from Time to Time Party Hereto,

as the Subsidiary Guarantors,

 

The
Lenders from Time to Time Party hereto,

as the Lenders,

 

and

 

Perceptive
Credit Holdings Ii, Lp

as the Administrative Agent

 

U.S. $7,250,000

 

 

 

 

		1	Conformed
                                         to reflect changes from the Forbearance Agreement and First Amendment to Credit Agreement
                                         and Guaranty dated as of August 27, 2019.

     

     

    

 

Table of Contents

 

	Section	 	Heading	 	Page
    
	 	 	 	 	 
	Section
    1.	 	Definitions	 	1
	Section 1.01.	 	Certain Defined Terms	 	1
	Section 1.02.	 	Accounting Terms and Principles	 	22
	Section 1.03.	 	Interpretation	 	2311
	Section 1.04.	 	Changes to GAAP	 	24
	 	 	 	 	 
	Section 2.	 	The Commitments and the  Term Loan	 	2425
	Section 2.01.	 	 Term Loan	 	2425
	Section 2.02.	 	Notes	 	25
	Section 2.03.	 	Use of Proceeds	 	25
	Section 2.04.	 	Proportionate Shares	 	25
	 	 	 	 	 
	Section 3	 	Payments of Principal
    and Interest	 	2526
	Section 3.01.	 	Repayments and Prepayments Generally; Application	 	2526
	Section 3.02.	 	Interest	 	26
	Section 3.03.	 	Prepayments; Prepayment Premium	 	2526
	Section 3.04.	 	Closing Fees	 	28
	 	 	 	 	 
	Section 4.	 	Payments, Etc	 	28
	Section 4.01.	 	Payments	 	28
	Section 4.02.	 	Computations	 	2829
	Section 4.03.	 	Set-Off	 	2829
	 	 	 	 	 
	Section 5.	 	Yield Protection,
Etc.	 	29
	Section 5.01.	 	Additional Costs	 	29
	Section 5.02.	 	Illegality	 	30
	Section 5.03.	 	Taxes	 	3031
	Section 5.04.	 	Delay in Requests	 	3435
	 	 	 	 	 
	Section 6.	 	Conditions Precedent	 	3638
	Section 6.01.	 	Conditions to the Closing Date	 	3638
	 	 	 	 	 
	Section 7.	 	Representations and Warranties	 	3941
	Section 7.01.	 	Power and Authority	 	3941
	Section 7.02.	 	Authorization; Enforceability	 	4042
	Section 7.03.	 	Governmental and Other Approvals; No Conflicts	 	4042
	Section 7.04.	 	Financial Statements; Material Adverse Change	 	4042
	Section 7.05.	 	Properties	 	4043
	Section 7.06.	 	No Actions or Proceedings	 	4345

 

    -i-

     

    

	Section 7.07.	Compliance with Laws and Agreements	4446
	Section 7.08.	Taxes	4446
	Section 7.09.	Full Disclosure	4446
	Section 7.10.	Investment Company and Margin Stock Regulation	4446
	Section 7.11.	Solvency	4447
	Section 7.12	Equity Holders; Subsidiaries; Equity Investments	4547
	Section 7.13.	Indebtedness and Liens	4547
	Section 7.14.	Material Agreements	4547
	Section 7.15.	Restrictive Agreements	4548
	Section 7.16.	Real Property	4548
	Section 7.17.	Pension Matters	4648
	Section 7.18.	Priority of Obligations; Collateral; Security Interest	4648
	Section 7.19.	Regulatory Approvals	4648
	Section 7.20.	Transactions with Affiliates	4749
	Section 7.21.	OFAC	4719
	Section 7.22.	Anti-Corruption.	4719
	Section 7.23.	Deposit and Disbursement Accounts	4819
	Section 7.24.	Royalty and Other Payments	4819
	 	 	 
	Section
    8.	Affirmative
    Covenants	4819
	 	 	 
	Section 8.01.	Financial Statements and Other Information	4850
	Section 8.02.	Notices of Material Events	5153
	Section 8.03.	Existence; Conduct of Business	5355
	Section 8.04.	Payment of Obligations	5355
	Section 8.05.	Insurance	5356
	Section 8.06.	Books and Records; Inspection Rights	5456
	Section 8.07.	Compliance with Laws and Other Obligations	5557
	Section 8.08.	Maintenance of Properties, Etc.	5557
	Section 8.09.	Maintenance of Regulatory Approvals and Material Intellectual Property	5557
	Section 8.10.	Action Under Environmental Laws	5557
	Section 8.11.	Use of Proceeds	5558
	Section 8.12.	Certain Obligations Respecting Subsidiaries; Further Assurances	 5658
	Section 8.13.	Termination of Non-Permitted Liens	5659
	Section 8.14.	Intellectual Property	5759
	Section 8.15.	ERISA Compliance	5759
	Section 8.16.	Cash Management	5759
	Section 8.17.	Post-Closing Obligations	5720
	Section 8.18.	Milestone.	5720
	Section 8.19.	Icagen-T Lien	5720
	Section 8.20.	Board Observer Rights	5820
	Section 8.21.	Cash Flow	21
	Section 8.22.	Tuscon Real Estate	21
	Section 8.23.	Series C Capital Raise	21
	Section 8.24.	Subordinated Notes	21

 

    -ii-

     

    

 

	Section
    9.	Negative Covenants	5821
	 	 	 
	Section 9.01.	Indebtedness	5821
	Section 9.02.	Liens	6022
	Section 9.03.	Fundamental Changes and Acquisitions	6265
	Section 9.04.	Lines of Business	6365
	Section 9.05.	Investments	6366
	Section 9.06.	Restricted Payments	6467
	Section 9.07.	Payments of Indebtedness	6568
	Section 9.08.	Change in Fiscal Year	6568
	Section 9.09.	Sales of Assets, Etc	6568
	Section 9.10.	Transactions with Affiliates	6669
	Section 9.11.	Restrictive Agreements	6669
	Section 9.12.	Modifications and Terminations of Material Agreements and Organic Documents	6769
	Section 9.13.	Licensing of Intellectual Property	6770
	Section 9.14.	Sales and Leasebacks	6770
	Section 9.15.	Hazardous Material	6770
	Section 9.16.	Accounting Changes	6770
	Section 9.17.	Compliance with ERISA	6770
	 	 	 
	Section 10.	Financial Covenants	6770
	 	 	 
	Section 10.01.	Minimum Liquidity	6770
	Section 10.02.	Minimum Revenue	6870
	 	 	 
	Section 11.	Events of Default	6871
	 	 	 
	Section 11.01.	Events of Default	6871
	Section 11.02.	Remedies	7174
	Section 11.03.	Additional Remedies	7174
	Section 11.04.	Prepayment Premium and Redemption Price	7224
	 	 	 
	Section 12.	Guarantee	7224
	 	 	 
	Section 12.01.	The Guarantee	7224
	Section 12.02.	Obligations Unconditional	7324
	Section 12.03.	Reinstatement	7376
	Section 12.04.	Subrogation	7476
	Section 12.05.	Remedies	7476
	Section 12.06.	Instrument for the Payment of Money	7477
	Section 12.07.	Continuing Guarantee	7477
	Section 12.08.	Rights of Contribution	7477
	Section 12.09.	General Limitation on Guarantee Obligations	7578
	 	 	 
	Section 13.	Administrative Agent	7578
	 	 	 
	Section 13.01.	Appointment	7578
	Section 13.02.	Rights as a Lender	7678

 

    -iii-

     

    

 

	Section 13.	Administrative Agent	7578
	 	 	 
	Section 13.01.	Appointment	7578
	Section 13.02.	Rights as a Lender	7678

 

	Section 13.03.	Exculpatory Provisions	7679
	Section 13.04.	Reliance by Administrative Agent	7779
	Section 13.05.	Delegation of Duties	7780
	Section 13.06.	Resignation of Agent.	7780
	Section 13.07.	Non-Reliance on Administrative Agent and Other Lenders	7881
	Section 13.08.	Administrative Agent May File Proofs of Claim	7881
	Section 13.09.	Collateral and Guaranty Matters; Appointment of Collateral Agent	7982
	 	 	 
	Section 14.	Miscellaneous	8083
	 	 	 
	Section 14.01.	No Waiver	8083
	Section 14.02.	Notices	8083
	Section 14.03.	Expenses, Indemnification, Etc.	8183
	Section 14.04.	Amendments, Etc.	8184
	Section 14.05.	Successors and Assigns	8285
	Section 14.06.	Survival	8487
	Section 14.07.	Captions	8487
	Section 14.08.	Counterparts	8587
	Section 14.09.	Governing Law	8587
	Section 14.10.	Jurisdiction, Service of Process and Venue	8587
	Section 14.11.	Waiver of Jury Trial	8588
	Section 14.12.	Waiver of Immunity	8588
	Section 14.13.	Entire Agreement	8688
	Section 14.14.	Severability	8688
	Section 14.15.	No Fiduciary Relationship	8689
	Section 14.16.	Confidentiality	8689
	Section 14.17.	Right of Setoff.	8789
	Section 14.18.	Judgment Currency	8790
	Section 14.19.	USA PATRIOT Act	8890
	Section 14.20.	Release of Collateral and Guarantees; Non-Disturbance Agreements	8890
	Section 14.21.	Acknowledgement and Consent to Bail-In of EEA Financial Institutions	8891

 

    -iv-

     

    

 

“Event of Default” has the meaning set forth in Section 11.01.

 

“Excess Funding Guarantor” has
the meaning set forth in Section 12.08. “Excess Payment” has the meaning set forth in Section 12.08.

 

“Exchange Act” means the Securities
Exchange Act of 1934, as amended.

 

“Excluded
Account” means, collectively, (i) accounts used exclusively for payroll, the withheld employee portion of payroll taxes
and other employee wage and benefit payments, and (ii) fiduciary and other trust accounts.

 

“Excluded
Taxes” means any of the following Taxes imposed on or with respect to a Recipient or required to be withheld or deducted
from a payment to a Recipient: (i) Taxes imposed on or measured by net income (however denominated), franchise Taxes and branch
profits Taxes, in each case, (x) imposed as a result of such Recipient being organized under the laws of, or having its principal
office or, in the case of any Lender, its applicable lending office located in, the jurisdiction imposing such Tax (or any political
subdivisions thereof) or (y) that are Other Connection Taxes, (ii) in the case of a Lender, U.S. federal withholding Taxes imposed
on amounts payable to or for the account of such Lender with respect to an applicable interest in a Term Loan or Commitment pursuant
to a law in effect on the date on which (1) such Lender acquires such interest in the Term Loan or Commitment (other than pursuant
to an assignment request by the Borrower pursuant to Section 5.03(h)) or (2) such Lender changes its lending office, except in
each case to the extent that, pursuant to Section 5.03, amounts with respect to such Taxes were payable either to such Lender’s
assignor immediately before such Lender became a party hereto or to such Lender immediately before it changed its lending office,
(iii) Taxes attributable to such Recipient’s failure to comply with Section 5.03(f), and (iv) any withholding Taxes imposed
under FATCA.

 

“Fair Share” has the meaning set
forth in Section 12.08.

 

“FATCA”
means Sections 1471 through 1474 of the Code, as of the date of this Agreement (or any amended or successor version that is
substantively comparable and not materially more onerous to comply with), any current or future regulations or official interpretations
thereof, any agreements entered into pursuant to Section 1471(b)(1) of the Code, and any fiscal or regulatory legislation, rules
or practices adopted pursuant to any intergovernmental agreement, treaty or convention among Governmental Authorities and implementing
such Sections of the Code.

 

“FD&C
Act” means the U.S. Food, Drug and Cosmetic Act of 1938 (or any successor thereto), as amended from time to time, and
the rules, regulations, guidelines, guidance, documents and compliance policy guides issued or promulgated thereunder.

 

“FDA” means the U.S. Food and
Drug Administration and any successor entity.

 

“First Amendment Date” means
August 27, 2019.

 

    -1- 

     

    

 

“First
Amendment Term Loan” has the meaning set forth in the Icagen-T Credit Agreement.

 

“Foreign Lender”
means a Lender (or, if the Lender is a disregarded entity for U.S. federal income tax purposes, the Person treated as the owner
of the assets of such Lender for U.S. federal income tax purposes) that is not a U.S. Person.

 

“Foreign Subsidiary”
means a Subsidiary of the Borrower that is not incorporated, formed or organized under the laws of the United States, any State
of the United States or the District of Columbia.

 

“GAAP”
means generally accepted accounting principles in the United States of America, as in effect from time to time, set forth in
the opinions and pronouncements of the Accounting Principles Board and the American Institute of Certified Public Accountants,
in the statements and pronouncements of the Financial Accounting Standards Board and in such other statements by such other entity
as may be in general use by significant segments of the accounting profession that are applicable to the circumstances as of the
date of determination. The definition of GAAP shall be subject to Sections 1.02 and 1.04.

 

“Governmental
Approval” means any required consent, authorization, approval, order, license, franchise, permit, certification, accreditation,
registration, clearance, exemption, filing or notice that is issued or granted by or from (or pursuant to any act of) any applicable
Governmental Authority, including any application or submission related to any of the foregoing.

 

“Governmental
Authority” means any nation, government, branch of power (whether executive, legislative or judicial), state, province
or municipality or other political subdivision thereof and any entity exercising executive, legislative, judicial, monetary, regulatory
or administrative functions of or pertaining to government, including without limitation regulatory authorities, governmental departments,
agencies, commissions, bureaus, officials, ministers, courts, bodies, boards, tribunals and dispute settlement panels, and other
law-, rule- or regulation-making organizations or entities of any state, territory, county, city or other political subdivision
of any country, in each case whether U.S. or non-U.S.

 

“Guarantee”
of or by any Person (the “guarantor”) means any obligation, contingent or otherwise, of the guarantor guaranteeing
or having the economic effect of guaranteeing any Indebtedness or other monetary obligation of any other Person (the “primary
obligor”) in any manner, whether directly or indirectly, and including any obligation of the guarantor, direct or indirect,
(i) to purchase or pay (or advance or supply funds for the purchase or payment of) such Indebtedness or other monetary obligation
or to purchase (or to advance or supply funds for the purchase of) any security for the payment thereof, (ii) to purchase or lease
property, securities or services for the purpose of assuring the owner of such Indebtedness or other monetary obligation of the
payment thereof, (iii) to maintain working capital, equity capital or any other financial statement condition or liquidity of
the primary obligor so as to enable the primary obligor to pay such Indebtedness or other monetary obligation, or (iv) as an account
party in respect of any letter of credit or letter of guaranty issued to support such Indebtedness or monetary obligation; provided
that the term Guarantee shall not include endorsements for collection or deposit in the ordinary

 

    -2- 

     

    

  

payments or expenditures (including royalty, licensing or
similar payments) to be made by any Obligor or any of its Subsidiaries in an aggregate amount in excess of $1,000,000.

 

“Material
Indebtedness” means, at any time, any Indebtedness of any Obligor (excluding intercompany Indebtedness among Obligors
and/or their Subsidiaries to the extent permitted hereunder), the outstanding principal amount of which, individually or in the
aggregate, exceeds $500,000.

 

“Material
Intellectual Property” means (i) all Obligor Intellectual Property listed in Schedule 7.05(c) and (ii) all other Obligor
Intellectual Property, whether currently owned or licensed or acquired, developed or otherwise licensed or obtained after the date
hereof (a) the loss of which could reasonably be expected to have a Material Adverse Effect or (b) that has a fair market value
in excess of $500,000.

 

“Maturity Date” means August 31,
2022.

 

“Multiemployer
Plan” means any multiemployer plan, as defined in Section 4001(a)(3) of ERISA, to which any ERISA Affiliate incurs or
otherwise has any obligation or liability, contingent or otherwise.

 

“Net Cash
Proceeds” means, with respect to the sale of the Tucson Real Estate by Icagen-T or
any Casualty Event, the amount of cash proceeds received (directly or indirectly) from time to time by or on behalf of any Obligor
after deducting therefrom only (w) reasonable fees, costs and expenses related thereto incurred by such Obligor in connection therewith,
(x) amounts required to be repaid on account of any Permitted Indebtedness or other obligations (other than the Obligations) required
to be repaid as a result of such Casualty Event, (y) amounts required to be reserved in accordance with GAAP for indemnities and
against liabilities associated with the property damaged, destructed or condemned in such Casualty Event and (z) Taxes (including
transfer Taxes or net income Taxes) paid or payable in connection therewith; provided that amounts specified therein in
respect of costs, expenses or repayments shall only be deducted from aggregate cash proceeds to the extent such amounts are (1)
actually paid to a Person that is not an Affiliate of the Borrower or any of its Subsidiaries and (2) properly attributable to
such Casualty Event or the sale of the Tucson Real Estate by Icagen-T, as applicable.

 

“Note”
means a promissory note, in substantially the form of Exhibit A hereto, executed and delivered by the Borrower to any Lender
in accordance with Section 2.02.

 

“NY UCC” means the UCC as in effect
from time to time in New York.

 

“Obligations”
means, with respect to any Obligor, all amounts, obligations, liabilities, covenants and duties of every type and description
owing by such Obligor to any Secured Party (including all Guaranteed Obligations and the Warrant Obligations), arising out of,
under, or in connection with, any Loan Document, whether direct or indirect (regardless of whether acquired by assignment), absolute
or contingent, due or to become due, whether liquidated or not, now existing or hereafter arising and however acquired, and whether
or not evidenced by any instrument or for the payment of money, including, without duplication, (i) if such Obligor is the

 

    -3- 

     

    

 

“Permitted
Priority Liens” means Liens permitted under any of the clauses (b), (c), (d), (e), (f) or (i) of Section 9.02.

 

“Permitted
Refinancing” means, with respect to any Permitted Indebtedness, any extension, renewal, replacement or refinancing of
such Indebtedness; provided that such extension, renewal, replacement or refinancing (i) shall not increase the outstanding
principal amount of such Indebtedness except by accrued and unpaid interest and premiums thereon and fees and expenses associated
with such extension, renewal, replacement or refinancing, (ii) contains terms relating to outstanding principal amount, amortization,
maturity, collateral (if any) and subordination (if any), and other material terms taken as a whole no less favorable in any material
respect to the Borrower and its Subsidiaries or the Secured Parties than the terms of any agreement or instrument governing the
Indebtedness being extended, renewed, replaced or refinanced, (iii) shall have an applicable interest rate or equivalent yield
which does not exceed the interest rate or equivalent yield of the Indebtedness being extended, renewed, replaced or refinanced,
(iv) shall not contain any new requirement to grant any Lien or to give any Guarantee that was not an existing requirement of the
Indebtedness being extended, renewed, replaced or refinanced and (v) after giving effect to such extension, renewal, replacement
or refinancing, no Default or Event of Default shall have occurred (or would reasonably be expected to occur) as a result thereof.

 

“Person”
means any individual, corporation, company, voluntary association, partnership, limited liability company, joint venture, trust,
unincorporated organization or Governmental Authority or other entity of whatever nature.

 

“PIK Interest”
has the meaning set forth in the Icagen-T Credit Agreement. “Prepayment Date” has the
meaning set forth in Section 3.03(a)(i).

 

“Prepayment
Premium” means with respect to any prepayment of principal of the Term Loan referenced in Section 3.03(a) occurring (i)
on or prior to the first anniversary of the Closing Date, an amount equal to twelve percent (12%) of the aggregate outstanding
principal amount of the Term Loan being prepaid, (ii) at any time after the first anniversary of the Closing Date and on or prior
to the second anniversary of the Closing Date, an amount equal to eight percent (8%) of the aggregate outstanding principal amount
of the Term Loan being prepaid; and (iii) at any time after the second anniversary of the Closing Date and on or prior to the third
anniversary of the Closing Date, an amount equal to three percent (3%) of the aggregate outstanding principal amount of the Term
Loan being prepaid on such Prepayment Date.

 

“Prepayment Price” has the meaning
set forth in Section 3.03(a)(i).

 

“Product”
means any future product developed, manufactured, licensed, marketed, sold or otherwise commercialized by any Obligor, including
any such product in development or which may be developed, in each case related to Material Intellectual Property.

 

“Product
Commercialization and Development Activities” means, with respect to any Product, any combination of research,
development, manufacture, importation, use, sale, storage, 

 

    -4- 

     

    

 

value of the property
of such Person is greater than the total amount of liabilities (including contingent liabilities) of such Person, (ii) the present
fair saleable value of the property of such Person is not less than the amount that will be required to pay the probable liability
of such Person on its debts as they become absolute and matured and (iii) such Person has not incurred and does not intend to,
and does not believe that it will, incur debts or liabilities beyond such Person’s ability to pay such debts and liabilities
as they mature.

 

“Subordinated
Notes” means those certain subordinated promissory notes issued pursuant to that certain Securities Purchase Agreement,
dated August 27, 2019, among Parent and the investors party thereto and in an aggregate principal amount not to exceed $2,500,000.

 

“Subsidiary”
means, with respect to any Person (the “parent”) at any date, any corporation, limited liability company,
partnership, association or other entity the accounts of which would be consolidated with those of the parent in the parent’s
consolidated financial statements if such financial statements were prepared in accordance with GAAP as of such date, as well as
any other corporation, limited liability company, partnership, association or other entity of which securities or other ownership
interests representing more than fifty percent (50%) of the equity or more than fifty percent (50%) of the ordinary voting power
or, in the case of a partnership, more than fifty percent (50%) of the general partnership interests are, as of such date, directly
or indirectly, owned, controlled or held.

 

“Subsidiary
Guarantors” means each Subsidiary of the Borrower identified under the caption “SUBSIDIARY GUARANTORS” on
the signature pages hereto and each Subsidiary of the Borrower that becomes, or is required to become, a “Subsidiary Guarantor”
after the date hereof pursuant to Section 8.12(a).

 

“Taxes”
means all present or future taxes, levies, imposts, duties, deductions, withholdings (including backup withholding), assessments,
fees or other charges imposed by any Governmental Authority, including any interest, additions to tax or penalties applicable thereto.

 

“Technical
Information” means all trade secrets and other proprietary or confidential information, public information, non-proprietary
know-how, any information of a scientific, technical, or business nature in any form or medium, standards and specifications, conceptions,
ideas, innovations, discoveries, Invention disclosures, all documented research, developmental, demonstration or engineering work
and all other information, data, plans, specifications, reports, summaries, experimental data, manuals, models, samples, know-how,
technical information, systems, methodologies, computer programs, information technology and any other information.

 

“Term Loan”
means each loan advanced by a Lender pursuant to Section 2.01(a). For purposes of clarification, any calculation of the aggregate
outstanding principal amount of the Term Loan on any date of determination shall mean the aggregate principal amount of the Term
Loan made pursuant to Section 2.01(a) that has not yet been repaid as of such date.

 

“Title IV
Plan” means an employee benefit plan (as defined in Section 3(3) of ERISA) other than a Multiemployer Plan (i) that
is or within the last six years was maintained or sponsored by any Obligor or any ERISA Affiliate thereof or to which any Obligor
or any ERISA Affiliate 

 

    -5- 

     

    

 

thereof within the last six years made, or was obligated to make, contributions, and (ii) that is or was
subject to Section 412 of the Code, Section 302 of ERISA or Title IV of ERISA.

 

“Trademarks”
means all trade names, trademarks and service marks, logos, trademark and service mark registrations, and applications for
trademark and service mark registrations, including all renewals of trademark and service mark registrations, all rights to recover
for all past, present and future infringements thereof and all rights to sue therefor, and all rights corresponding thereto throughout
the world, together, in each case, with the product lines and goodwill of the business connected with the use thereof.

 

“Transactions”
means the negotiation, preparation, execution, delivery and performance by each Obligor of this Agreement and the other Loan
Documents to which such Obligor is (or is intended to be) a party, the making of the Term Loan hereunder, and all other transactions
contemplated pursuant to this Agreement and the other Loan Documents.

 

“Tucson Real Estate”
has the meaning set forth in Section 8.22. 

 

“Tucson Real Estate Sale
Proceeds” has the meaning set forth in Section 8.22.

 

“UCC”
means, with respect to any applicable jurisdictions, the Uniform Commercial Code as in effect in such jurisdiction, as may
be modified from time to time.

 

“United States”
or “U.S.” means the United States of America, its fifty (50) states and the District of Columbia.

 

“U.S. Person”
means a “United States person” within the meaning of Section 7701(a)(30) of the Code.

 

“U.S. Tax Compliance Certificate”
has the meaning set forth in Section 5.03(f)(ii)(B).

 

“Warrant”
means the warrant to be delivered to the Administrative Agent pursuant to Section 6.01 on the Closing Date, that, among other
things, grants the holder thereof the right to purchase the number of shares of common stock of the Borrower as indicated on the
Warrant Shares table on Schedule 1, as the Warrant may be amended, replaced or otherwise modified pursuant to the terms thereof.

 

“Warrant
Obligations” means all Obligations of the Borrower arising out of, under or in connection with the Warrant.

 

“Withholding Agent” means the
Borrower, any Obligor and the Administrative Agent.

 

“Write-Down and Conversion Powers” means, with respect
to any EEA Resolution Authority, the write-down and conversion powers of such EEA Resolution Authority from time to time under
the Bail-In Legislation for the applicable EEA Member Country, which write-down and conversion powers are described in the EU Bail-In
Legislation Schedule.

 

    -6- 

     

    

 

interest payable
hereunder will be reduced to the extent necessary so that such rates (together with any fees or other amounts which are construed
by a court of competent jurisdiction to be interest or in the nature of interest) equal the maximum interest rate permitted by
applicable law, and any overpayment of interest received by the Lenders before such rates are so construed will be applied, forthwith
after determination of such overpayment, to pay all then outstanding interest, and thereafter to pay outstanding principal.

 

Section 3.03. Prepayments; Prepayment Premium.

 

(a) Optional
Prepayments. (i) Subject to prior written notice pursuant to clause (ii) below, the Borrower shall have the right to optionally
prepay, in whole or in part, the outstanding principal amount of the Term Loan on any Business Day (a “Prepayment Date”)
for an aggregate amount equal to the sum of (x) the aggregate principal amount of the Term Loan being prepaid, (y) the applicable
Prepayment Premium on the principal amount of the Term Loan being prepaid and (z) any accrued but unpaid interest on the principal
amount of the Term Loan being prepaid (such aggregate amount, the “Prepayment Price”).

 

(ii) A notice of optional
prepayment shall be effective only if received by the Administrative Agent not later than 2:00 p.m. (Eastern time) on a date not
less than one (1) Business Day prior to the proposed Prepayment Date. Each notice of optional prepayment shall specify the Prepayment
Price and the principal amount to be prepaid, as well as the Prepayment Date.

 

(b) Mandatory
Prepayments. (i) Subject to the proviso below, upon the occurrence of any Casualty
Event, the Borrower shall make a mandatory prepayment of the Term Loan in an aggregate amount equal to the sum of (x) one hundred
percent (100%) of the Net Cash Proceeds received by the Borrower or any other Obligor as a result of such Casualty Event up
to the principal amount outstanding of the Term Loan, and (y) any accrued but unpaid interest on such principal amount
of the Term Loan being prepaid; provided that so long as no Default or Event of Default has occurred and is continuing
at the time the Borrower or any Obligor shall have received such Net Cash Proceeds, if, within five (5) Business Days following
the occurrence of any such Casualty Event, a Responsible Officer of the Borrower may deliver to the Administrative Agent a notice
(each, a “Casualty Event Reinvestment Notice”) to the effect that the Borrower or applicable Obligor intends
to apply the Net Cash Proceeds from such Casualty Event to acquire, replace or rebuild the property subject to such Casualty Event
or to the cost of purchase or construction of other assets useful in the business of the Borrower or its Subsidiaries, then such
Net Cash Proceeds of such Casualty Event may be applied for such purpose in lieu of such mandatory prepayment, provided further
that, in the event that Net Cash Proceeds have not been so applied within one hundred eighty (180) days following the occurrence
of such Casualty Event, the Borrower shall make a mandatory prepayment of the Term Loan in an aggregate amount equal to the sum
of (A) one hundred percent (100%) of the unused balance of such Net Cash Proceeds received by the Borrower or any other Obligor
as a result of such Casualty Event up to the principal amount outstanding of the Term Loan,
and (B) any accrued but unpaid interest on such principal amount of the Term Loan being prepaid, provided, further, that
to the extent that the property subject to the Casualty Event is Collateral, then any such acquired, replaced, repaired, purchased
or constructed property shall be Collateral in which the Administrative Agent, for the benefit of the Lenders, has 

 

    -7- 

     

    

 

been
granted a security interest under the Security Documents.

 

(ii) Upon
receipt of the Tucson Real Estate Sale Proceeds in accordance with Section 8.22, the Borrower shall make a mandatory
prepayment of the Obligations in an aggregate amount equal in an aggregate amount equal to the lesser of (i) the entire
outstanding Obligations as of such date and (ii) one hundred percent (100%) of the Net Cash Proceeds received by the Borrower
from Icagen-T in connection with such sale, to be applied pursuant to Section 3.03(d) below.

 

(c) Prepayment
Premium. Without limiting the foregoing, whenever the Prepayment Premium is in effect and payable pursuant to the terms hereof,
such premium shall be payable on all payments and prepayments of the Term Loan, whether as a result of clause (a) above in this
Section 3.03, acceleration or otherwise (but excluding any prepayment pursuant to clause (b) above).

 

(d) Application.
Proceeds of any prepayment made pursuant to clauses (a) or (b) above shall be applied in the following order of priority, with
proceeds being applied to a succeeding level of priority only if amounts owing pursuant to the immediately preceding level of priority
have been paid in full in cash:

 

(i) first,
to the payment of any unpaid costs or expenses referred to in Section 14.03 then due and owing;

 

(ii) second,
to the payment of any accrued and unpaid interest and any fees then due and owing;

 

(iii) third,
to the payment of unpaid principal of the Term Loan;

 

(iv) fourth,
to the payment of any Prepayment Premium then due and payable;

and

 

(v) fifth,
to the Borrower or such other Persons as may lawfully be entitled to or directed by the Borrower to receive the
remainder.

 

Section 3.04. Closing Fee. On the Closing Date, the Borrower
shall pay to the Administrative Agent out of the proceeds of the Term Loan a non-refundable fee in the amount equal to two percent
(2%) of the principal amount of the Term Loan advanced by the Lenders on such date (the “Closing Fee”). Payment
of the Closing Fee shall be in addition to such fees, costs and expenses due and payable pursuant to Section 14.03. Upon receipt
of payment from the Borrower, the Administrative Agent will promptly thereafter distribute like funds relating to any such payment
to the Lenders pro rata on the basis of each Lender’s Proportionate Share.

 

    -8- 

     

    

 

knowledge
of the Borrower, any of their respective directors, officers or employees nor, to the knowledge of the Borrower, any agents or
other Persons acting on behalf of any of the foregoing, directly or indirectly, has (i) violated or is in violation, in any material
respect, of any applicable anti-corruption Law, or (ii) made, offered to make, promised to make or authorized the payment or giving
of, directly or indirectly, any Prohibited Payment. To the Borrower’s knowledge, no Obligor has been subject to any investigation
by any Governmental Authority with regard to any actual or alleged Prohibited Payment.

 

Section 7.23. Deposit
and Disbursement Accounts. Schedule 7.23 contains a list of all banks and other financial institutions at which any Obligor
or any of its Subsidiaries maintains Deposit Accounts, Securities Accounts and Commodity Accounts, and Schedule 7.23 sets forth
the name, address and telephone number of each such bank or financial institution, the name in which such account is held, the
type of such account and the complete account number therefor.

 

Section 7.24. Royalty
and Other Payments. Except as set forth on Schedule 7.24, no Obligor, nor any of its Subsidiaries, is obligated to pay any
royalty, milestone payment, deferred payment or any other contingent payment.

 

SECTION 8. AFFIRMATIVE COVENANTS.

 

Each Obligor covenants
and agrees with the Lenders that, until the Commitments have expired or been terminated and all Obligations (other than Warrant
Obligations and contingent obligations as to which no claims have been asserted) have been indefeasibly paid in full in cash provided,
however, that the covenants set forth in Sections 8.21 and 8.22 shall terminate upon payment in full of the unpaid principal
amount owed under the First Amendment Term Loan and all accrued and unpaid PIK Interest on the First Amendment Term Loan:

 

Section 8.01. Financial
Statements and Other Information. The Borrower will furnish to the Administrative Agent:

 

(a) as
soon as available and in any event within 30 days after the end of each month (including the last month of each fiscal quarter),
a consolidated balance sheet for the Borrower and its Subsidiaries as of the end of such month, and the related consolidated statements
of income and cash flows for such month and the portion of the fiscal year through the end of such month, all in reasonable detail
and setting forth in comparative form the figures for the corresponding period in the preceding fiscal year, together with a certificate
of a Responsible Officer of the Borrower stating that such financial statements fairly present in all material respects the financial
condition of the Borrower and its Subsidiaries as at such date and the results of operations of the Borrower and its Subsidiaries
for the period ended on such date and have been prepared in accordance with GAAP, subject to changes resulting from normal, year-end
audit adjustments and except for the absence of notes;

 

(b) as
soon as available and in any event within five (5) Business Days following the date on which the Borrower files or is required
to file a Quarterly Report on Form 10-Q with the SEC, a consolidated balance sheet for the Borrower and its

 

    -9- 

     

    

 

 any Subsidiary’s, as applicable) Board or any committee thereof (each a “Committee”), whether in person,
by telephone or otherwise as requested by the Observer. Borrower and such Subsidiaries shall notify the Observer in writing at
the same time as furnished to members of the applicable Board or Committee of (i) the date and time for each general or special
meeting of any such Board or Committee and (ii) the adoption of any resolutions or actions by any such Board or any such Committee
by written consent (describing, in reasonable detail, the nature and substance of such action). Borrower and each of its Subsidiaries
shall concurrently deliver to the Observer all notices and any materials delivered to the official members of such Board or Committee
in connection with a meeting or action to be taken by written consent, including a draft of any material resolutions or actions
proposed to be adopted by written consent. The Observer shall be free prior to such meeting or adoption by written consent to contact
members of any applicable Board or Committee and discuss the pending actions to be taken. Notwithstanding the foregoing, the Observer
shall not be entitled to receive materials relating to, or be in attendance for, any discussions relating to topics which (x) are
subject to attorney client privilege, or (y) present a conflict of interest for the Observer. All such discussions and materials
shall be subject to the confidentiality provisions set forth in Section 14.16.

 

Section
8.21. Cash Flow. No later than Wednesday of each week (beginning September 4, 2019), the Obligors shall provide to the
Administrative Agent and the Lenders a 13-week cash flow forecast showing projected cash receipts and cash disbursements (including
referencing line item sources and uses of cash) of the Obligors over the immediately succeeding 13-week period. 

 

Section
8.22. Tucson Real Estate. The Borrower shall have caused Icagen-T (a) to apply the Net Cash Proceeds of the disposition
and sale of Icagen-T’s real property in Tucson, Arizona at which Icagen-T’s research and development site is located
(the “Tucson Real Estate”) to the prepayment in full of its outstanding Indebtedness under the Icagen-T Credit
Agreement and (b) to pay any Net Cash Proceeds from the sale of the Tucson Real Estate remaining after the payment in full of its
outstanding Indebtedness under the Icagen-T Credit Agreement (such remaining Net Cash Proceeds, the “Tucson Real Estate
Sale Proceeds”) to the Borrower, who shall apply such Tucson Real Estate Sale Proceeds to the prepayment of the Term
Loan hereunder in accordance with Section 3.03(b)(ii). 

 

Section
8.23. Series C Capital Raise. On or before November 30, 2019, the Series C Holders or other investors shall have made
new cash equity contributions to the Parent in an aggregate amount of not less than $2,500,000. 

 

Section 8.24 Subordinated
Note. On or before the First Amendment Date, the Parent shall have issued the initial Subordinated Notes,
under which the Parent shall have received $500,000.

 

SECTION 9. NEGATIVE COVENANTS.

 

Each Obligor covenants
and agrees with the Lenders that, until the Commitments have expired or been terminated and all Obligations (other than Warrant
Obligations and contingent obligations as to which no claims have been asserted) have been paid in full indefeasibly in cash:

 

    -10- 

     

    

 

health,
disability or other types of social security benefits, unemployment or other insurance obligations and reclamation and statutory
obligations, in each case incurred in the ordinary course of business;

 

(m) Indebtedness
consisting of letters of credit, letters of guaranty and bankers’ acceptances to the extent incurred in the ordinary course
of business in an aggregate amount not to exceed $1,000,000;

 

(n) Indebtedness
which may be deemed to exist pursuant to any guaranties, indemnities, performance, surety, statutory, appeal or similar obligations
incurred in the ordinary course of business and Indebtedness constituting guaranties in the ordinary course of business of the
obligations of suppliers, customers, franchisees and licensees of the Borrower and its Subsidiaries;

 

(o) Indebtedness
of the Obligors and their Subsidiaries incurred pursuant to the Icagen-T Loan Documents;

 

(p) Indebtedness
of one Obligor to another Obligor, provided that such Indebtedness shall be (A) evidenced by promissory notes and all such
notes shall be subject to a first priority Lien pursuant to the Security Agreement, (B) unsecured, and (C) subordinated in right
of payment to the payment in full of the Obligations (other than the Warrant Obligations) pursuant to the terms of the applicable
promissory notes or an intercompany subordination agreement, in each case in form and substance satisfactory to the Administrative
Agent in its sole discretion;

 

(q) Indebtedness
owed to Pfizer, Inc. pursuant to the terms of that certain Asset Purchase and Collaboration Agreement, dated as of June 26, 2015,
by and among Pfizer Research (NC), Inc. and Borrower, as amended by that certain Amendment to Asset Purchase and Collaboration
Agreement, dated as of July 15, 2016; and

 

(r) (A)
the Bridge Notes, provided that on or prior to the Closing Date, the Bridge Notes have been amended in form and substance
satisfactory to the Administrative Agent to subordinate right of payment to the payment in full of the Obligations (other than
the Warrant Obligations), subject to permitted payments under Section 9.07, and (B) any Permitted Refinancings thereof, provided
that Borrower may elect to increase the interest rate on such Bridge Notes to 12% per annum, payable in accordance with Section
9.07 hereof.

 

(s) Indebtedness
incurred under the Subordinated Notes.

 

Section 9.02. Liens.
Such Obligor will not, and will not permit any of its Subsidiaries to, create, incur, assume or permit to exist any Lien on any
property now owned or hereafter acquired by it or such Subsidiary, except:

 

(a) Liens securing
the Obligations;

 

    -11- 

     

    

 

SECTION
11. EVENTS OF DEFAULT.

 

Section 11.01.
Events of Default. Each of the following events shall constitute an “Event of Default”:

 

(a) Principal
or Interest Payment Default. The Borrower shall fail to pay any principal of or interest on the Term Loan, when and as the
same shall become due and payable, whether at the due date thereof, at a date fixed for prepayment thereof or otherwise.

 

(b) Other
Payment Defaults. Any Obligor shall fail to pay any Obligation (other than an amount referred to in Section 11.01(a)) when
and as the same shall become due and payable, and such failure shall continue unremedied for a period of three (3) Business Days.

 

(c) Representations
and Warranties. Any representation or warranty made or deemed made by or on behalf of any Obligor in this Agreement or any
other Loan Document or any amendment or modification hereof or thereof, or in any report, certificate, financial statement or other
document furnished pursuant to or in connection with this Agreement or any other Loan Document or any amendment or modification
hereof or thereof, shall: (i) prove to have been incorrect when made or deemed made to the extent that such representation or warranty
contains any materiality or Material Adverse Effect qualifier; or (ii) prove to have been incorrect in any material respect when
made or deemed made to the extent that such representation or warranty does not otherwise contain any materiality or Material Adverse
Effect qualifier.

 

(d) Certain
Covenants. Any Obligor shall fail to observe or perform any covenant, condition or agreement contained in Sections 8.03 (with
respect to such Obligor’s existence), 8.11, 8.12, 8.14, 8.16, 8.21, 8.22, 8.23, 8.24,
Section 9 or Section 10.

 

(e) Other
Covenants. Any Obligor shall fail to observe or perform any covenant or agreement contained in this Agreement (other than those
specified in Section 11.01(a), (b) or (d)) or any other Loan Document, and, in the case of any failure that is capable of cure,
such failure shall continue unremedied for a period of thirty (30) or more days.

 

(f) Payment
Default on Other Indebtedness. Any Obligor or any of its Subsidiaries shall fail to make any payment (whether of principal
or interest and regardless of amount) in respect of (i) any Material Indebtedness, or (ii) Indebtedness under the Icagen-T Credit
Agreement, in each case, when and as same shall become due and payable after giving effect to any applicable grace or cure period
as originally provided by the terms of such Indebtedness.

 

(g) Other Defaults
on Other Indebtedness. (i) Any material breach of, or “event of default” or similar event under, the Contract governing
any Material Indebtedness shall occur, or (ii) any event or condition occurs (x) that results in any

 

    -12- 

     

    

 

ANNEX
B

 

Conformed
Credit Agreement

 

(First Amendment)

 

     

     

    

 

Execution
Version

 

 

 

Credit
agreement and guaranty1

 

dated as of

August 31, 2018

among

 

Icagen,
inc.

as the Borrower,

 

Certain
subsidiaries of the borrower from
time to time party
hereto,

as the Subsidiary Guarantors,

 

The
Lenders from Time to Time Party Hereto,

as the Lenders,

 

and

 

Perceptive
Credit Holdings Ii, Lp

as the Administrative Agent

 

U.S. $7,250,000

 

 

 

 

		1	Conformed
to reflect changes from the Forbearance Agreement and First Amendment to Credit Agreement and Guaranty dated as of August 27,
2019.

 

     

     

    

 

Table
of Contents

 

	Section 	Heading	Page
	 	 	 
	Section 1.	Definitions	1
	 	 	 
	Section 1.01.	Certain Defined Terms	1
	Section 1.02.	Accounting Terms and Principles	23
	Section 1.03.	Interpretation	23
	Section 1.04.	Changes to GAAP	24
	 	 	 
	Section 2.	The Commitments
    And The Term Loan	25
	 	 	 
	Section 2.01.	 Term Loan	25
	Section 2.02.	Notes	25
	Section 2.03.	Use of Proceeds	25
	Section 2.04.	Proportionate Shares	26
	 	 	 
	Section 3	Payments Of Principal And Interest	26
	 	 	 
	Section 3.01.	Repayments and Prepayments Generally; Application	26
	Section 3.02.	Interest	26
	Section 3.03.	Prepayments; Prepayment Premium	27
	Section 3.04.	Closing Fees	28
	 	 	 
	Section 4.	Payments, Etc	29
	 	 	 
	Section 4.01.	Payments	29
	Section 4.02.	Computations	29
	Section 4.03.	Set-Off	29
	 	 	 
	Section 5.	Yield Protection, Etc	30
	 	 	 
	Section 5.01.	Additional Costs	30
	Section 5.02.	Illegality	31
	Section 5.03.	Taxes	31
	Section 5.04.	Delay in Requests	35
	 	 	 
	Section 6.	Conditions Precedent	35
	 	 	 
	Section 6.01.	Conditions to the Closing Date	35
	 	 	 
	Section 7.	Representations and Warranties	39
	 	 	 
	Section 7.01.	Power and Authority	39
	Section 7.02.	Authorization; Enforceability	39
	Section 7.03.	Governmental and Other Approvals; No Conflicts	39
	Section 7.04.	Financial Statements; Material Adverse Change	40
	Section 7.05.	Properties	40
	Section 7.06.	No Actions or Proceedings	42

 

    -i-

     

    

 

	Section 7.07.	Compliance with Laws and Agreements	43
	Section 7.08.	Taxes	43
	Section 7.09.	Full Disclosure	43
	Section 7.10.	Investment Company and Margin Stock Regulation	43
	Section 7.11.	Solvency	44
	Section 7.12	Equity Holders; Subsidiaries; Equity Investments	44
	Section 7.13.	Indebtedness and Liens	44
	Section 7.14.	Material Agreements	44
	Section 7.15.	Restrictive Agreements	45
	Section 7.16.	Real Property	45
	Section 7.17.	Pension Matters	45
	Section 7.18.	Priority of Obligations; Collateral; Security Interest	45
	Section 7.19.	Regulatory Approvals	45
	Section 7.20.	Transactions with Affiliates	46
	Section 7.21.	OFAC	46
	Section 7.22.	Anti-Corruption	47
	Section 7.23.	Deposit and Disbursement Accounts	47
	Section 7.24.	Royalty and Other Payments	47
	 	 	 
	Section 8.	Affirmative Covenants	47
	 	 	 
	Section 8.01.	Financial Statements and Other Information	47
	Section 8.02.	Notices of Material Events	50
	Section 8.03.	Existence; Conduct of Business	52
	Section 8.04.	Payment of Obligations	52
	Section 8.05.	Insurance	52
	Section 8.06.	Books and Records; Inspection Rights	53
	Section 8.07.	Compliance with Laws and Other Obligations	53
	Section 8.08.	Maintenance of Properties, Etc	54
	Section 8.09.	Maintenance of Regulatory Approvals and Material Intellectual Property	54
	Section 8.10.	Action Under Environmental Laws	54
	Section 8.11.	Use of Proceeds	54
	Section 8.12.	Certain Obligations Respecting Subsidiaries; Further Assurances	55
	Section 8.13.	Termination of Non-Permitted Liens	56
	Section 8.14.	Intellectual Property	56
	Section 8.15.	ERISA Compliance	56
	Section 8.16.	Cash Management	56
	Section 8.17.	Post-Closing Obligations	56
	Section 8.18.	Milestone	56
	Section 8.19.	Icagen-T Lien	56
	Section 8.20.	Board Observer Rights	57
	Section 8.21.	Cash Flow	57
	Section 8.22.	Tuscon Real Estate	57
	Section 8.23.	Series C Capital Raise	58
	Section 8.24.	Subordinated Notes	58

 

    -ii-

     

    

 

	Section 9.	Negative Covenants	58
	 	 	 
	Section 9.01.	Indebtedness	58
	Section 9.02.	Liens	60
	Section 9.03.	Fundamental Changes and Acquisitions	62
	Section 9.04.	Lines of Business	62
	Section 9.05.	Investments	63
	Section 9.06.	Restricted Payments	64
	Section 9.07.	Payments of Indebtedness	65
	Section 9.08.	Change in Fiscal Year	65
	Section 9.09.	Sales of Assets, Etc	65
	Section 9.10.	Transactions with Affiliates	66
	Section 9.11.	Restrictive Agreements	66
	Section 9.12.	Modifications and Terminations of Material Agreements and Organic Documents	66
	Section 9.13.	Licensing of Intellectual Property	67
	Section 9.14.	Sales and Leasebacks	67
	Section 9.15.	Hazardous Material	67
	Section 9.16.	Accounting Changes	67
	Section 9.17.	Compliance with ERISA	67
	 	 	 
	Section 10.	Financial Covenants	67
	 	 	 
	Section 10.01.	Minimum Liquidity	67
	Section 10.02.	Minimum Revenue	67
	 	 	 
	Section 11.	Events of Default	68
	 	 	 
	Section 11.01.	Events of Default	68
	Section 11.02.	Remedies	71
	Section 11.03.	Additional Remedies	71
	Section 11.04.	Prepayment Premium and Redemption Price	71
	 	 	 
	Section 12.	Guarantee	71
	 	 	 
	Section 12.01.	The Guarantee	71
	Section 12.02.	Obligations Unconditional	72
	Section 12.03.	Reinstatement	73
	Section 12.04.	Subrogation	73
	Section 12.05.	Remedies	73
	Section 12.06.	Instrument for the Payment of Money	73
	Section 12.07.	Continuing Guarantee	73
	Section 12.08.	Rights of Contribution	73
	Section 12.09.	General Limitation on Guarantee Obligations	74

 

    -iii-

     

    

 

	Section 13.	Administrative Agent	74
	 	 	 
	Section 13.01.	Appointment	74
	Section 13.02.	Rights as a Lender	75
	Section 13.03.	Exculpatory Provisions	75
	Section 13.04.	Reliance by Administrative Agent	76
	Section 13.05.	Delegation of Duties	76
	Section 13.06.	Resignation of Agent	76
	Section 13.07.	Non-Reliance on Administrative Agent and Other Lenders	77
	Section 13.08.	Administrative Agent May File Proofs of Claim	78
	Section 13.09.	Collateral and Guaranty Matters; Appointment of Collateral Agent	78
	 	 	 
	Section 14.	Miscellaneous	79
	 	 	 
	Section 14.01.	No Waiver	79
	Section 14.02.	Notices	79
	Section 14.03.	Expenses, Indemnification, Etc	80
	Section 14.04.	Amendments, Etc	81
	Section 14.05.	Successors and Assigns	81
	Section 14.06.	Survival	83
	Section 14.07.	Captions	84
	Section 14.08.	Counterparts	84
	Section 14.09.	Governing Law	84
	Section 14.10.	Jurisdiction, Service of Process and Venue	84
	Section
    14.11.	Waiver of Jury Trial	84
	Section 14.12.	Waiver of Immunity	85
	Section 14.13.	Entire Agreement	85
	Section 14.14.	Severability	85
	Section 14.15.	No Fiduciary Relationship	85
	Section 14.16.	Confidentiality	86
	Section 14.17.	Right of Setoff	86
	Section 14.18.	Judgment Currency	86
	Section 14.19.	USA PATRIOT Act	87
	Section 14.20.	Release of Collateral and Guarantees; Non-Disturbance Agreements 	87
	Section 14.21.	Acknowledgement and Consent to
    Bail-In of EEA Financial Institutions	87

 

    -iv-

     

    

 

Schedules
and Exhibits

 

	Schedule 1	—	Commitments and Warrant Shares
	Schedule 7.05(b)	—	Obligor Intellectual Property
	Schedule 7.05(c)	—	Material Intellectual Property
	Schedule 7.06(a)	—	Certain Litigation
	Schedule 7.06(c)	—	Labor Matters
	Schedule 7.12(a)	—	Equity Holders
	Schedule 7.12(b)	—	Information Regarding Subsidiaries
	Schedule 7.12(c)	—	Equity Investments
	Schedule 7.13(a)	—	Outstanding Indebtedness
	Schedule 7.13(b)	—	Pay-Off Indebtedness
	Schedule 7.13(c)	—	Liens
	Schedule 7.14	—	Material Agreements of Obligors
	Schedule 7.15	—	Restrictive Agreements
	Schedule 7.16	—	Real Property Owned or Leased by Obligors or any Subsidiary
	Schedule 7.17	—	Pension Matters
	Schedule 7.19(b)	—	Regulatory Approvals
	Schedule 7.19(e)	—	Certain Regulatory Matters
	Schedule 7.20	—	Transactions with Affiliates
	Schedule 7.21	—	OFAC Matters
	Schedule 7.23	—	Deposit and Disbursement Accounts
	Schedule 7.24	—	Royalty and Payments
	Schedule 8.17	—	Post-Closing Obligations
	Schedule 9.05	—	Existing Investments
	Schedule 9.10	—	Transactions with Affiliates
	Schedule 9.14	—	Permitted Sales and Leasebacks
	Schedule 10.02	—	Contemplated Collaboration Agreement

 

    -v-

     

    

 

	Exhibit
    A	—	Form
    of Note
	Exhibit
    B	—	[Reserved]
	Exhibit
    C	—	Form
    of Guarantee Assumption Agreement
	Exhibit
    D-1	—	Forms
    of U.S. Tax Compliance Certificate
	Exhibit
    D-2	—	Forms
    of U.S. Tax Compliance Certificate
	Exhibit
    D-3	—	Forms
    of U.S. Tax Compliance Certificate
	Exhibit
    D-4	—	Forms
    of U.S. Tax Compliance Certificate
	Exhibit
    E	—	Form
    of Compliance Certificate
	Exhibit
    F	—	Form
    of Assignment and Assumption
	Exhibit
    G	—	Form
    of Landlord Consent
	Exhibit
    H	—	Form
    of Security Agreement
	Exhibit
    I	—	Form
    of Collateral Questionnaire
	Exhibit
    J	—	Form
    of Patent Security Agreement
	Exhibit
    K	—	Form
    of Trademark Security Agreement
	Exhibit
    L	—	Form
    of Copyright Security Agreement
	Exhibit
    M	—	Form
    of Closing Date Certificate

 

    -vi-

     

    

  

Credit
Agreement and Guaranty

 

Credit Agreement and
Guaranty, dated as of August 31, 2018 (this “Agreement”), among Icagen, Inc., a Delaware corporation (the “Borrower”),
certain of the Borrower’s Subsidiaries from time to time parties hereto, the lenders from time to time party hereto (each,
a “Lender” and collectively, the “Lenders”), and Perceptive Credit Holdings II, LP, as administrative
agent for the Lenders (in such capacity, the “Administrative Agent”).

 

Witnesseth:

 

Whereas,
the Borrower has requested that the Lenders provide
a senior secured term loan facility to the Borrower in an aggregate principal amount of $7,250,000; and

 

Whereas,
the Lenders are willing, on the terms and subject to the conditions set forth herein, to provide such senior secured term loan
facility.

 

Now,
therefore, the parties hereto agree as follows:

 

Section
1. Definitions.

 

Section
1.01. Certain Defined Terms. As used herein, the following terms have the following respective meanings:

 

“Accounting
Change Notice” has the meaning set forth in Section 1.04(a).

 

“Acquisition” means
any transaction, or any series of related transactions, by which any Person directly or indirectly, by means of a take-over
bid, tender offer, amalgamation, merger, purchase of assets, or similar transaction having the same effect as any of the
foregoing, (i) acquires all or substantially all of the assets, business unit or division of any Person, (ii) acquires
control of Equity Interests of a Person representing more than fifty percent (50%) of the ordinary voting power for the
election of directors to the board of directors or other governing body of such Person, or (iii) acquires control of more
than fifty percent (50%) of the Equity Interests in any Person.

 

“Act”
has the meaning set forth in Section 14.19.

 

“Administrative
Agent” has the meaning set forth in the preamble hereto.

 

“Affiliate”
means, with respect to a specified Person, another Person that directly, or indirectly through one or more intermediaries,
Controls or is Controlled by or is under common Control with the Person specified; provided that, with respect to any Lender,
an Affiliate of such Lender shall include, without limitation, all of such Lender’s Related Funds, but shall exclude any
portfolio companies or partners of such Lender or of such Related Funds.

 

     

     

    

 

“Agreement”
has the meaning set forth in the preamble hereto.

 

“Applicable Margin”
means nine and three-quarters percent (9.75%), as such percentage may be increased pursuant to Section 3.02(b).

 

“Asset
Sale” has the meaning set forth in Section 9.09.

 

“Assignment
and Assumption” means an assignment and assumption entered into by a Lender and an assignee of such Lender in substantially
the form of Exhibit F.

 

“Bail-In
Action” means the exercise of any Write-Down and Conversion Powers by the applicable EEA Resolution Authority in respect
of any liability of an EEA Financial Institution.

 

“Bail-In
Legislation” means, with respect to any EEA Member Country implementing Article 55 of Directive 2014/59/EU of the European
Parliament and of the Council of the European Union, the implementing law for such EEA Member Country from time to time which
is described in the EU Bail-In Legislation Schedule.

 

“Bailee
Letter” means a bailee letter in form and substance reasonably satisfactory to the Administrative Agent.

 

“Bankruptcy
Code” means Title 11 of the United States Code entitled “Bankruptcy”.

 

“Board”
means, with respect to any Person, the board of directors (or equivalent management body) of such Person or any committee
thereof duly authorized to act on behalf of such board or management body.

 

“Borrower”
has the meaning set forth in the preamble hereto.

 

“Borrowing”
means the borrowing of the Term Loan on the Closing Date.

 

“Bridge Notes”
means, collectively, those certain 10% Subordinated Promissory Notes in the aggregate principal amount of $500,000, issued
by Borrower pursuant to those certain Securities Purchase Agreements, dated as of August 13, 2018, by and among the Borrower and
the investors from time to time party thereto.

 

“Business
Day” means a day (other than a Saturday or Sunday) on which commercial banks are not authorized or required to close
in New York City.

 

“Calculation
Date” has the meaning set forth in Section 10.02.

 

“Capital
Lease Obligations” means, as to any Person, the obligations of such Person to pay rent or other amounts under a
lease of (or other agreement conveying the right to use) real and/or personal property which obligations are required to be
classified and accounted for as a capital lease on a balance sheet of such Person under GAAP and, for purposes of this
Agreement, the amount of such obligations shall be the capitalized amount thereof, determined in accordance with
GAAP.

 

    -2-

     

    

 

“Casualty
Event” means the damage, destruction or condemnation, as the case may be, of property of any Person or any of its Subsidiaries
excluding any such property with a fair market value as of the date thereof of less than $1,000,000 per occurrence.

 

“Casualty
Event Reinvestment Notice” has the meaning set forth in Section 3.03(b).

 

“Change of Control”
means at any time of determination, either (i) the acquisition of ownership, directly or indirectly, beneficially or of record,
by any Person (or group of Persons acting jointly or otherwise in concert) (other than the Management Investors) of Equity Interests
of the Borrower having more than thirty-five percent (35%) of the aggregate ordinary voting power, determined on a fully diluted
basis; (ii) the Borrower shall cease to own, directly or indirectly, beneficially and of record, one hundred percent (100%) of
the issued and outstanding Equity Interests of each of its Subsidiaries (except for any such securities in the nature of directors’
qualifying shares required pursuant to applicable Law), in each case free and clear of all Liens except Liens created by the Security
Documents; (iii) during any period of twelve (12) consecutive calendar months, the occupation of a majority of the seats (other
than vacant seats) on the board of directors of Borrower by Persons who were neither (a) nominated by the board of directors of
Borrower, nor (b) appointed by directors on the board of directors on the date hereof or so nominated; (iv) the sale of all or
substantially all of the property or business of the Borrower and its Subsidiaries, taken as a whole; or (v) a Key Person Event
shall have occurred.

 

“Claims”
includes litigations, claims, demands, complaints, grievances, actions, suits, orders, charges, indictments, prosecutions,
information (brought by a public prosecutor without grand jury indictment) or other similar processes, assessments or reassessments.

 

“Closing
Date” means August 31, 2018.

 

“Closing Fee” has the meaning set
forth in Section 3.04.

 

“Code” means the Internal Revenue
Code of 1986, as amended.

 

“Collateral”
means any asset or property of any Person in which a Lien is purported to be granted under any Loan Document (or all such property,
as the context may require).

 

“Collateral
Questionnaire” means the collateral questionnaire in substantially the form set forth in Exhibit I which shall be delivered
pursuant to Section 6.01(k).

 

“Commitment”
means the commitment of a Lender to make or otherwise fund a Term Loan and “Commitments” means such commitments
of all Lenders in the aggregate. The amount of each Lender’s Commitment is set forth on Schedule 1. The aggregate Commitments
of all Lenders as of the Closing Date is $7,250,000.

 

“Committee” has the meaning set
forth in Section 8.20.

 

“Commodity Account” means a “Commodity
Account” as defined in the NY UCC.

 

    -3-

     

    

  

“Compliance
Certificate” has the meaning set forth in Section 8.01(d).

 

“Connection
Income Taxes” means Other Connection Taxes that are imposed on or measured by net income (however denominated) or that
are franchise Taxes or branch profits Taxes.

 

“Consolidated Net
Revenue” means revenue of the Borrower and its Subsidiaries determined on a consolidated basis in accordance with GAAP;
provided, however, that Consolidated Net Revenue shall exclude any upfront fees and one-time milestone payments received
by the Borrower or any of its Subsidiaries from a collaboration agreement with a pharmaceutical or biotechnology company other
than those upfront fees in an aggregate amount not to exceed $5,000,000 received by the Borrower or any of its Subsidiaries in
connection with the collaboration agreements contemplated to be entered into on Schedule 10.02.

 

“Contracts”
means any contract, license, lease, agreement, obligation, promise, undertaking, understanding, arrangement, document, commitment,
entitlement or engagement under which a Person has, or will have, any liability or contingent liability (in each case, whether
written or oral, express or implied and whether in respect of monetary or payment obligations, performance obligations or otherwise).

 

“Control”
means, in respect of a particular Person, the possession, directly or indirectly, of the power to direct or cause the direction
of the management or policies of such Person, whether through the ability to exercise voting power, by contract or otherwise.
“Controlling” and “Controlled” have meanings correlative thereto.

 

“Controlled
Account” has the meaning set forth in Section 8.16(a).

 

“Copyright”
means all copyrights, copyright registrations and applications for copyright registrations, including all renewals and extensions
thereof, all rights to recover for past, present or future infringements thereof and all other rights whatsoever accruing thereunder
or pertaining thereto.

 

“Default”
means any Event of Default and any event that has occurred which, upon the giving of notice thereof, or the lapse of time,
or both, would constitute an Event of Default.

 

“Default
Rate” has the meaning set forth in Section 3.02(b).

 

“Deposit
Account” is defined in the Security Agreement.

 

“Designated
Jurisdiction” means any country or territory to the extent that such country or territory is the subject of any Sanction.

 

    -4-

     

    

 

“Disqualified
Equity Interests” means, with respect to any Person, any Equity Interest of such Person that, by its terms (or by
the terms of any security or other Equity Interest into which it is convertible or for which it is exchangeable), or upon the
happening of any event or condition (i) matures or is mandatorily redeemable (other than solely for Qualified Equity
Interests), including pursuant to a sinking fund obligation or otherwise, (ii) is redeemable at the option of the holder
thereof (other than solely for Qualified Equity Interests), in whole or in part, (iii) provides for the scheduled payments of
dividends in cash, or (iv) is or becomes convertible into or exchangeable for Indebtedness or any other Equity Interests that
would constitute Disqualified Equity Interests, in each case, prior to the date that is one hundred and eighty (180) days
after the Maturity Date; provided that, if such Equity Interests are issued pursuant to any plan for the benefit of
directors, officers, employees or consultants of such Person or by any such plan to such directors, officers, employees or
consultants, such Equity Interests shall not constitute Disqualified Equity Interests solely because they may be required to
be repurchased by such Person upon the death, disability, retirement or termination of employment or service of such
director, officer, employee or consultant.

 

“Dollars”
and “$” means lawful money of the United States of America.

 

“EEA
Financial Institution” means (a) any credit institution or investment firm established in any EEA Member Country
which is subject to the supervision of an EEA Resolution Authority, (b) any entity established in an EEA Member Country which
is a parent of an institution described in clause (a) of this definition, or (c) any financial institution established in an
EEA Member Country which is a subsidiary of an institution described in clauses (a) or (b) of this definition and is subject
to consolidated supervision with its parent.

 

“EEA
Member Country” means any of the member states of the European Union, Iceland, Liechtenstein, and Norway.

 

“EEA
Resolution Authority” means any public administrative authority or any person entrusted with public administrative authority
of any EEA Member Country (including any delegee) having responsibility for the resolution of any EEA Financial Institution.

 

“Eligible
Transferee” means and includes (i) any commercial bank, (ii) any insurance company, (iii) any finance company, (iv)
any financial institution, (v) any investment fund that invests in loans, (vi) with respect to any Lender, any of its Affiliates,
and (vii) any other “accredited investor” (as defined in Regulation D of the Securities Act) that is principally in
the business of managing investments or holding assets for investment purposes; provided that so long as no Event of Default
has occurred and is continuing, an Eligible Transferee shall not include any competitor of any Obligor.

 

“Environmental
Law” means any federal, state, provincial or local governmental law, rule, regulation, order, writ, judgment, injunction
or decree, whether U.S. or non-U.S., relating to pollution or protection of the environment or the treatment, storage, disposal,
release, threatened release or handling of hazardous materials, and all local laws and regulations, whether U.S. or non-U.S.,
related to environmental matters and any specific agreements entered into with any Governmental Authorities which include commitments
related to environmental matters.

 

“Equity
Interests” means, with respect to any Person (for purposes of this defined term, an “issuer”), all shares
of, interests or participations in, or other equivalents in respect of such issuer’s capital stock, including all membership
interests, partnership interests or equivalent, and all debt or other securities directly or indirectly exchangeable, exercisable
or otherwise convertible into such issuer’s capital stock, whether outstanding as of the Closing Date or issued after the
Closing Date, and in each case however designated and whether voting or non-voting.

 

    -5-

     

    

 

“ERISA”
means the United States Employee Retirement Income Security Act of 1974, as amended.

 

“ERISA
Affiliate” means, collectively, any Obligor, Subsidiary thereof, and any Person under common control, or treated as
a single employer, with any Obligor or Subsidiary thereof, within the meaning of Section 414(b), (c) or, solely with respect to
Code Section 412 or ERISA Section 302, (m) or (o) of the Code.

 

“ERISA
Event” means (i) a reportable event as defined in Section 4043 of ERISA with respect to a Title IV Plan, excluding,
however, such events as to which the PBGC by regulation has waived the requirement of Section 4043(a) of ERISA that it be notified
within thirty (30) days of the occurrence of such event; (ii) a withdrawal by any Obligor or any ERISA Affiliate thereof from
a Title IV Plan or the termination of any Title IV Plan resulting in liability under Sections 4063 or 4064 of ERISA; (iii) the
withdrawal of any Obligor or any ERISA Affiliate thereof in a complete or partial withdrawal (within the meaning of Section 4203
and 4205 of ERISA) from any Multiemployer Plan if there is any liability therefore, or the receipt by any Obligor or any ERISA
Affiliate thereof of notice from any Multiemployer Plan that it is in insolvency pursuant to 4245 of ERISA; (iv) the filing of
a notice of intent to terminate, the treatment of a plan amendment as a termination under Section 4041 or 4041A of ERISA, or the
commencement of proceedings by the PBGC to terminate a Title IV Plan or Multiemployer Plan; (v) the imposition of liability on
any Obligor or any ERISA Affiliate thereof pursuant to Sections 4062(e) or 4069 of ERISA or by reason of the application of Section
4212(c) of ERISA; (vi) the failure by any Obligor or any ERISA Affiliate thereof to make any required contribution to a Title
IV Plan, or the failure to meet the minimum funding standard of Section 412 of the Code with respect to any Title IV Plan (whether
or not waived in accordance with Section 412(c) of the Code) or the failure to make by its due date a required installment under
Section 430 of the Code with respect to any Title IV Plan or the failure to make any required contribution to a Multiemployer
Plan; (vii) the determination that any Title IV Plan is considered an at-risk plan or a plan in endangered to critical status
within the meaning of Sections 430, 431 and 432 of the Code or Sections 303, 304 and 305 of ERISA; (viii) an event or condition
which would reasonably be expected to constitute grounds under Section 4042 of ERISA for the termination of, or the appointment
of a trustee to administer, any Title IV Plan or Multiemployer Plan; (ix) the imposition of any liability under Title
I or Title IV of ERISA, other than PBGC premiums due but not delinquent under Section 4007 of ERISA, upon any Obligor or any ERISA
Affiliate thereof; (x) an application for a funding waiver under Section 412 of the Code or an extension of any amortization
period pursuant to Section 433 of the Code with respect to any Title IV Plan; or (xi) the imposition of any lien (or the
fulfillment of the conditions for the imposition of any lien) on any of the rights, properties or assets of any Obligor or any
ERISA Affiliate thereof, pursuant to Title IV of ERISA, 303(k) of ERISA or Section 430(k) of the Code.

 

“EU
Bail-In Legislation Schedule” means the EU Bail-In Legislation Schedule published by the Loan Market Association (or
any successor Person), as in effect from time to time.

 

    -6-

     

    

 

“Event
of Default” has the meaning set forth in Section 11.01.

 

“Excess
Funding Guarantor” has the meaning set forth in Section 12.08.

 

“Excess
Payment” has the meaning set forth in Section 12.08.

 

“Exchange
Act” means the Securities Exchange Act of 1934, as amended.

 

“Excluded
Account” means, collectively, (i) accounts used exclusively for payroll, the withheld employee portion of payroll taxes
and other employee wage and benefit payments, and (ii) fiduciary and other trust accounts.

 

“Excluded
Taxes” means any of the following Taxes imposed on or with respect to a Recipient or required to be withheld or deducted
from a payment to a Recipient: (i) Taxes imposed on or measured by net income (however denominated), franchise Taxes and branch
profits Taxes, in each case, (x) imposed as a result of such Recipient being organized under the laws of, or having its principal
office or, in the case of any Lender, its applicable lending office located in, the jurisdiction imposing such Tax (or any political
subdivisions thereof) or (y) that are Other Connection Taxes, (ii) in the case of a Lender, U.S. federal withholding Taxes imposed
on amounts payable to or for the account of such Lender with respect to an applicable interest in a Term Loan or Commitment pursuant
to a law in effect on the date on which (1) such Lender acquires such interest in the Term Loan or Commitment (other than pursuant
to an assignment request by the Borrower pursuant to Section 5.03(h)) or (2) such Lender changes its lending office, except in
each case to the extent that, pursuant to Section 5.03, amounts with respect to such Taxes were payable either to such Lender’s
assignor immediately before such Lender became a party hereto or to such Lender immediately before it changed its lending office,
(iii) Taxes attributable to such Recipient’s failure to comply with Section 5.03(f), and (iv) any withholding Taxes imposed
under FATCA.

 

“Fair
Share” has the meaning set forth in Section 12.08.

 

“FATCA”
means Sections 1471 through 1474 of the Code, as of the date of this Agreement (or any amended or successor version that is
substantively comparable and not materially more onerous to comply with), any current or future regulations or official interpretations
thereof, any agreements entered into pursuant to Section 1471(b)(1) of the Code, and any fiscal or regulatory legislation, rules
or practices adopted pursuant to any intergovernmental agreement, treaty or convention among Governmental Authorities and implementing
such Sections of the Code.

 

“FD&C
Act” means the U.S. Food, Drug and Cosmetic Act of 1938 (or any successor thereto), as amended from time to time, and
the rules, regulations, guidelines, guidance, documents and compliance policy guides issued or promulgated thereunder.

 

“FDA”
means the U.S. Food and Drug Administration and any successor entity.

 

“First
Amendment Date” means August 27, 2019.

 

    -7-

     

    

   

“First Amendment
Term Loan” has the meaning set forth in the Icagen-T Credit Agreement.

 

“Foreign
Lender” means a Lender (or, if the Lender is a disregarded entity for U.S. federal income tax purposes, the Person treated
as the owner of the assets of such Lender for U.S. federal income tax purposes) that is not a U.S. Person.

 

“Foreign
Subsidiary” means a Subsidiary of the Borrower that is not incorporated, formed or organized under the laws of the
United States, any State of the United States or the District of Columbia.

 

“GAAP”
means generally accepted accounting principles in the United States of America, as in effect from time to time, set forth
in the opinions and pronouncements of the Accounting Principles Board and the American Institute of Certified Public Accountants,
in the statements and pronouncements of the Financial Accounting Standards Board and in such other statements by such other entity
as may be in general use by significant segments of the accounting profession that are applicable to the circumstances as of the
date of determination. The definition of GAAP shall be subject to Sections 1.02 and 1.04.

 

“Governmental
Approval” means any required consent, authorization, approval, order, license, franchise, permit, certification, accreditation,
registration, clearance, exemption, filing or notice that is issued or granted by or from (or pursuant to any act of) any applicable
Governmental Authority, including any application or submission related to any of the foregoing.

 

“Governmental
Authority” means any nation, government, branch of power (whether executive, legislative or judicial), state, province
or municipality or other political subdivision thereof and any entity exercising executive, legislative, judicial, monetary, regulatory
or administrative functions of or pertaining to government, including without limitation regulatory authorities, governmental
departments, agencies, commissions, bureaus, officials, ministers, courts, bodies, boards, tribunals and dispute settlement panels,
and other law-, rule- or regulation-making organizations or entities of any state, territory, county, city or other political
subdivision of any country, in each case whether U.S. or non-U.S.

 

“Guarantee”
of or by any Person (the “guarantor”) means any obligation, contingent or otherwise, of the guarantor guaranteeing
or having the economic effect of guaranteeing any Indebtedness or other monetary obligation of any other Person (the “primary
obligor”) in any manner, whether directly or indirectly, and including any obligation of the guarantor, direct or indirect,
(i) to purchase or pay (or advance or supply funds for the purchase or payment of) such Indebtedness or other monetary obligation
or to purchase (or to advance or supply funds for the purchase of) any security for the payment thereof, (ii) to purchase or lease
property, securities or services for the purpose of assuring the owner of such Indebtedness or other monetary obligation of the
payment thereof, (iii) to maintain working capital, equity capital or any other financial statement condition or liquidity of
the primary obligor so as to enable the primary obligor to pay such Indebtedness or other monetary obligation, or (iv) as an account
party in respect of any letter of credit or letter of guaranty issued to support such Indebtedness or monetary obligation; provided
that the term Guarantee shall not include endorsements for collection or deposit in the ordinary course of business. The amount
of any Guarantee shall be deemed to be an amount equal to the stated or determinable amount of the related primary obligation,
or portion thereof, in respect of which such Guarantee is made or, if not stated or determinable, the maximum reasonably anticipated
liability in respect thereof as determined by the guaranteeing Person in good faith.

    -8-

     

    

 

“Guarantee
Assumption Agreement” means a Guarantee Assumption Agreement substantially in the form of Exhibit C by an entity that,
pursuant to Section 8.12(a), is required to become a “Subsidiary Guarantor.”

 

“Guaranteed
Obligations” has the meaning set forth in Section 12.01.

 

“Hazardous
Material” means any substance, element, chemical, compound, product, solid, gas, liquid, waste, by-product,
pollutant, contaminant or material which is hazardous or toxic, and includes, without limitation, (i) asbestos,
polychlorinated biphenyls and petroleum (including crude oil or any fraction thereof) and (ii) any material classified or
regulated as “hazardous” or “toxic” or words of like import pursuant to an Environmental
Law.

 

 

“Hedging
Agreement” means any interest rate exchange agreement, foreign currency exchange agreement, commodity price protection
agreement or other interest or currency exchange rate or commodity price hedging arrangement.

 

“HIPAA”
means the Health Insurance Portability and Accountability Act of 1996, as amended by the Health Information Technology for
Economic and Clinical Health Act of the American Recovery and Reinvestment Act of 2009.

 

 

“Icagen-T” means Icagen-T, Inc.,
a Delaware corporation.

 

“Icagen-T
Credit Agreement” means that certain Credit Agreement and Guaranty, dated as of the date hereof, by and among Icagen-T,
as borrower, the lenders from time to time party thereto and Perceptive Credit Holdings II, LP, as administrative agent (as amended,
restated, supplemented or otherwise modified from time to time).

 

“Icagen-T
Loan Documents” has the meaning ascribed to the term “Loan Documents” in the Icagen-T Credit Agreement.

 

“Icagen-T
MSA” means that certain Master Services Agreement dated as of July 15, 2016, by and among Icagen-T and Sanofi US Services
Inc.

 

“Impermissible
Qualification” means any qualification or exception to the opinion or certification of any independent public
accountant as to any financial statement of the Borrower or any of its Subsidiaries which is of a “going concern”
or similar nature.

 

    -9-

     

    

 

“Indebtedness” of
any Person means, without duplication, (i) all obligations of such Person for borrowed money, (ii) all obligations of such
Person evidenced by bonds, debentures, notes or similar instruments, (iii) all obligations of such Person upon which interest
charges are customarily paid, (iv) all obligations of such Person in respect of the deferred purchase price of property or
services or under conditional sale or other title retention agreements relating to property acquired by such Person, and
including any purchase price adjustments or indemnity requirements incurred in connection with any Permitted Acquisition
(excluding current trade accounts payable incurred in the ordinary course of business), (v) all Indebtedness of others
secured by (or for which the holder of such Indebtedness has an existing right, contingent or otherwise, to be secured by)
any Lien on property owned or acquired by such Person, whether or not the Indebtedness secured thereby has been assumed, (vi)
all Guarantees by such Person of Indebtedness of others, (vii) all Capital Lease Obligations of such Person, (viii) all
obligations, contingent or otherwise, of such Person as an account party in respect of letters of credit and letters of
guaranty, (ix) obligations under any Hedging Agreement, currency swaps, forwards, futures or derivatives transactions, (x)
all obligations, contingent or otherwise, of such Person in respect of bankers’ acceptances, (xi) all obligations of
such Person under license or other agreements containing a guaranteed minimum payment or purchase by such Person, other than
operating leases entered into in the ordinary course of business and any such license or other agreement for the purchase or
use of goods, software and other intangibles, services or supplies in the ordinary course of business and (xii) any
Disqualified Equity Interests of such Person. The Indebtedness of any Person shall include the Indebtedness of any other
entity (including any partnership in which such Person is a general partner) to the extent such Person is liable therefor as
a result of such Person’s ownership interest in or other relationship with such entity, except to the extent the terms
of such Indebtedness provide that such Person is not liable therefor.

 

“Indemnified
Party” has the meaning set forth in Section 14.03(c).

 

“Indemnified
Taxes” means (i) Taxes, other than Excluded Taxes, imposed on or with respect to any payment made by or on account of
any Obligation and (ii) to the extent not otherwise described in clause (i), Other Taxes.

 

“Industrial
Designs” has the meaning set forth in the Security Documents.

 

“Insolvency
Proceeding” means (i) any case, action or proceeding before any court or other Governmental Authority relating to bankruptcy,
reorganization, insolvency, liquidation, receivership, dissolution, winding-up or relief of debtors, or (ii) any general assignment
for the benefit of creditors, composition, marshaling of assets for creditors, or other similar arrangement in respect of any
Person’s creditors generally or any substantial portion of such Person’s creditors, in each case undertaken under
U.S. Federal, state or foreign Law, including the Bankruptcy Code.

 

“Intellectual
Property” means all Patents, Trademarks, Copyright, Industrial Designs, Technical Information and other intellectual
property, whether registered or not and whether existing under, U.S. or non-U.S. Law or jurisdiction, including (without limitation)
all of the following: (i) all applications or registrations relating to the foregoing; (ii) all rights and privileges arising
under any applicable Law with respect to the foregoing; (iii) rights to sue for past, present or future infringements of such
Intellectual Property; and (iv) all rights of the same or similar effect or nature in any jurisdiction corresponding to such Intellectual
Property anywhere in the world.

 

    -10-

     

    

 

“Interest
Period” means (a) the period commencing on (and including) the Closing Date and ending on (and including) the last day
of the calendar month in which the Closing Date occurs, and (b) thereafter, the period beginning on (and including) the first
day of each succeeding calendar month and ending on the earlier of (and including) (x) the last day of such calendar month and
(y) the Maturity Date.

 

“Interest
Rate” means the sum of (i) the Applicable Margin plus (ii) the greater of (x) the Reference Rate and (y) two and one-quarter
percent (2.25%).

 

“Invention”
means any novel, inventive or useful art, apparatus, method, process, machine, manufacture or composition of matter, or any
novel, inventive and useful improvement in any art, method, process, machine, manufacture or composition of matter.

 

“Investment”
means, for any Person: (i) any direct or indirect acquisition or investment by such Person, whether by means of (a) the purchase
or other acquisition of Equity Interests or debt or other securities of another Person, (ii) a loan, advance or capital contribution
to, Guarantee or assumption of debt of, or purchase or other acquisition of any other debt or equity participation or interest
in, another Person, including any partnership or joint venture interest in such other Person, or (iii) the purchase or other acquisition
(in one transaction or a series of transactions) of all or substantially all of the property and assets or business of another
Person or assets constituting a business unit, line of business or division of such Person. The amount of an Investment will be
determined at the time the Investment is made without giving effect to any subsequent changes in value.

 

“IRS”
means the U.S. Internal Revenue Service or any successor agency.

 

“Key
Person” means Richard Cunningham or such other person as may be acceptable by the Lenders as Richard Cunningham’s
replacement pursuant to the definition of “Key Person Event.”

 

“Key Person
Event” means that (a) the Key Person (i) ceases to hold the office of chief executive officer (or equivalent) of Borrower
or fails to be directly and actively involved in the day to day management and direction of Borrower and its Subsidiaries and a
successor reasonably acceptable to the Lenders shall not have been appointed within 90 days of such cessation, or (ii) becomes
or is an employee, manager or officer of any entity other than Borrower and its Subsidiaries and (b) Tim Tyson is no longer serving
as the Chairman of the Board of the Borrower.

 

“Landlord
Consent” means a Landlord Consent substantially in the form of Exhibit G or in a form otherwise reasonably satisfactory
to the Administrative Agent.

 

“Law”
means any U.S. or non-U.S. federal, state, provincial, territorial, municipal or local statute, treaty, rule, guideline, regulation,
ordinance, code or administrative or judicial precedent or authority, including any interpretation or administration thereof by
any Governmental Authority charged with the enforcement, interpretation or administration thereof, and all applicable administrative
orders, directed duties, requests, licenses, authorizations and permits of, and agreements with, any Governmental Authority, in
each case, whether or not having the force of law.

 

    -11-

     

    

 

“Lenders”
has the meaning set forth in the preamble hereto.

 

“Lien”
means any mortgage, lien, pledge, charge or other security interest, or any lease, title retention agreement, easement, right-of-way
or other encumbrance of any kind or character whatsoever or any preferential arrangement that has the practical effect of creating
a security interest.

 

“Loan
Documents” means, collectively, this Agreement, the Notes, the Warrant, the Security Documents, the Series C Preferred
Subordination Agreement, the Guarantee Assumption Agreements and any subordination agreement, intercreditor agreement or other
present or future document, instrument, agreement or certificate delivered to any Lender in connection with this Agreement or
any of the other Loan Documents, in each case, as amended, restated, supplemented or otherwise modified.

 

“Loss”
means any judgment, debt, liability, expense, cost, damage or loss, contingent or otherwise, whether liquidated or unliquidated,
matured or unmatured, disputed or undisputed, contractual, legal or equitable, including loss of value, professional fees, including
reasonable fees and disbursements of legal counsel, and all costs incurred in investigating or pursuing any Claim or any proceeding
relating to any Claim.

 

“Majority
Lenders” means, at any time, Lenders having at such time in excess of fifty percent (50%) of the aggregate Commitments
(or, if such Commitments are terminated, the outstanding principal amount of the Term Loan) then in effect.

 

“Management
Investors” means any current directors, officers, management and/or employees of the Borrower or any of its Subsidiaries
and any of their respective family members, trusts or other estate planning vehicles and any Person owned or controlled by any
of the foregoing, in each case, holding, beneficially or of record, Equity Interests in the Borrower.

 

“Margin Stock” means “margin
stock” within the meaning of Regulations T, U and X.

 

“Material
Adverse Change” and “Material Adverse Effect” mean a material adverse change in or effect on (i) the
business, condition (financial or otherwise), operations or performance of the Borrower and its Subsidiaries, taken as a whole,
(ii) the ability of either (x) the Borrower or (y) the Obligors, taken as a whole, to perform its or their, as the case may be,
obligations under the Loan Documents, as and when due or (iii) the legality, validity, binding effect or enforceability of any
Loan Document or the rights and remedies of any Secured Party under any of the Loan Documents.

 

“Material
Agreement” means (i) any Contract to which any Obligor or any of its properties is bound or subject to and which is
listed on Schedule 7.14, (ii) any other Contract to which any Obligor is a party or a beneficiary from time to time, the
absence or termination of which could reasonably be expected to result in a Material Adverse Effect, and (iii) any other
Contract to which any Obligor is a party that during any period of 12 consecutive months is reasonably expected to (1) result
in payments or receipts (including royalty, licensing or similar payments) made to any Obligor or any of its Subsidiaries in
an aggregate amount in excess of $1,000,000 or (2) require payments or expenditures (including royalty, licensing or similar
payments) to be made by any Obligor or any of its Subsidiaries in an aggregate amount in excess of $1,000,000.

 

    -12-

     

    

 

“Material
Indebtedness” means, at any time, any Indebtedness of any Obligor (excluding intercompany Indebtedness among Obligors
and/or their Subsidiaries to the extent permitted hereunder), the outstanding principal amount of which, individually or in the
aggregate, exceeds $500,000.

 

“Material
Intellectual Property” means (i) all Obligor Intellectual Property listed in Schedule 7.05(c) and (ii) all other Obligor
Intellectual Property, whether currently owned or licensed or acquired, developed or otherwise licensed or obtained after the
date hereof (a) the loss of which could reasonably be expected to have a Material Adverse Effect or (b) that has a fair market
value in excess of $500,000.

 

“Maturity
Date” means August 31, 2022.

  

“Multiemployer
Plan” means any multiemployer plan, as defined in Section 4001(a)(3) of ERISA, to which any ERISA Affiliate incurs or
otherwise has any obligation or liability, contingent or otherwise.

 

“Net Cash Proceeds” means, with respect to the sale
of the Tucson Real Estate by Icagen-T or any Casualty Event, the amount of cash proceeds received (directly or indirectly) from
time to time by or on behalf of any Obligor after deducting therefrom only (w) reasonable fees, costs and expenses related thereto
incurred by such Obligor in connection therewith, (x) amounts required to be repaid on account of any Permitted Indebtedness or
other obligations (other than the Obligations) required to be repaid as a result of such Casualty Event, (y) amounts required to
be reserved in accordance with GAAP for indemnities and against liabilities associated with the property damaged, destructed or
condemned in such Casualty Event and (z) Taxes (including transfer Taxes or net income Taxes) paid or payable in connection therewith;
provided that amounts specified therein in respect of costs, expenses or repayments shall only be deducted from aggregate
cash proceeds to the extent such amounts are (1) actually paid to a Person that is not an Affiliate of the Borrower or any of its
Subsidiaries and (2) properly attributable to such Casualty Event or the sale of the Tucson Real Estate by Icagen-T, as applicable.

 

“Note”
means a promissory note, in substantially the form of Exhibit A hereto, executed and delivered by the Borrower to any Lender
in accordance with Section 2.02.

 

“NY
UCC” means the UCC as in effect from time to time in New York.

 

“Obligations”
means, with respect to any Obligor, all amounts, obligations, liabilities, covenants and duties of every type and description
owing by such Obligor to any Secured Party (including all Guaranteed Obligations and the Warrant Obligations), arising out of,
under, or in connection with, any Loan Document, whether direct or indirect (regardless of whether acquired by assignment), absolute
or contingent, due or to become due, whether liquidated or not, now existing or hereafter arising and however acquired, and whether
or not evidenced by any instrument or for the payment of money, including, without duplication, (i) if such Obligor is the
Borrower, the Term Loan, (ii) all interest accruing under the Loan Documents, whether or not accruing after the filing of any petition
in bankruptcy or after the commencement of any insolvency, reorganization or similar proceeding, and whether or not a claim for
post-filing or post-petition interest is allowed in any such proceeding, and (iii) all other fees, expenses (including fees, charges
and disbursement of counsel), interest, commissions, charges, costs, disbursements, indemnities and reimbursement of amounts paid
and other sums, in each case, chargeable to such Obligor under any Loan Document.

 

    -13-

     

    

 

“Obligor
Intellectual Property” means, at any time of determination, Intellectual Property owned by any of the Obligors at such
time including, without limitation, the Intellectual Property listed on Schedule 7.05(b).

 

“Obligors” means,
collectively, the Borrower and the Subsidiary Guarantors and their respective successors and permitted assigns.

 

“Observer”
has the meaning set forth in Section 8.20.

 

“One-Month
LIBOR” means, with respect to any applicable Interest Period hereunder, the one-month London Interbank Offered Rate
for deposits in Dollars, as determined by the Administrative Agent from the appropriate Bloomberg or Telerate page selected by
the Administrative Agent (or any successor thereto or similar source reasonably determined by the Administrative Agent from time
to time), which shall be that one-month London Interbank Offered Rate for deposits in Dollars in effect at approximately 11:00
a.m. (London, England time) two (2) Business Days prior to the first Business Day of such Interest Period rounded up to the nearest
1/100 of one percent (1%). The Administrative Agent’s determination of interest rates shall be determinative in the absence
of manifest error.

 

“Organic
Document” means, for any Person, its certificate of incorporation, by-laws, certificate of partnership, partnership
agreement, certificate of formation, limited liability agreement, operating agreement and all shareholder agreements, voting trusts
and similar arrangements applicable to such Person’s Equity Interests.

 

“Other
Connection Taxes” means, with respect to any Recipient, Taxes imposed as a result of a present or former connection
between such Recipient and the jurisdiction imposing such Tax (other than connections arising from such Recipient having executed,
delivered, become a party to, performed its obligations under, received payments under, received or perfected a security interest
under, engaged in any other transaction pursuant to or enforced any Loan Document, or sold or assigned an interest in the Term
Loan or Loan Document).

 

“Other
Taxes” means all present or future stamp, court or documentary, intangible, recording, filing or similar Taxes that
arise from any payment made under, from the execution, delivery, performance, enforcement or registration of, from the receipt
or perfection of a security interest under, or otherwise with respect to, any Loan Document, except any such Taxes that are Other
Connection Taxes imposed with respect to an assignment (other than an assignment made at the request of the Borrower pursuant
to Section 5.03(h)).

 

    -14-

     

    

 

 

“Participant”
has the meaning set forth in Section 14.05(e).

 

“Participant
Register” has the meaning set forth in Section 14.05(e).

 

“Patents”
means all patents and patent applications, including the inventions and improvements described and claimed therein together
with the reissues, divisions, continuations, renewals, extensions and continuations in part thereof, all income, royalties, damages
and payments now or hereafter due and/or payable with respect thereto, all damages and payments for past or future infringements
thereof and rights to sue therefor, and all rights corresponding thereto throughout the world.

 

“Payment Date”
means (i) the last day of each Interest Period and (ii) the Maturity Date; provided that, in the event any such day
is not a Business Day, then the payment due on such day shall be payable on the next occurring Business Day.

 

“Pay-Off Indebtedness” means the
Indebtedness listed on Schedule 7.13(b).

 

“Pay-Off Letters”
means each payoff letter in respect of the Pay-Off Indebtedness, in form and substance reasonably satisfactory to the Administrative
Agent.

 

“PBGC”
means the United States Pension Benefit Guaranty Corporation referred to and defined in ERISA and any successor entity performing
similar functions.

 

“Permitted
Acquisition” means any Acquisition by the Borrower or any of its Subsidiaries whether by purchase, merger or otherwise,
of (i) all or substantially all of the assets of any U.S. Person, (ii) more than fifty percent (50%) of all voting Equity Interests
of any U.S. Person (determined on a fully diluted basis), (iii) an entire business line or unit or division of any U.S. Person
or (iv) any other asset or assets (other than assets in the nature of inventory acquired in the ordinary course of business) located
in the United States; provided that:

 

(a)
immediately prior to, and after giving effect thereto, no Default or Event of Default shall have occurred and be continuing or
would reasonably be expected to result therefrom;

 

(b)
all transactions in connection therewith shall be consummated, in all material respects, in accordance with all applicable Laws,
and in conformity in all material respects with all applicable Governmental Approvals;

 

(c) in
the case of the Acquisition of any Equity Interests of any Person, all of such Equity Interests shall be majority owned by Borrower
or its Subsidiaries, and the Borrower shall have taken or caused to be taken, as of the date such Equity Interests are acquired,
all necessary actions to comply with Section 8.12(a), as applicable;

 

(d) in
the case of the Acquisition of assets, all assets acquired shall be owned by Borrower or its Subsidiaries, and the Borrower shall
have taken or caused to be taken, as of the date the assets are acquired, all necessary actions to comply with Section 8.12(a),
as applicable;

 

    -15-

     

    

 

(e) such
Person (in the case of an Acquisition of Equity Interests) or assets (in the case of an Acquisition of assets or a division) shall
be engaged or used, as the case may be, in substantially the same business or lines of business in which the Borrower and its
Subsidiaries are engaged as of the Closing Date or a business reasonably related, incidental or complimentary thereto or a reasonable
extension thereof or a business having a similar customer base;

 

(f) on
a pro forma basis after giving effect to such Acquisition, the Borrower and its Subsidiaries shall be in compliance with the financial
covenants set forth in Section 10;

 

(g) the
aggregate consideration for all such Acquisitions together with all Acquisitions permitted under the Icagen-T Credit Agreement
does not exceed $1,000,000 in cash in any fiscal year;

 

(h) the
Borrower shall have provided the Administrative Agent with at least fifteen (15) Business Days’ prior written notice of any
such Acquisition, together with summaries, prepared in reasonable detail, of all due diligence conducted by or on behalf of the
Borrower or the applicable Subsidiary prior to such Acquisition;

 

(i)
the Administrative Agent shall have received a certificate of a Responsible Officer of the Borrower (prepared in reasonable detail),
certifying as to any contingent liabilities and, to the extent applicable, prospective research and development costs associated
with the Person or assets being acquired; and

 

(j)
all of the assets or Equity Interests acquired in connection with such Acquisition shall be of a U.S. Person.

 

“Permitted
Cash Equivalent Investments” means (i) marketable direct obligations issued or unconditionally guaranteed by the United
States or any agency or any State thereof having maturities of not more than one (1) year from the date of acquisition, (ii) commercial
paper maturing no more than one (1) year after its creation and having the highest rating from either Standard & Poor’s
Ratings Group or Moody’s Investors Service, Inc., (iii) time deposits with, or insured certificates of deposit or banker’s
acceptances of, any commercial bank that (x) is organized under the laws of the United States or is the principal banking subsidiary
of a bank holding company organized under the laws of the United States and is a member of the Federal Reserve System and (y)
has combined capital and surplus of at least $1,000,000,000, in each case with maturities of not more than one (1) year from the
date of acquisition, and (iv) any money market funds at least ninety-five percent (95%) of the assets of which constitute investments
of the type described in clauses (i), (ii) or (iii) above.

 

“Permitted
Indebtedness” means any Indebtedness permitted under Section 9.01.

 

    -16-

     

    

 

“Permitted
Liens” means any Liens permitted under Section 9.02.

 

“Permitted
Priority Liens” means Liens permitted under any of the clauses (b), (c), (d), (e), (f) or (i) of Section 9.02.

 

“Permitted
Refinancing” means, with respect to any Permitted Indebtedness, any extension, renewal, replacement or refinancing of
such Indebtedness; provided that such extension, renewal, replacement or refinancing (i) shall not increase the outstanding
principal amount of such Indebtedness except by accrued and unpaid interest and premiums thereon and fees and expenses associated
with such extension, renewal, replacement or refinancing, (ii) contains terms relating to outstanding principal amount, amortization,
maturity, collateral (if any) and subordination (if any), and other material terms taken as a whole no less favorable in any material
respect to the Borrower and its Subsidiaries or the Secured Parties than the terms of any agreement or instrument governing the Indebtedness
being extended, renewed, replaced or refinanced, (iii) shall have an applicable interest rate or equivalent yield which does not
exceed the interest rate or equivalent yield of the Indebtedness being extended, renewed, replaced or refinanced, (iv) shall not
contain any new requirement to grant any Lien or to give any Guarantee that was not an existing requirement of the Indebtedness
being extended, renewed, replaced or refinanced and (v) after giving effect to such extension, renewal, replacement or refinancing,
no Default or Event of Default shall have occurred (or would reasonably be expected to occur) as a result thereof.

 

“Person”
means any individual, corporation, company, voluntary association, partnership, limited liability company, joint venture,
trust, unincorporated organization or Governmental Authority or other entity of whatever nature.

 

“PIK Interest”
has the meaning set forth in the Icagen-T Credit Agreement.

 

“Prepayment Date” has the meaning
set forth in Section 3.03(a)(i).

 

“Prepayment
Premium” means with respect to any prepayment of principal of the Term Loan referenced in Section 3.03(a) occurring (i)
on or prior to the first anniversary of the Closing Date, an amount equal to twelve percent (12%) of the aggregate outstanding
principal amount of the Term Loan being prepaid, (ii) at any time after the first anniversary of the Closing Date and on or prior
to the second anniversary of the Closing Date, an amount equal to eight percent (8%) of the aggregate outstanding principal amount
of the Term Loan being prepaid; and (iii) at any time after the second anniversary of the Closing Date and on or prior to the third
anniversary of the Closing Date, an amount equal to three percent (3%) of the aggregate outstanding principal amount of the Term
Loan being prepaid on such Prepayment Date.

 

“Prepayment Price” has the meaning
set forth in Section 3.03(a)(i).

 

“Product”
means any future product developed, manufactured, licensed, marketed, sold or otherwise commercialized by any Obligor, including
any such product in development or which may be developed, in each case related to Material Intellectual Property.

 

    -17-

     

    

 

“Product
Commercialization and Development Activities” means, with respect to any Product, any combination of research, development,
manufacture, importation, use, sale, storage, design, labeling, marketing, promotion, supply, distribution, testing, packaging,
purchasing or other commercialization activities, receipt of payment in respect of any of the foregoing, or like activities the
purpose of which is to commercially exploit such Product.

 

“Prohibited
Payment” means any bribe, rebate, payoff, influence payment, kickback or other payment or gift of money or anything
of value (including meals or entertainment) to any officer, employee or ceremonial office holder of any government or instrumentality
thereof, political party or supra-national organization (such as the United Nations), any political candidate, any royal family
member or any other person who is connected or associated personally with any of the foregoing that is prohibited under any applicable
Law for the purpose of influencing any act or decision of such payee in his official capacity, inducing such payee to do or omit
to do any act in violation of his lawful duty, securing any improper advantage or inducing such payee to use his influence with
a government or instrumentality thereof to affect or influence any act or decision of such government or instrumentality.

 

“Proportionate
Share” means, with respect to any Lender, the percentage obtained by dividing (i) the sum of the Commitment (or, if
the Commitments are terminated, the outstanding principal amount of the Term Loan) of such Lender then in effect by (ii) the sum
of the Commitments (or, if the Commitments are terminated, the outstanding principal amount of the Term Loan) of all Lenders then
in effect.

 

“Qualified
Equity Interest” means, with respect to any Person, any Equity Interest of such Person that is not a Disqualified Equity
Interest.

 

“Real Property Security Documents” means any Landlord
Consents, Bailee Letters, any mortgage or deed of trust or any other real property security document executed or required hereunder
to be executed by any Obligor and granting a security interest in real property owned or leased (as tenant) by any Obligor in favor
of the Secured Parties.

 

“Recipient”
means any Lender or the Administrative Agent.

 

“Reference
Rate” means One-Month LIBOR; provided that, if One-Month LIBOR can no longer be determined by the Administrative
Agent (in its sole discretion) or any Governmental Authority having jurisdiction over the quotation or determination of the London
Interbank Offered Rates declares that it will no longer supervise or sanction such rates for purposes of interest rates on loans,
then the Reference Rate for purposes hereof and of each other Loan Document shall be a comparable rate as may be selected by the
Administrative Agent in its reasonable discretion.

 

“Register”
has the meaning set forth in Section 14.05(d).

 

“Regulation
T” means Regulation T of the Board of Governors of the Federal Reserve System, as amended.

 

    -18-

     

    

 

“Regulation
U” means Regulation U of the Board of Governors of the Federal Reserve System, as amended.

 

“Regulation
X” means Regulation X of the Board of Governors of the Federal Reserve System, as amended.

 

“Regulatory
Approvals” means any registrations, licenses, authorizations, permits or approvals issued by any Governmental Authority
and applications or submissions related to any of the foregoing.

 

“Regulatory
Authority” means any Governmental Authority that is concerned with or has regulatory oversight with respect to the use,
control, safety, efficacy, reliability, manufacturing, marketing, distribution or sale relating to the business of an Obligor,
including the FDA and all equivalent of such agencies in other jurisdictions.

 

“Related
Fund” means, with respect to any Lender, a fund which is managed or advised by the same investment manager or investment
adviser as such Lender or, if it is managed by a different investment manager or investment adviser, a fund whose investment manager
or investment adviser is an Affiliate of the investment manager or investment adviser of such Lender.

 

“Related
Parties” has the meaning set forth in Section 14.16.

 

“Resignation
Effective Date” has the meaning set forth in Section 13.06(a).

 

“Responsible
Officer” of any Person means each of the president, chief executive officer, chief financial officer and similar officer
of such Person.

 

“Restricted Payment”
means any dividend or other distribution (whether in cash, securities or other property) with respect to any Equity Interests
of the Borrower or any of its Subsidiaries, or any payment (whether in cash, securities or other property), including any (i)
sinking fund or similar deposit, on account of the purchase, redemption, retirement, acquisition, cancellation or termination
of any such shares of capital stock of the Borrower or any of its Subsidiaries, (ii) payment of interest, principal or fees in
respect of Indebtedness owed by the Borrower to any holder of any capital stock of the Borrower or (iii) option, warrant or other
right to acquire any such shares of capital stock of the Borrower or any of its Subsidiaries.

 

“Restrictive
Agreement” means any indenture, agreement, instrument or other arrangement that prohibits, restricts or imposes any
condition upon (i) the ability of the Borrower or any other Obligor to create, incur or permit to exist any Lien (other than Permitted
Liens) upon any of its property or assets (other than (x) customary provisions in contracts (including without limitation leases
and licenses of Intellectual Property) restricting the assignment thereof or, in the case of any lease or license, the sublease
or sublicense or other disposition of the applicable leased or licensed property, (y) restrictions or conditions imposed by any
agreement governing secured Permitted Indebtedness permitted under Section 9.01(g), to the extent that such restrictions or conditions
apply only to the property or assets securing such Indebtedness and (z) restrictions in agreements related to any Asset Sale to
the extent such Asset Sale would be a permitted Asset Sale
under this Agreement), or (ii) the ability of any Subsidiary to pay dividends or other distributions with respect to any shares
of its capital stock or to make or repay loans or advances to the Borrower or any other Obligor or the ability of any Subsidiary
to guarantee Indebtedness of the Borrower or any other Obligor to the extent such guarantee is required by Section 8.12.

 

    -19-

     

    

 

“Sanction”
means any international economic sanction administered or enforced by the United States Government (including, without limitation,
OFAC), the United Nations Security Council, the European Union or its Member States, Her Majesty’s Treasury or other similar
relevant sanctions authority.

 

“SEC” means the U.S. Securities
and Exchange Commission.

 

“Secured Parties”
means the Lenders, the Administrative Agent, each other Indemnified Party, any other holder of any Obligation, and any of their
respective permitted transferees or assigns.

 

“Securities
Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

 

“Security
Agreement” means the Security Agreement, dated as of the Closing Date and substantially in the form of Exhibit H hereto,
among the grantors party thereto and the Administrative Agent, granting a security interest in the Obligors’ personal property
in favor of the Administrative Agent.

 

“Security
Documents” means, collectively, the Security Agreement, each Short-Form IP Security Agreement, each Real Property Security
Document and each other security document, control agreement or financing statement required or recommended to perfect Liens in
favor of the Secured Parties for purposes of securing the Obligations.

 

“Securities Account” has the meaning
given to it in Section 8-501(a) of the NY UCC. “Series C Holders” means any holder of the Series C Preferred
Stock.

 

“Series C
Preferred Stock” means the Borrower’s Series C Convertible Redeemable Preferred Stock.

 

“Series C
Preferred Subordination Agreement” means that certain Series C Preferred Subordination Agreement, dated as of the Closing
Date, among the Series C Holders, the Borrower and the Administrative Agent, pursuant to which the Series C Holders subordinate
all rights to cash payments owed such Series C Holders by Borrower due to such Series C Holders’ ownership of Series C Preferred
Stock until the Obligations (other than Warrant Obligations) have been paid in full.

 

“Short-Form
IP Security Agreements” means short-form patent, trademark or copyright (as the case may be) security agreements,
substantially in the forms of Exhibits J, K and L to this Agreement, as applicable, entered into by one (1) or more Obligors
in favor of the Administrative Agent for the benefit of each Secured Party.

 

    -20-

     

    

 

“Solvent”
means, with respect to any Person at any time, that (i) the present fair saleable value of the property of such Person is greater
than the total amount of liabilities (including contingent liabilities) of such Person, (ii) the present fair saleable value of
the property of such Person is not less than the amount that will be required to pay the probable liability of such Person on its
debts as they become absolute and matured and (iii) such Person has not incurred and does not intend to, and does not believe that
it will, incur debts or liabilities beyond such Person’s ability to pay such debts and liabilities as they mature.

 

“Subordinated
Notes” means those certain subordinated promissory notes issued pursuant to that certain Securities Purchase Agreement,
dated August 27, 2019, among Parent and the investors party thereto and in an aggregate principal amount not to exceed $2,500,000.

 

“Subsidiary”
means, with respect to any Person (the “parent”) at any date, any corporation, limited liability company,
partnership, association or other entity the accounts of which would be consolidated with those of the parent in the parent’s
consolidated financial statements if such financial statements were prepared in accordance with GAAP as of such date, as well as
any other corporation, limited liability company, partnership, association or other entity of which securities or other ownership
interests representing more than fifty percent (50%) of the equity or more than fifty percent (50%) of the ordinary voting power
or, in the case of a partnership, more than fifty percent (50%) of the general partnership interests are, as of such date, directly
or indirectly, owned, controlled or held.

 

“Subsidiary
Guarantors” means each Subsidiary of the Borrower identified under the caption “SUBSIDIARY GUARANTORS” on
the signature pages hereto and each Subsidiary of the Borrower that becomes, or is required to become, a “Subsidiary Guarantor”
after the date hereof pursuant to Section 8.12(a).

 

“Taxes”
means all present or future taxes, levies, imposts, duties, deductions, withholdings (including backup withholding), assessments,
fees or other charges imposed by any Governmental Authority, including any interest, additions to tax or penalties applicable thereto.

 

“Technical
Information” means all trade secrets and other proprietary or confidential information, public information, non-proprietary
know-how, any information of a scientific, technical, or business nature in any form or medium, standards and specifications, conceptions,
ideas, innovations, discoveries, Invention disclosures, all documented research, developmental, demonstration or engineering work
and all other information, data, plans, specifications, reports, summaries, experimental data, manuals, models, samples, know-how,
technical information, systems, methodologies, computer programs, information technology and any other information.

 

“Term Loan”
means each loan advanced by a Lender pursuant to Section 2.01(a). For purposes of clarification, any calculation of the aggregate
outstanding principal amount of the Term Loan on any date of determination shall mean the aggregate principal amount of the Term
Loan made pursuant to Section 2.01(a) that has not yet been repaid as of such date.

 

    -21-

     

    

 

“Title
IV Plan” means an employee benefit plan (as defined in Section 3(3) of ERISA) other than a Multiemployer Plan (i) that
is or within the last six years was maintained or sponsored by any Obligor or any ERISA Affiliate thereof or to which any Obligor
or any ERISA Affiliate thereof within the last six years made, or was obligated to make, contributions, and (ii) that is or was
subject to Section 412 of the Code, Section 302 of ERISA or Title IV of ERISA.

 

“Trademarks”
means all trade names, trademarks and service marks, logos, trademark and service mark registrations, and applications for
trademark and service mark registrations, including all renewals of trademark and service mark registrations, all rights to recover
for all past, present and future infringements thereof and all rights to sue therefor, and all rights corresponding thereto throughout
the world, together, in each case, with the product lines and goodwill of the business connected with the use thereof.

 

“Transactions”
means the negotiation, preparation, execution, delivery and performance by each Obligor of this Agreement and the other Loan
Documents to which such Obligor is (or is intended to be) a party, the making of the Term Loan hereunder, and all other transactions
contemplated pursuant to this Agreement and the other Loan Documents.

 

“Tucson Real Estate” has the meaning
set forth in Section 8.22.

 

“Tucson Real Estate Sale Proceeds”
has the meaning set forth in Section 8.22.

 

“UCC”
means, with respect to any applicable jurisdictions, the Uniform Commercial Code as in effect in such jurisdiction, as may
be modified from time to time.

 

“United States”
or “U.S.” means the United States of America, its fifty (50) states and the District of Columbia.

 

“U.S. Person”
means a “United States person” within the meaning of Section 7701(a)(30) of the Code.

 

“U.S. Tax Compliance Certificate” has
the meaning set forth in Section 5.03(f)(ii)(B).

 

“Warrant”
means the warrant to be delivered to the Administrative Agent pursuant to Section 6.01 on the Closing Date, that, among other
things, grants the holder thereof the right to purchase the number of shares of common stock of the Borrower as indicated on the
Warrant Shares table on Schedule 1, as the Warrant may be amended, replaced or otherwise modified pursuant to the terms thereof.

 

“Warrant Obligations”
means all Obligations of the Borrower arising out of, under or in connection with the Warrant.

 

“Withholding Agent” means the Borrower,
any Obligor and the Administrative Agent.

 

“Write-Down
and Conversion Powers” means, with respect to any EEA Resolution Authority, the write-down and conversion powers of
such EEA Resolution Authority from time to time under the Bail-In Legislation for the applicable EEA Member Country, which
write-down and conversion powers are described in the EU Bail-In Legislation Schedule.

 

    -22-

     

    

 

Section 1.02. Accounting
Terms and Principles. Unless otherwise specified, all accounting terms used in each Loan Document shall be interpreted, and
all accounting determinations and computations thereunder (including under Section 10 and any definitions used in such calculations)
shall be made, in accordance with GAAP; provided that, for purposes of determining compliance with any covenant contained
in Section 9 or the existence of any Default or Event of Default under Section 11, in determining whether any lease is required
to be accounted for as a capital lease or an operating lease, such determination shall be made based on GAAP as in effect on the
date of this Agreement. Unless otherwise expressly provided, all financial covenants and defined financial terms shall be computed
on a consolidated basis for the Borrower and its Subsidiaries, in each case, without duplication.

 

Section 1.03. Interpretation.
For all purposes of this Agreement, except as otherwise expressly provided herein or unless the context otherwise requires,

 

(a) the
terms defined in this Agreement include the plural as well as the singular and vice versa;

 

(b) words
importing gender include all genders;

 

(c) any
reference to a Section, Annex, Schedule or Exhibit refers to a Section of, or Annex, Schedule or Exhibit to, this Agreement;

 

(d) any
reference to “this Agreement” refers to this Agreement, including all Annexes, Schedules and Exhibits hereto, and the
words herein, hereof, hereto and hereunder and words of similar import refer to this Agreement and its Annexes, Schedules and Exhibits
as a whole and not to any particular Section, Annex, Schedule, Exhibit or any other subdivision;

 

(e) references
to days, months and years refer to calendar days, months and years, respectively;

 

(f) all
references herein to “include” or “including” shall be deemed to be followed by the words “without
limitation”;

 

(g) the
word “from” when used in connection with a period of time means “from and including” and the word “until”
means “to but not including”;

 

(h) where
any provision in this Agreement or any other Loan Document refers to an action to be taken by any Person, or an action which such
Person is prohibited from taking, such provision shall be applicable whether such action is taken directly or indirectly;

 

    -23-

     

    

 

(i) references
to any Lien granted or created hereunder or pursuant to any other Loan Document securing any Obligations shall be deemed to be
a Lien for the benefit of the Secured Parties;

 

(j) the
words “asset” and “property” shall be construed to have the same meaning and effect and to refer broadly
to any and all assets and properties, whether tangible or intangible, real or personal, including cash, securities, rights under
contractual obligations and permits and any right or interest in any such assets or property except where otherwise noted herein;

 

(k) accounting
terms not specifically defined herein (other than “property” and “asset”) shall be construed in accordance
with GAAP;

 

(l) the
word “will” shall be construed to have the same meaning as the word “shall”; and

 

(m) a
Schedule shall refer to those Schedules provided as of the date hereof and as may be further updated in accordance with the terms
of this Agreement (which updates, for the avoidance of doubt, shall be acceptable to the Administrative Agent unless such updates
reflect an item that is otherwise prohibited under this Agreement on the date thereof).

 

Unless otherwise expressly provided herein,
references to organizational documents, agreements (including the Loan Documents) and other contractual instruments shall be deemed
to include all subsequent amendments, restatements, extensions, supplements and other modifications thereto permitted by the Loan
Documents.

 

Section 1.04. Changes
to GAAP. Subject to Section 1.02, if, after the date hereof, any change occurs in GAAP or in the application thereof and such
change would cause any amount required to be determined for the purposes of the covenants to be maintained or calculated pursuant
to Section 8, 9 or 10 to be materially different than the amount that would be determined prior to such change, then:

 

(a) the
Borrower will provide a detailed notice of such change (an “Accounting Change Notice”) to the Administrative
Agent within thirty (30) days after a Responsible Officer’s learning that such change would so impact the covenants and calculations
hereunder;

 

(b) either
the Borrower or the Administrative Agent may indicate within ninety (90) days following the date of the Accounting Change Notice
that they wish to revise the method of calculating such covenants or amend any such amount, in which case the parties will in good
faith attempt to agree upon a revised method for calculating the financial covenants;

 

    -24-

     

    

 

(c) until
the Borrower and the Administrative Agent have reached agreement on such revisions, such covenants or amounts as set forth herein
shall remain in effect and will be determined without giving effect to such change;

 

(d) if
no party elects to revise the method of calculating the covenants or amounts, then the covenants or amounts will not be revised
and will be determined in accordance with GAAP without giving effect to such change; and

 

(e) any
Event of Default arising as a result of such change which is cured by operation of this Section 1.04 shall be deemed to be of no
effect ab initio.

 

Section 2. The
Commitments and the Term Loan.

 

Section 2.01. Term Loan.

 

(a) The
Term Loan.

 

(i) Subject
to the terms and conditions of this Agreement and relying on the representations and warranties set forth herein, each Lender,
severally and not jointly, agrees to provide its share of the Term Loan to Borrower on the Closing Date in Dollars in a principal
amount equal to such Lender’s Commitment. No Lender shall have an obligation to make a Term Loan in excess of such Lender’s
Commitment.

 

(ii) Borrower
may make one borrowing under the Commitments which shall be on the Closing Date. Subject to Section 3.03, all amounts owed hereunder
with respect to the Term Loan shall be paid in full no later than the Maturity Date. Each Lender’s Commitment shall terminate
immediately and without further action on the Closing Date after giving effect to the funding of such Lender’s Commitment
on such date.

 

(iii) Upon
satisfaction or waiver of the conditions precedent set forth in this Agreement, the Lenders shall make the proceeds of the Term
Loan available to Borrower on the Closing Date.

 

(b) No amounts paid or prepaid with respect
to the Term Loan may be reborrowed. Any term or provision hereof (or of any other Loan Document) to the contrary
notwithstanding, the Term Loan made to the Borrower will be denominated solely in Dollars and will be repayable solely in
Dollars and no other currency.

 

Section 2.02. Notes.
If requested by any Lender, the Term Loan of such Lender shall be evidenced by one or more Notes. If so requested, the Borrower
shall prepare, execute and deliver to the Administrative Agent such promissory note(s) payable to the Lenders (or, if requested
by the Lenders, to the Lenders and their registered permitted assigns) substantially in the form attached hereto as Exhibit A.

 

Section 2.03. Use
of Proceeds. The Borrower shall use the proceeds of the Term Loan solely (a) for general corporate purposes, including, without
limitation, business development and licensing
purposes, (b) to refinance the Pay-Off Indebtedness and (c) to pay the fees, costs and expenses associated with the Transactions.

 

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Section
2.04. Proportionate Shares. The Term Loan shall be made, and all participations purchased, by the Lenders simultaneously and
proportionately to their respective Proportionate Shares, it being understood that no Lender shall be responsible for any default
by any other Lender in such other Lender’s obligation to make a Term Loan hereunder or purchase a participation required
hereby nor shall the Commitment of any Lender be increased or decreased as a result of a default by any other Lender in such Lender’s
obligation to make a Term Loan requested hereunder or purchase a participation required hereby.

 

Section 3 Payments
of Principal and Interest.

 

Section
3.01. Repayments and Prepayments Generally; Application. (a) There will be no scheduled amortization payments of principal
on the Term Loan prior to the second (2nd) anniversary of the Closing Date.

 

(b) Commencing
with the Payment Date occurring immediately after the second (2nd) anniversary of the Closing Date and on each Payment Date occurring
thereafter, the Borrower shall make a scheduled amortization payment of principal on the Term Loan in an amount equal to 1.0% of
the aggregate principal amount of the Term Loan borrowed on the Closing Date.

 

(c) Any
term or provision hereof to the contrary notwithstanding, on the Maturity Date the Borrower shall repay the entire remaining outstanding
balance of the Term Loan in full in cash.

 

(d) The
Borrower agrees that the Term Loan, and any fees or interest accrued or accruing thereon, shall be repaid and prepaid solely in
Dollars pursuant to the terms of this Section 3. Except as otherwise provided in this Agreement, each payment (including each repayment
and prepayment) by the Borrower will be deemed to be made ratably in accordance with the Lenders’ Proportionate Share.

 

Section 3.02. Interest.

 

(a) Interest
Generally. The outstanding principal amount of the Term Loan, as well as the amount of all other outstanding Obligations, shall
accrue interest at the Interest Rate.

 

(b) Default
Interest. Notwithstanding the foregoing, upon the occurrence and during the continuance of any Event of Default, the Applicable
Margin shall increase automatically by four percent (4%) per annum (the Interest Rate, as increased pursuant to this Section 3.02(b),
being the “Default Rate”). If any Obligation is not paid when due under any applicable Loan Document (after
giving effect to any applicable grace period), the amount thereof shall accrue interest at the Default Rate.

 

(c) Interest
Payment Dates. Accrued interest on the Term Loan shall be payable in cash and in arrears on each Payment Date with respect
to the most recently completed Interest Period, and upon the payment or prepayment of the Term Loan (on the principal amount being
so paid or prepaid); provided that interest
payable at the Default Rate shall also be payable from time to time on demand by the Administrative Agent.

 

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(d) Maximum
Rate. Notwithstanding any other provision of this Agreement, in no event will any interest or rates referred to herein
exceed the maximum interest rate permitted by applicable law. If such maximum interest rate would be exceeded by the terms
hereof, the rates of interest payable hereunder will be reduced to the extent necessary so that such rates (together with any
fees or other amounts which are construed by a court of competent jurisdiction to be interest or in the nature of interest)
equal the maximum interest rate permitted by applicable law, and any overpayment of interest received by the Lenders before
such rates are so construed will be applied, forthwith after determination of such overpayment, to pay all then outstanding
interest, and thereafter to pay outstanding principal.

 

Section 3.03. Prepayments; Prepayment Premium.

 

(a) Optional
Prepayments. (i) Subject to prior written notice pursuant to clause (ii) below, the Borrower shall have the right to optionally
prepay, in whole or in part, the outstanding principal amount of the Term Loan on any Business Day (a “Prepayment Date”)
for an aggregate amount equal to the sum of (x) the aggregate principal amount of the Term Loan being prepaid, (y) the applicable
Prepayment Premium on the principal amount of the Term Loan being prepaid and (z) any accrued but unpaid interest on the principal
amount of the Term Loan being prepaid (such aggregate amount, the “Prepayment Price”).

 

(ii) A notice of optional
prepayment shall be effective only if received by the Administrative Agent not later than 2:00 p.m. (Eastern time) on a date not
less than one (1) Business Day prior to the proposed Prepayment Date. Each notice of optional prepayment shall specify the Prepayment
Price and the principal amount to be prepaid, as well as the Prepayment Date.

 

(b) Mandatory
Prepayments. (i) Subject to the proviso below, upon the occurrence of any Casualty Event, the Borrower shall make a
mandatory prepayment of the Term Loan in an aggregate amount equal to the sum of (x) one hundred percent (100%) of the Net
Cash Proceeds received by the Borrower or any other Obligor as a result of such Casualty Event up to the principal amount
outstanding of the Term Loan, and (y) any accrued but unpaid interest on such principal amount of the Term Loan being
prepaid; provided that so long as no Default or Event of Default has occurred and is continuing at the time the
Borrower or any Obligor shall have received such Net Cash Proceeds, if, within five (5) Business Days following the
occurrence of any such Casualty Event, a Responsible Officer of the Borrower may deliver to the Administrative Agent a notice
(each, a “Casualty Event Reinvestment Notice”) to the effect that the Borrower or applicable Obligor
intends to apply the Net Cash Proceeds from such Casualty Event to acquire, replace or rebuild the property subject to such
Casualty Event or to the cost of purchase or construction of other assets useful in the business of the Borrower or its
Subsidiaries, then such Net Cash Proceeds of such Casualty Event may be applied for such purpose in lieu of such mandatory
prepayment, provided further that, in the event that Net Cash Proceeds have not been so applied within one hundred
eighty (180) days following the occurrence of such Casualty Event, the Borrower shall make a mandatory prepayment of the Term
Loan in an aggregate amount equal to the sum of (A) one hundred percent (100%) of the unused balance of such Net Cash
Proceeds received by the Borrower or any other Obligor as a result of such Casualty Event up to the principal amount
outstanding of the Term Loan, and (B) any accrued but unpaid interest on such principal amount of the Term Loan being
prepaid, provided, further, that to the extent that the property subject to the Casualty Event is Collateral, then any
such acquired, replaced, repaired, purchased or constructed property shall be Collateral in which the Administrative Agent,
for the benefit of the Lenders, has been granted a security interest under the Security Documents.

 

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(ii) Upon receipt of the Tucson Real
Estate Sale Proceeds in accordance with Section 8.22, the Borrower shall make a mandatory prepayment of the Obligations in an
aggregate amount equal in an aggregate amount equal to the lesser of (i) the entire outstanding Obligations as of such date
and (ii) one hundred percent (100%) of the Net Cash Proceeds received by the Borrower from Icagen-T in connection with such
sale, to be applied pursuant to Section 3.03(d) below.

 

(c) Prepayment
Premium. Without limiting the foregoing, whenever the Prepayment Premium is in effect and payable pursuant to the terms hereof,
such premium shall be payable on all payments and prepayments of the Term Loan, whether as a result of clause (a) above in this
Section 3.03, acceleration or otherwise (but excluding any prepayment pursuant to clause (b) above).

 

(d) Application.
Proceeds of any prepayment made pursuant to clauses (a) or (b) above shall be applied in the following order of priority, with
proceeds being applied to a succeeding level of priority only if amounts owing pursuant to the immediately preceding level of priority
have been paid in full in cash:

 

(i) first,
to the payment of any unpaid costs or expenses referred to in Section 14.03 then due and owing;

 

(ii) second,
to the payment of any accrued and unpaid interest and any fees then due and owing;

 

(iii) third,
to the payment of unpaid principal of the Term Loan;

 

(iv) fourth,
to the payment of any Prepayment Premium then due and payable; and

 

(v) fifth, to
the Borrower or such other Persons as may lawfully be entitled to or directed by the Borrower to receive the remainder.

 

Section 3.04.
Closing Fee. On the Closing Date, the Borrower shall pay to the Administrative Agent out of the proceeds of the Term Loan
a non-refundable fee in the amount equal to two percent (2%) of the principal amount of the Term Loan advanced by the Lenders
on such date (the “Closing Fee”). Payment of the Closing Fee shall be in addition to such fees, costs and
expenses due and payable pursuant to Section 14.03. Upon receipt of payment from the Borrower, the Administrative Agent will
promptly thereafter distribute like funds relating to any such payment to the Lenders pro rata on the basis of each
Lender’s Proportionate Share.

 

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Section 4. Payments,
Etc.

 

Section 4.01. Payments.

 

(a) Payments
Generally. Each payment of principal, interest and other amounts to be made by the Obligors under this Agreement or any other
Loan Document shall be made (i) in Dollars, in immediately available funds, without deduction, set off or counterclaim, to the
deposit account of the Administrative Agent (for the benefit of the Lenders) designated by the Administrative Agent by notice to
the Borrower and (ii) not later than 2:00 p.m. (Eastern time) on the date on which such payment is due (each such payment made
after such time on such due date shall be deemed to have been made on the next succeeding Business Day).

 

(b) Application
of Payments. All such payments referenced in clause (a) above shall be applied as set forth in Section 3.03(d) above.

 

(c) Non-Business
Days. If the due date of any payment under this Agreement (whether in respect of principal, interest, fees, costs or otherwise)
would otherwise fall on a day that is not a Business Day, such date shall be extended to the next succeeding Business Day, and,
in the case of any payment accruing interest, interest thereon shall be payable for the period of such extension.

 

Section 4.02. Computations.
All computations of interest and fees hereunder shall be computed on the basis of a year of three hundred and sixty (360) days
and actual days elapsed during the period for which payable.

 

Section 4.03. Set-Off.

 

(a) Set-Off
Generally. Upon the occurrence and during the continuance of any Event of Default, the Administrative Agent, each of the Lenders
and each of their Affiliates is hereby authorized at any time and from time to time, to the fullest extent permitted by law, to
set off and apply any and all deposits (general or special, time or demand, provisional or final) at any time held and other indebtedness
at any time owing by any Lender and any of their Affiliates to or for the credit or the account of any Obligor against any and
all of the Obligations, whether or not such Person shall have made any demand and although such obligations may be unmatured. Any
Person exercising rights of set off hereunder agrees promptly to notify the Borrower after any such set-off and application, provided
that the failure to give such notice shall not affect the validity of such set-off and application. The rights of the Lenders
and each of their Affiliates under this Section 4.03 are in addition to other rights and remedies (including other rights of set-off)
that such Persons may have.

 

(b) Exercise
of Rights Not Required. Nothing contained in Section 4.03(a) shall require the Administrative Agent, any Lender or any of their
Affiliates to exercise any such right or shall affect the right of such Persons to exercise, and retain the benefits of exercising,
any such right with respect to any other indebtedness or obligation of any Obligor.

 

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Section 5. Yield
Protection, Etc.

 

Section 5.01. Additional Costs.

 

(a) Change
in Law Generally. If, on or after the date hereof, the adoption of any Law, or any change in any Law, or any change in the
interpretation or administration thereof by any court or other Governmental Authority charged with the interpretation or administration
thereof, or compliance by any Lender (or its lending office) with any request or directive (whether or not having the force of
law) of any such Governmental Authority, shall impose, modify or deem applicable any reserve (including any such requirement imposed
by the Board of Governors of the Federal Reserve System), special deposit, contribution, insurance assessment or similar requirement,
in each case that becomes effective after the date hereof, against assets of, deposits with or for the account of, or credit extended
by, a Lender (or its lending office) or shall impose on a Lender (or its lending office) any other condition affecting the Term
Loan or the Commitment, and the result of any of the foregoing is to increase the cost to such Lender of making or maintaining
the Term Loan, or to reduce the amount of any sum received or receivable by such Lender under this Agreement or any other Loan
Document, or subject any Lender to any Taxes on its Term Loan, Commitment or other obligations, or its deposits, reserves, other
liabilities or capital (if any) attributable thereto by an amount reasonably deemed by such Lender in good faith to be material
(other than (i) Indemnified Taxes, (ii) Taxes described in clauses (ii) through (iv) of the definition of “Excluded Taxes”
and (iii) Connection Income Taxes), then the Borrower shall pay to such Lender on demand such additional amount or amounts as will
compensate such Lender for such increased cost or reduction.

 

(b) Change
in Capital Requirements. If a Lender shall have determined that, on or after the date hereof, the adoption of any applicable
Law regarding capital adequacy, or any change therein, or any change in the interpretation or administration thereof by any Governmental
Authority charged with the interpretation or administration thereof, or any request or directive regarding capital adequacy (whether
or not having the force of law) of any such Governmental Authority, in each case that becomes effective after the date hereof,
has or would have the effect of reducing the rate of return on capital of a Lender (or its parent) as a consequence of a Lender’s
obligations hereunder or the Term Loan to a level below that which a Lender (or its parent) could have achieved but for such adoption,
change, request or directive by an amount reasonably deemed by it to be material, then the Borrower shall pay to such Lender on
demand such additional amount or amounts as will compensate such Lender (or its parent) for such reduction.

 

(c) Notification
by Lender. Each Lender will promptly notify the Borrower of any event of which it has knowledge, occurring after the date hereof,
which will entitle such Lender to compensation pursuant to this Section 5.01. Before giving any such notice pursuant to this Section
5.01(c) such Lender shall designate a different lending office if such designation (x) will, in the reasonable judgment of such
Lender, avoid the need for, or reduce the amount of, such compensation and (y) will not, in the reasonable judgment of such Lender,
be materially disadvantageous to such Lender. A certificate of such Lender claiming compensation under this Section 5.01, setting
forth in reasonable detail the additional amount or amounts to be paid to it hereunder, shall be conclusive and binding on the
Borrower in the absence of manifest error.

 

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(d) Notwithstanding
anything herein to the contrary, (x) the Dodd-Frank Wall Street Reform and Consumer Protection Act and all requests, rules, guidelines
or directives thereunder or issued in connection therewith and (y) all requests, rules, guidelines or directives promulgated by
the Bank for International Settlements, the Basel Committee on Banking Supervision (or any successor or similar authority) or the
United States or foreign regulatory authorities, in each case pursuant to Basel III, shall in each case be deemed to constitute
a change in Law for all purposes of this Section 5.01, regardless of the date enacted, adopted or issued.

 

Section 5.02. Illegality.
Notwithstanding any other provision of this Agreement, in the event that on or after the date hereof the adoption of or any change
in any applicable Law or in the interpretation or application thereof by any competent Governmental Authority shall make it unlawful
for a Lender or its lending office to make or maintain the Term Loan by such Lender (and, in the opinion of such Lender, the designation
of a different lending office would either not avoid such unlawfulness or would be disadvantageous to such Lender), then such Lender
shall promptly notify the Borrower thereof, following which (i) such Lender’s Commitment shall be suspended until such time
as such Lender may again make and maintain the Term Loan hereunder and (ii) if such Law shall so mandate, the Term Loan shall be
prepaid by the Borrower on or before such date as shall be mandated by such Law in an amount equal to the aggregate principal amount
of the Term Loan outstanding on the date of such prepayment plus any accrued but unpaid interest thereon.

 

Section 5.03. Taxes.
For purposes of this Section 5.03, the term “applicable Law” includes FATCA.

 

(a) Payments
Free of Taxes. Any and all payments by or on account of any Obligation shall be made without deduction or withholding for any
Taxes, except as required by any applicable Law. If any applicable Law (as determined in the good faith discretion of an applicable
Withholding Agent) requires the deduction or withholding of any Tax from any such payment by a Withholding Agent, then the applicable
Withholding Agent shall be entitled to make such deduction or withholding and shall timely pay the full amount deducted or withheld
to the relevant Governmental Authority in accordance with applicable Law and, if such Tax is an Indemnified Tax, then the sum payable
by such Obligor shall be increased as necessary so that after such deduction or withholding has been made (including such deductions
and withholdings applicable to additional sums payable under this Section 5.03) the applicable Recipient receives an amount equal
to the sum it would have received had no such deduction or withholding been made.

 

(b) Payment
of Other Taxes by the Borrower. The Borrower shall timely pay to the relevant Governmental Authority in accordance with applicable
Law, or at the option of the Administrative Agent, timely reimburse it for the payment of, Other Taxes.

 

(c) Evidence
of Payments. As soon as reasonably practicable after any payment of Taxes by the Borrower to a Governmental Authority pursuant
to this Section 5.03, the Borrower shall deliver to the Administrative Agent the original or a certified copy of a receipt issued
by such Governmental Authority evidencing such payment, a copy of the return reporting such payment or other evidence of such payment
reasonably satisfactory to the Administrative Agent.

 

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(d) Indemnification
by the Borrower. The Borrower shall reimburse and indemnify each Recipient, within ten (10) days after demand therefor, for
the full amount of any Indemnified Taxes (including Indemnified Taxes imposed or asserted on or attributable to amounts payable
under this Section 5.03) payable or paid by such Recipient or required to be withheld or deducted from a payment to such Recipient
and any reasonable expenses arising therefrom or with respect thereto, whether or not such Indemnified Taxes were correctly or
legally imposed or asserted by the relevant Governmental Authority. A certificate as to the amount of such payment or liability
delivered to the Borrower by a Lender (with a copy to the Administrative Agent), or by the Administrative Agent on its own behalf
or on behalf of a Lender, shall be conclusive absent manifest error.

 

(e) Indemnification
by the Lender. Each Lender shall severally indemnify the Administrative Agent, within 10 days after demand therefor, for (i)
any Indemnified Taxes attributable to such Lender (but only to the extent that the Borrower has not already indemnified the Administrative
Agent for such Indemnified Taxes and without limiting the obligation of the Borrower to do so), and (ii) any Taxes attributable
to such Lender, in each case, that are payable or paid by the Administrative Agent in connection with any Loan Document, and any
reasonable expenses arising therefrom or with respect thereto, whether or not such Taxes were correctly or legally imposed or asserted
by the relevant Governmental Authority. A certificate as to the amount of such payment or liability delivered to any Lender by
the Administrative Agent shall be conclusive absent manifest error. Each Lender hereby authorizes the Administrative Agent to set
off and apply any and all amounts at any time owing to such Lender under any Loan Document or otherwise payable by the Administrative
Agent to such Lender from any other source against any amount due to the Administrative Agent under this paragraph (e).

 

(f) Status
of Lenders. (i) Any Lender that is entitled to an exemption from or reduction of withholding Tax with respect to payments made
under any Loan Document shall deliver to the Borrower and the Administrative Agent, at the time or times prescribed by applicable
Law or reasonably requested by the Borrower or the Administrative Agent, such properly completed and executed documentation reasonably
requested by the Borrower or the Administrative Agent as will permit such payments to be made without withholding or at a reduced
rate of withholding. In addition, any Lender shall deliver such other documentation prescribed by Law or reasonably requested by
the Borrower or the Administrative Agent as will enable the Borrower or the Administrative Agent to determine whether or not such
Lender is subject to backup withholding or information reporting requirements. Notwithstanding anything to the contrary in the
preceding two sentences, the completion, execution and submission of such documentation (other than such documentation set forth
in Section 5.03(f)(ii)(A), (ii)(B), and (ii)(D)) shall not be required if in such Lender’s reasonable judgment such completion,
execution or submission would subject such Lender to any material unreimbursed cost or expense or would materially prejudice the
legal or commercial position of such Lender.

 

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(ii) Without
limiting the generality of the foregoing:

 

(A) any
Lender (or, if the Lender is a disregarded entity for U.S. federal income tax purposes, the Person treated as the owner of the
assets of such Lender for U.S. federal income Tax purposes) that is a U.S. Person shall deliver to the Borrower and the Administrative
Agent on or prior to the date on which such Lender becomes a Lender under this Agreement (and from time to time thereafter upon
the reasonable request of the Borrower or the Administrative Agent), executed copies of IRS Form W-9 (or successor form) certifying
that such Lender is exempt from U.S. federal backup withholding Tax;

 

(B) any
Foreign Lender shall, to the extent it is legally entitled to do so, deliver to the Borrower and the Administrative Agent (in such
number of copies as shall be requested by the recipient) on or prior to the date on which such Foreign Lender becomes a Lender
under this Agreement (and from time to time thereafter upon the reasonable request of the Borrower and the Administrative Agent),
whichever of the following is applicable:

 

(1) in
the case of a Foreign Lender claiming the benefits of an income tax treaty to which the United States is a party (x) with
respect to payments of interest under any Loan Document, executed copies of IRS Form W-8BEN or IRS Form W-8BEN-E as
applicable (or successor forms) establishing an exemption from, or reduction of, U.S. federal withholding Tax pursuant to the
“interest” article of such tax treaty and (y) with respect to any other applicable payments under any Loan
Document, IRS Form W-8BEN or IRS Form W-8BEN-E as applicable (or successor forms) establishing an exemption from, or
reduction of, U.S. federal withholding Tax pursuant to the “business profits” or “other income”
article of such tax treaty;

 

(2) executed
copies of IRS Form W-8ECI (or successor form);

 

(3) in
the case of a Foreign Lender claiming the benefits of the exemption for portfolio interest under Section 881(c) of the Code,
(x) a certificate substantially in the form of Exhibit D-1 to the effect that such Foreign Lender is not a “bank”
within the meaning of Section 881(c)(3)(A) of the Code, a “10 percent shareholder” of the applicable the Borrower
within the meaning of Section 881(c)(3)(B) of the Code, or a “controlled foreign corporation” described in
Section 881(c)(3)(C) of the Code (a “U.S. Tax Compliance Certificate”) and (y) executed copies of IRS Form
W-8BEN or IRS Form W-8BEN-E as applicable (or successor forms); or

 

(4) to
the extent a Foreign Lender is not the beneficial owner, executed copies of IRS Form W-8IMY (or successor form), accompanied by
IRS Form W-8ECI (or successor form), IRS Form W-8BEN (or successor form), IRS Form W-8BEN-E, a U.S. Tax Compliance Certificate,
substantially in the form of Exhibit D-2 or D-3, IRS Form W-9 (or successor form), and/or other certification documents from each
beneficial owner, as applicable; provided that if the Foreign Lender is a partnership and one (1) or more direct or indirect
partners of such Foreign Lender are claiming the portfolio interest exemption, such Foreign Lender may provide a U.S. Tax Compliance
Certificate substantially in the form of Exhibit D-4 on behalf of each such direct and indirect partner.

 

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(C) any
Foreign Lender shall, to the extent it is legally entitled to do so, deliver to the Borrower and the Administrative Agent (in such
number of copies as shall be requested by the recipient) on or prior to the date on which such Foreign Lender becomes a Lender
under this Agreement (and from time to time thereafter at the time or times prescribed by applicable Law or upon the reasonable
request of the Borrower or the Administrative Agent), executed copies of any other form prescribed by applicable Law as a basis
for claiming exemption from or a reduction in U.S. federal withholding Tax, duly completed, together with such supplementary documentation
as may be prescribed by applicable Law to permit the Borrower or the Administrative Agent to determine the withholding or deduction
required to be made; and

 

(D) if
a payment made to a Lender under any Loan Document would be subject to U.S. federal withholding Tax imposed by FATCA if such
Lender were to fail to comply with the applicable reporting requirements of FATCA (including those contained in Section
1471(b) or 1472(b) of the Code, as applicable), such Lender shall deliver to the Borrower and the Administrative Agent at the
time or times prescribed by Law and at such time or times as reasonably requested by the Borrower or the Administrative Agent
such documentation prescribed by applicable Law (including as prescribed by Section 1471(b)(3)(C)(i) of the Code) and such
additional documentation reasonably requested by the Borrower or the Administrative Agent as may be necessary for the
Borrower and the Administrative Agent to comply with their obligations under FATCA and to determine that such Lender has
complied with such Lender’s obligations under FATCA or to determine the amount to deduct and withhold from such
payment. Solely for purposes of this clause (D), “FATCA” shall include any amendments made to FATCA after the
date of this Agreement.

 

Each Lender agrees that if any form or
certification it previously delivered expires or becomes obsolete or inaccurate in any respect, it shall update such form or certification
or promptly notify the Borrower and the Administrative Agent in writing of its legal inability to do so.

 

(g) Treatment
of Certain Tax Benefits. If any party to this Agreement determines, in its sole discretion exercised in good faith, that it
has received a refund of any Taxes as to which it has been indemnified pursuant to this Section 5.03 (including by the payment
of additional amounts pursuant to this Section 5.03), it shall pay to the indemnifying party an amount equal to such refund (but
only to the extent of indemnity payments made under this Section 5.03 with respect to the Taxes giving rise to such refund), net
of all out-of-pocket expenses (including Taxes) of such indemnified party and without interest (other than any interest paid by
the relevant Governmental Authority with respect to such refund). Such indemnifying party, upon the request of such indemnified
party, shall repay to such indemnified party the amount paid over pursuant to this paragraph (plus any penalties, interest or other
charges imposed by the relevant Governmental Authority) in the event that such indemnified party is required to repay such refund
to such Governmental Authority. Notwithstanding anything to the contrary in this Section 5.03(g), in no event will the indemnified
party be required to pay any amount to an indemnifying party pursuant to this Section 5.03(g) the payment of which would place
the indemnified party in a less favorable net after-Tax position than the indemnified party would have been in if the Tax subject
to indemnification and giving rise to such refund had not been deducted, withheld or otherwise imposed and the indemnification
payments or additional amounts with respect to such Tax had never been paid. This Section 5.03(g) shall not be construed to require
any indemnified party to make available its Tax returns (or any other information relating to its Taxes that it deems confidential)
to the indemnifying party or any other Person.

 

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(h) Designation
of a Different Lending Office. If the Borrower is required to pay any Indemnified Taxes or additional amounts to any Lender
or to any Governmental Authority for the account of any Lender pursuant to Section 5.01 or this Section 5.03, then such Lender
shall (at the request of the Borrower) use commercially reasonable efforts to designate a different lending office for funding
or booking its Term Loan hereunder or to assign and delegate its rights and obligations hereunder to another of its offices, branches
or Affiliates if, in the sole reasonable judgment of such Lender, such designation or assignment and delegation would (i) eliminate
or reduce amounts payable pursuant to Section 5.01 or this Section 5.03, as the case may be, in the future, (ii) not subject such
Lender to any unreimbursed cost or expense and (iii) not otherwise be disadvantageous to such Lender. The Borrower hereby agrees
to pay all reasonable costs and expenses incurred by any Lender in connection with any such designation or assignment and delegation.

 

(i) Survival.
Each party’s obligations under this Section 5 shall survive the resignation or replacement of the Administrative Agent or
any assignment of rights by, or the replacement of, a Lender, the termination of the Commitments and the repayment, satisfaction
or discharge of all Obligations under any Loan Document.

 

Section 5.04. Delay in Requests.
Failure or delay on the part of any Lender to demand compensation pursuant to this Section 5 shall not constitute a waiver of such
Lender’s right to demand such compensation; provided that the Borrower shall not be required to compensate a Lender
pursuant to this Section for any increased costs incurred or reductions suffered more than six-months prior to the date that such
Lender notifies the Borrower of the change in Law giving rise to such increased costs or reductions, and of such Lender’s
intention to claim compensation therefor (except that, if the change in Law giving rise to such increased costs or reductions is
retroactive, then the sixth-month period referred to above shall be extended to include the period of retroactive effect thereof).

 

Section 6. Conditions Precedent.

 

Section 6.01. Conditions to the Closing
Date. The obligation of each Lender to make the Term Loan shall be subject to the execution and delivery of this Agreement
by the parties hereto and the prior or concurrent satisfaction (or waiver thereof by the Administrative Agent) of each of the conditions
precedent set forth below in this Section 6.01.

 

(a) Secretary’s
Certificate, Etc. The Administrative Agent shall have received from each Obligor (i) a copy of a good standing certificate,
dated a date reasonably close to the Closing Date, for each such Person and (ii) a certificate, dated as of the Closing Date, duly
executed and delivered by such Person’s Secretary or Assistant Secretary, managing member, general partner or equivalent,
as to:

 

(i) resolutions
of each such Person’s Board then in full force and effect authorizing the execution, delivery and performance of each Loan
Document to be executed by such Person and the Transactions;

 

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(ii) the
incumbency and signatures of those of its officers, managing member, general partner or equivalent authorized to act with respect
to each Loan Document to be executed by such Person; and

 

(iii) the
full force and validity of each Organic Document of such Person and copies thereof.

 

(b) Closing
Date Certificate. The Administrative Agent shall have received a certificate, dated as of the Closing Date and duly executed
and delivered by a Responsible Officer of the Borrower, which certificate shall be in the form attached hereto as Exhibit M, stating
that (i) both immediately before and after giving effect to the Borrowing of the Term Loan, (x) the representations and warranties
set forth in each Loan Document shall, in each case, be true and correct in all material respects (or, in the case of any such
representation or warranty already qualified by materiality, in all respects) and (y) no Default shall have then occurred and
be continuing, or would result from the making of the Term Loan being advanced on the Closing Date and (ii) all of the conditions
set forth in Section 6.01 have been satisfied or waived by the Administrative Agent.

  

(c) Solvency,
Etc. The Administrative Agent shall have received a solvency certificate duly executed and delivered by the chief financial
or accounting Responsible Officer of the Borrower, dated as of the Closing Date, in form and substance reasonably satisfactory
to the Administrative Agent.

 

(d) Financial
Information, Etc. The Administrative Agent shall have received: 

 

(i) audited
consolidated financial statements of the Borrower and its Subsidiaries for the fiscal year ended December 31, 2017; provided
that the Borrower’s filing of an Annual Report on Form 10-K with the SEC with respect thereto shall be deemed to satisfy
the requirements of this Section; and

 

(ii) unaudited
consolidated balance sheets of the Borrower and its Subsidiaries for each fiscal quarter ended after December 31, 2017, together
with the related consolidated statement of operations for such fiscal quarter; provided that the Borrower’s filing
of a Quarterly Report on Form 10-Q with the SEC with respect to each such quarter shall be deemed to satisfy the requirements of
this Section.

 

(e) Compliance
Certificate. The Administrative Agent shall have received an initial Compliance Certificate, prepared on a pro forma basis
as of the Closing Date demonstrating compliance with the covenants set forth in Section 10, duly executed (and with all schedules
thereto duly completed) and delivered by a Responsible Officer of the Borrower.

 

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(f) Opinions
of Counsel. The Administrative Agent shall have received one (1) or more opinions, dated the Closing Date and addressed to
the Administrative Agent and the Lenders, from Gracin & Marlow, LLP, independent legal counsel to the Borrower and the other
Obligors, and Parsons Behle & Latimer, Nevada legal counsel to the Borrower and the other Obligors, each in form and substance
reasonably acceptable to the Administrative Agent.

 

(g) Delivery
of Notes. Each Lender that has requested a Note shall have received a Note for its Term Loan, duly executed and delivered by
a Responsible Officer of the Borrower.

 

(h) Security
Documents. The Administrative Agent shall have received executed counterparts of each Security Document, dated as of Closing
Date, duly executed and delivered by each Obligor, together with:

 

(i) subject
to Section 8.17, delivery of all certificates (in the case of Equity Interests that are securities (as defined in the NY
UCC)) evidencing the issued and outstanding capital securities owned by each Obligor that are required to be pledged under
the Security Agreement, which certificates in each case shall be accompanied by undated instruments of transfer duly executed
in blank or, in the case of Equity Interests that are uncertificated securities (as defined in the NY UCC), confirmation and
evidence reasonably satisfactory to the Administrative Agent that the security interest required to be pledged therein under
the Security Agreement has been transferred to and perfected by the Administrative Agent in accordance with Articles 8 and 9
of the NY UCC and all laws otherwise applicable to the perfection of the pledge of such Equity Interests;

 

(ii)
financing statements naming each Obligor as a debtor and the Administrative Agent as the secured party (for the benefit of
all Secured Parties) or other similar instruments or documents, in each case suitable for filing, to be filed under the
Uniform Commercial Code (or equivalent law) of all jurisdictions as may be necessary to perfect the Liens of the
Administrative Agent, for the benefit of the Lenders, pursuant to the Security Agreement;

 

(iii) UCC-1
(or equivalent) Lien searches reasonably satisfactory in scope and substance to the Administrative Agent covering each Obligor
and its properties;

 

(iv) UCC-3
termination statements, or equivalent, as may be necessary to release all Liens and other rights of any Person in any collateral
described in the Security Agreement previously granted by any Person; and

 

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(v) all
Short-Form IP Security Agreements required to be provided under the Security Agreement, each dated as of the Closing Date, duly
executed and delivered by each Obligor that is required to do so under the Security Agreement.

 

(i) Material
Adverse Change. No Material Adverse Change shall have occurred since December 31, 2017.

 

(j) Fees
and Expenses, Etc. Each of the Administrative Agent and each Lender shall have received, for its own account, the fees, costs
and expenses due and payable to it on the Closing Date pursuant to Sections 3.04 and 14.03, including all reasonable closing
costs and fees and all unpaid reasonable expenses of the Administrative Agent and the Lenders incurred in connection with the Transactions
(including the Administrative Agent’s and the Lenders’ reasonable and documented legal fees and expenses).

 

(k) Collateral
Questionnaire. The Administrative Agent shall have received a fully completed Collateral Questionnaire, dated as of the
Closing Date, duly executed and delivered by a Responsible Officer of the Borrower.

  

(l) Warrant. The
Administrative Agent shall have received the executed Warrant, dated as of the Closing Date.

 

(m) Insurance.
The Administrative Agent shall have received certificates and endorsements of insurance evidencing the existence of all insurance
required to be maintained by the Obligors and their respective Subsidiaries pursuant to Section 8.05 and the designation of the
Administrative Agent as the Borrower’s loss payee or additional insured, as applicable.

 

(n) Pay-Off
Letters. The Administrative Agent shall have received executed Pay-Off Letters terminating and cancelling the Pay-Off Indebtedness
in full, in form and substance reasonably acceptable to it.

 

(o) Due
Diligence. The Administrative Agent and the Lenders shall have received and be satisfied with all due diligence (including
without limitation historical financial statements, projections, technical, operational, legal, intellectual property, commercial
market forecasts, clinical and regulatory assessments, supply chain, securities, labor, Tax, litigation, environmental, reimbursement
and regulatory authority matters) in their sole discretion.

 

(p)Icagen-T
Loan Documents. The Administrative Agent shall have received executed copies of all Icagen-T Loan Documents.

 

(q) Bridge
Notes. The Administrative Agent shall have received executed amendments to each Bridge Note existing on the Closing Date, in
form and substance satisfactory to the Administrative Agent in order to subordinate all obligations thereunder to the Obligations,
subject to permitted payments under Section 9.07.

 

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(r) Series
C Preferred Subordination Agreement. The Administrative Agent shall have received an executed copy of the Series C Preferred
Subordination Agreement.

 

Section
7. Representations and Warranties.

 

The Borrower and each other Obligor hereby
jointly and severally represents and warrants to the Administrative Agent and each Lender that:

 

Section 7.01. Power and
Authority. Each Obligor (i) is duly organized and validly existing under the laws of its jurisdiction of organization,
(ii) has all requisite corporate or other organizational power, and has all Governmental Approvals necessary to own its
assets and carry on its business as now being, or as proposed to be conducted, except to the extent that failure to have the
same would not reasonably be expected to have a Material Adverse Effect, (iii) is qualified to do business and is in good
standing in all jurisdictions in which the nature of the business conducted by it makes such qualification necessary and
where failure so to qualify (either individually or in the aggregate) would reasonably be expected to have a Material Adverse
Effect, and (iv) has full power, authority and legal right to enter into and perform its obligations under each of the Loan
Documents to which it is a party and, in the case of the Borrower, to borrow the Term Loan hereunder.

 

Section 7.02. Authorization; Enforceability.
The Transactions are within each Obligor’s corporate or other organizational powers and have been duly authorized by all
necessary corporate or other organizational action and, if required, by all necessary equity holder action on the part of such
Obligor. This Agreement has been duly executed and delivered by each Obligor and constitutes, and each of the other Loan Documents
to which it is a party when executed and delivered by such Obligor will constitute, a legal, valid and binding obligation of such
Obligor, enforceable against such Obligor in accordance with its terms, except as such enforceability may be limited by (i) bankruptcy,
insolvency, reorganization, moratorium or similar laws of general applicability affecting the enforcement of creditors’ rights
and (ii) the application of general principles of equity (regardless of whether such enforceability is considered in a proceeding
in equity or at law).

 

Section 7.03. Governmental and
Other Approvals; No Conflicts. None of the Transactions (i) requires any Governmental Approval of, registration or filing
with, or any other action by, any Governmental Authority or any other Person, except for (x) such as have been obtained or
made and are in full force and effect and (y) filings and recordings in respect of perfecting or recording the Liens created
pursuant to the Security Documents, (ii) will violate any applicable Law or any Organic Document of any Obligor or any of its
Subsidiaries or any order of any Governmental Authority, other than any such violations that, individually or in the
aggregate, would not reasonably be expected to have a Material Adverse Effect, (iii) will result in a default under (x) any
Material Agreement or (y) any Contract creating or evidencing any Material Indebtedness or

(iv) will
result in the creation or imposition of any Lien (other than Permitted Liens) on any asset of any Obligor.

 

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Section 7.04. Financial Statements;
Material Adverse Change.

 

(a) Financial Statements.
The Borrower has heretofore furnished to the Administrative Agent and the Lenders certain consolidated financial statements as
provided for in Section 6.01(d). Such financial statements, and all other financial statements delivered by the Borrower pursuant
hereto (whether prior to the Closing Date or otherwise), present fairly, in all material respects, the consolidated financial
position and results of operations and cash flows of the Borrower and its Subsidiaries as of such dates and for such periods in
accordance with GAAP, subject to year-end audit adjustments and the absence of footnotes in the case of the statements of the
type described in Section 8.01(a) and (b). Neither the Borrower nor any of its Subsidiaries has any material contingent liabilities
or unusual forward or long-term commitments not disclosed in the aforementioned financial statements.

 

(b) No
Material Adverse Change. Since December 31, 2017, there has been no Material Adverse Change.

 

Section 7.05. Properties.

 

(a) Property
Generally. Each Obligor has good title to, or valid leasehold interests in, all its real and tangible personal property material
to its business subject only to Permitted Liens and except as would not reasonably be expected to materially interfere with its
ability to conduct its business as currently conducted or to utilize such properties for their intended purposes.

 

(b) Intellectual
Property.

 

(i) Schedule
7.05(b) lists all United States and foreign registrations of and applications for Patents, Trademarks, Copyrights, Industrial Designs
and Technical Information that are Obligor Intellectual Property, including the applicable jurisdiction, registration or application
number and date, as applicable thereto, and a designation as to whether it is licensed or owned by Obligor.

 

(ii) Obligors
own or possess all legal and beneficial rights, title and interest in and to Obligor Intellectual Property designated on Schedule
7.05(b) as being owned by that Obligor and has the right to use the Obligor Intellectual Property licensed to that Obligor, in
each case with good and marketable title, free and clear of any Liens or Claims of any kind whatsoever other than Permitted Liens.

 

(iii) To
Obligors’ knowledge, Obligors’ current use of its Material Intellectual Property does not violate any license or infringe
any valid and enforceable Intellectual Property right of another.

 

(iv) Other
than with respect to the Material Agreements, or as permitted by Section 9.09, the Obligors have not transferred ownership of Material
Intellectual Property, in whole or in part, to any Person who is not an Obligor.

 

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(v) Other
than as set forth on Schedule 7.05(b) and to Obligors’ knowledge, Obligors have not received any written communications,
nor is there any pending or threatened action in writing, suit, proceeding or claim in writing by another, alleging that any of
the Obligors has violated, infringed, diluted or misappropriated or, by conducting its business as currently conducted or as proposed
to be conducted does or would violate, infringe, dilute or misappropriate any Intellectual Property of another, and to Obligors’
knowledge, there is no basis for such an allegation.

 

(vi) To
the Obligors’ knowledge, there is no pending or threatened action in writing, suit, proceeding or claim in writing by
another (a) challenging Obligors’ rights in or to any Intellectual Property owned by, or licensed to, Obligors, and
Obligors have no knowledge of any facts which could form a reasonable basis for any such action, suit, proceeding or claim;
or (b) challenging the validity, enforceability or scope of any Intellectual Property owned by, or licensed to, Obligors, and
Obligors have no knowledge of any facts which could form a reasonable basis for any such action, suit, proceeding or
claim.

  

(vii) Obligors
have taken reasonable precautions to protect the secrecy, confidentiality and value of the Obligor Intellectual Property, including
without limitation, by requiring that all relevant current and former employees, contractors and consultants of Obligors execute
written confidentiality agreements.

 

(viii) Obligors
have complied with the material terms of each Material Agreement pursuant to which Intellectual Property has been licensed to Obligors
(which material terms shall include, but not be limited to, pricing and duration of the agreement), and all such Material Agreements
are in full force and effect, and Obligors have no knowledge of any facts which could form a reasonable basis for any claims of
breach or default under such Material Agreements.

 

(ix) Other
than those permitted by Section 9.09, or as set forth on Schedule 7.05(b), (a) there are no outstanding options, licenses, agreements,
claims, encumbrances or shared ownership interests of any kind relating to the Intellectual Property owned by, or licensed to,
Obligors and (b) nor are Obligors bound by, or a party to, any options, licenses or agreements of any kind with respect to any
Intellectual Property of another other than standard rights of customers and contract research organizations.

 

(x) Obligors
have no knowledge of any prior art that would reasonably be expected to render any claim of any United States Patent within the
Material Intellectual Property invalid that has not been disclosed to the United States Patent and Trademark Office.

 

(xi) All
maintenance fees, annuities, and the like due or payable on the Patents have been timely paid or the failure to so pay was the
result of an intentional decision by the applicable Obligor, which would not reasonably be expected to result in a Material Adverse
Change.

 

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(xii) To
Obligors’ knowledge, there are no material defects in any of the Patents that constitute the Material Intellectual Property
and no such Patents have ever been finally adjudicated to be invalid, unpatentable or unenforceable for any reason in any administrative,
arbitration, judicial or other proceeding.

 

(xiii) Obligors
have not received any notice asserting that the Patents constituting Material Intellectual Property are invalid, unpatentable or
unenforceable and, to Obligors’ knowledge, neither they nor any current or prior owner of such Patents or their respective
agents or representatives, have engaged in any conduct, or omitted to perform any necessary act, the result of which would invalidate
or render unpatentable or unenforceable any such Patent.

 

(xiv) To
Obligors’ knowledge, other than as set forth in Schedule 7.05(b), Obligors are not obligated to make any payment by way
of royalties, fees or otherwise to any owner or licensee of, or other claimant to, any Obligor Intellectual Property, with
respect to the use thereof or in connection with the conduct of its business or otherwise.

  

(xv) To
Obligors’ knowledge, no employee of Obligors is or has been in violation of any term of any employment contract, patent disclosure
agreement, invention assignment agreement, non-competition agreement, non-solicitation agreement, nondisclosure agreement or any
restrictive covenant to or with a former employer where the basis of such violation relates to such employee’s employment
with Obligors.

 

(xvi) Each
employee and each consultant retained to generate intellectual property for any Obligor has waived all moral rights and assigned
to Obligors all intellectual property rights he or she owns that are related to Obligors’ business as now conducted and
as presently proposed to be conducted.

 

Section 7.06. No Actions or Proceedings.

 

(a) Litigation.
There is no litigation, investigation or proceeding pending or, to the Borrower’s knowledge, threatened in writing with respect
to any Obligor or any of its Subsidiaries by or before any Governmental Authority or arbitrator that (i) either individually or
in the aggregate would reasonably be expected to have a Material Adverse Effect, except as specified in Schedule 7.06(a), or (ii)
involves this Agreement, any other Loan Document or the Transactions.

 

(b) Environmental
Matters. The operations and property of such Obligor and each of its Subsidiaries comply with all applicable Environmental
Laws, except to the extent the failure to so comply (either individually or in the aggregate) would not reasonably be expected
to have a Material Adverse Effect. There have been no conditions, occurrences or release of Hazardous Materials which would reasonably
be expected to form the basis of any environmental liability claim under applicable Environmental Laws with respect to Borrower’s
and its Subsidiaries’ businesses, operations or properties.

 

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(c) Labor Matters.
There are no labor disputes against the Borrower or any Subsidiary or, to the Borrower’s knowledge, threatened in writing
against the Borrower or any Subsidiary, and no unfair labor practice complaint is pending against the Borrower or any Subsidiary
or, to the knowledge of the Borrower, threatened in writing against any of them before any Governmental Authority, in each case
which would reasonably be expected to result in a Material Adverse Effect. There is no material strike or work stoppage in existence
or threatened in writing against the Borrower or any Subsidiary. Except as set forth on Schedule 7.06(c), the Borrower is not
party to any collective bargaining agreements or contracts, no union representation exists at any facilities of the Borrower or
any of its Subsidiaries and, to the knowledge of the Borrower, no union organizing activities with respect to its business are
taking place.

 

Section 7.07. Compliance
with Laws and Agreements. Each of the Obligors is in compliance with all Laws, regulations and orders of any Governmental
Authority applicable to it or its property and all indentures, agreements and other instruments binding upon it or its property,
except where the failure to do so, individually or in the aggregate, would not reasonably be expected to result in a Material
Adverse Effect. To the extent applicable, Obligors and their Subsidiaries are in compliance with 21 CFR §§ 210-211 and
21 CFR §§ 600-610.

 

Section 7.08. Taxes. Each of the Obligors has timely filed or caused to be filed all income and other material tax returns and
reports required to have been filed and has paid or caused to be paid all material Taxes, fees, assessments and governmental charges
or levies required to have been paid by it, except Taxes, fees, assessments and governmental charges or levies that are being contested
in good faith by appropriate proceedings and for which such Obligor has set aside on its books adequate reserves with respect thereto
in accordance with GAAP.

 

Section 7.09. Full Disclosure. None
of the reports, financial statements, certificates or other information furnished by or on behalf of the Obligors to any Lender
in connection with the negotiation of this Agreement and the other Loan Documents or delivered hereunder or thereunder (as modified
or supplemented by other information so furnished) contains any misstatement of material fact or omits to state any material fact
necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided
that, with respect to projected financial information, the Borrower represents only that such information was prepared in good
faith based upon assumptions believed to be reasonable at the time (it being understood by the Administrative Agent and the Lenders
that such projected financial information is not to be viewed as fact, and that no assurances can be given that any particular
projections will be realized and that actual results during the period or periods covered by any such projections may differ from
the projected results and such differences may be material).

 

Section 7.10. Investment Company
and Margin Stock Regulation.

 

(a) Investment Company
Act. Neither the Borrower nor any of its Subsidiaries is an “investment company” as defined in, or subject to
regulation under, the Investment Company Act of 1940.

  

(b) Margin
Stock. Neither the Borrower nor any of its Subsidiaries is engaged principally, or as one of its important activities, in the
business of extending credit for the purpose, whether immediate, incidental or ultimate, of buying or carrying Margin Stock,
and no part of the proceeds of the Term Loan will be used to buy or carry any Margin Stock in violation of Regulation T, U or
X.

 

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Section 7.11. Solvency. The Borrower and
its Subsidiaries, on a consolidated basis, are and, immediately after giving effect to the Borrowing and the use of proceeds thereof,
will be Solvent.

 
 Section
7.12 Equity Holders; Subsidiaries; Equity Investments. (a) Set forth on Schedule 7.12(a) is a complete and correct list of
all holders of the Equity Interests of Borrower, setting forth the name of each such holder, the series or class of Equity Interest
of Borrower held by such holder and the fully diluted percentage ownership of Borrower held beneficially by such holder. Borrower
is not in material breach of any Material Agreement between the Borrower and any of the holders of Equity Interests of the Borrower,
and the Borrower has fulfilled all of its material obligations under any such Material Agreements. The Borrower has received all
consents of the holders of the Equity Interests of the Borrower necessary for the Transactions, including any such consent pursuant
to any right of first refusal, right of first offer, tag-along right, co-sale right or similar rights, and, as of the date hereof,
all of the holders of Equity Interests of the Borrower with any such rights have declined to exercise such rights in connection
with the Transactions. 

 

(b) Set
forth on Schedule 7.12(b) is a complete and correct list of all Subsidiaries of the Borrower. Each such Subsidiary is duly organized
and validly existing under the jurisdiction of its organization shown in said Schedule 7.12(b), and the percentage ownership by
the Borrower or other entity of each such Subsidiary is as shown in said Schedule 7.12(b).
  

(c) Set
forth on Schedule 7.12(c) is a complete and correct list of all other Equity Interests held by each Obligor in any Person that
is not a direct or indirect Subsidiary of the Borrower. Such Schedule 7.12(c) also sets forth in reasonable detail, the type of Equity
Interest held by each such Obligor in such Person and the fully-diluted percentage ownership held beneficially by such Obligor
in such Person.

 

Section 7.13. Indebtedness and Liens.
Set forth on Schedule 7.13(a) is a complete and correct list of all Indebtedness of the Borrower and each other Obligor outstanding
as of the date hereof that will remain outstanding immediately after the making of the Term Loan and the application of the proceeds
therefrom on the Closing Date. Set forth on Schedule 7.13(b) is a complete and correct list of all Indebtedness outstanding on
the date hereof that will be repaid and satisfied in full on the Closing Date with proceeds of the Term Loan made on such date.
Schedule 7.13(c) is a complete and correct list of all Liens granted by the Borrower and other Obligors with respect to their respective
property which are outstanding as of the Closing Date after giving effect to the Transactions (other than the Liens granted pursuant
to the Loan Documents).

 

Section 7.14.
Material Agreements. Set forth on Schedule 7.14 is a complete and correct list of the Material Agreements that will
remain outstanding as of the Closing Date after giving effect to the Transactions. No Obligor is in material default under
any Material Agreement and the Borrower has no knowledge of any material default by any counterparty to any such Material
Agreement or Contract. Except as otherwise disclosed on Schedule 7.14, all Material Agreements that include a grant of rights
under any Material Intellectual Property to an Obligor are in full force and effect without material modification from the
form in which the same were disclosed to the Administrative Agent.

 

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Section 7.15. Restrictive Agreements.
Except as set forth in Schedule 7.15, no Obligor is subject to any Restrictive Agreement as of the Closing Date after giving effect
to the Transactions, except those permitted under Section 9.11.

 

Section 7.16. Real Property. Except
as set forth in Schedule 7.16, no Obligor owns or leases (as tenant thereof) any real property.

 

Section 7.17. Pension Matters. Schedule
7.17 sets forth a complete and correct list of, and that separately identifies, (i) all Title IV Plans and (ii) all Multiemployer
Plans. Except for those that would not reasonably be expected to, in the aggregate, have a Material Adverse Effect or result under
ERISA or Code Section 430(k) in a Lien under on the assets or property of any Obligor or any of its Subsidiaries, no ERISA Event
has occurred in connection with which obligations and liabilities (contingent or otherwise) remain outstanding or is reasonably
expected to occur.

 

Section 7.18. Collateral; Security Interest.
Each Security Document is effective to create in favor of the Administrative Agent (for the benefit of the Secured Parties) a legal,
valid and enforceable security interest, as security for the Obligations, in the Collateral subject to such Security Document and
each such security interest is perfected on a first-priority basis (subject only to Permitted Priority Liens).

 

Section 7.19. Regulatory Approvals.
(a) Each Obligor and each of its Subsidiaries holds either directly or through licensees and agents, all Regulatory Approvals,
licenses, permits and similar governmental authorizations of a Governmental Authority necessary or required for each Obligor and
its Subsidiaries to conduct their operations and business substantially in the manner currently conducted.

 

(b) Set
forth on Schedule 7.19(b) is a complete and accurate list as of the date hereof of all Regulatory Approvals relating to the Obligors
and the conduct of their business. All such Regulatory Approvals are (i) legally and beneficially owned exclusively by the Obligors,
free and clear of all Liens other than Permitted Liens, (ii) validly registered and on file with the applicable Governmental Authority,
in material compliance with all registration, filing and maintenance requirements (including any fee requirements) thereof, and
(iii) in good standing, valid and enforceable with the applicable Governmental Authority in all material respects.

 

(c) (i)
All material regulatory filings required by any Regulatory Authority have been made, and all such filings are complete and correct
in all material respects and have complied in all material respects with all applicable laws and regulations and (ii) each Obligor
has disclosed to the Administrative Agent all such material regulatory filings and all material communications between representatives
of each Obligor and any Regulatory Authority.

 

(d) Each
Obligor and each of its agents are in compliance in all material respects with all applicable Laws (including all Regulatory Approvals)
of all applicable Governmental Authorities, including the FDA and all other Regulatory Authorities. Each Obligor has and maintains
in full force and effect all the necessary and requisite Regulatory Approvals. Each Obligor is in compliance in all material respects
with all applicable registration and listing requirements set forth in the FD&C Act or equivalent regulation of each other
Governmental Authority having jurisdiction over such Person. Each Obligor adheres in all material respects to all applicable regulations
of all Regulatory Authorities.

 

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(e) Except
as set forth on Schedule 7.19(e), no Obligor has received from any Regulatory Authority any notice of adverse findings, including
any FDA Form 483 inspectional observations, notices of violations, Warning Letters, criminal proceeding notices under Section 305
of the FD&C Act, or any other similar communication from any Regulatory Authority.

 

(f) Neither
any Obligor nor any officer, employee or agent thereof, has made an untrue statement of a material fact or fraudulent statements
to the FDA or any other Regulatory Authority, failed to disclose a material fact required to be disclosed to the FDA or any other
Regulatory Authority, or committed an act, made a statement, or failed to make a statement that, at the time such disclosure was
made (or was not made), would reasonably be expected to provide a basis for the FDA or any other Regulatory Authority to invoke
its policy respecting Fraud, Untrue Statements of Material Facts, Bribery and Illegal Gratuities, set forth in 56 Fed. Reg. 46191
(September 10, 1991) or any similar policy.

 

(g) The
clinical, preclinical, safety and other studies and tests conducted by or on behalf of or sponsored by each Obligor (if any) were
(and if still pending, are) being conducted materially in accordance with standard medical and scientific research procedures.
Each Obligor has operated within, and currently is in compliance in all material respects with, all applicable laws, and Regulatory
Approvals, as well as the rules and regulations of the FDA and each other Regulatory Authority.

 

(h) No
Obligor is in the business of Product Commercialization and Development Activities, as well as any clinical or preclinical trials
with respect thereto.

 

Section 7.20. Transactions with Affiliates.
Except as set forth on Schedule 7.20, no Obligor nor any of its Subsidiaries has entered into, renewed, extended or been a party
to, any transaction (including the purchase, sale, lease, transfer or exchange of property or assets of any kind or the rendering
of services of any kind) with any Affiliate during the three-year period prior to the Closing Date.

 

Section 7.21.
OFAC. Except as set forth on Schedule 7.21, no Obligor nor any of its Subsidiaries, nor, to the knowledge of the Borrower,
any of their respective directors, officers, or employees nor, to the knowledge of the Borrower, any agents or other Persons acting
on behalf of any of the foregoing (i) is currently the target of any Sanctions, (ii) is located, organized or residing in any
Designated Jurisdiction, (iii) is or has been engaged in any transaction with, or for the benefit of, any Person who is now or
was then the target of Sanctions or who is located, organized or residing in any Designated Jurisdiction or (iv) is or has ever
been in violation in any material respect of or subject to an investigation relating to Sanctions. No Term Loan, nor the proceeds
from the Term Loan, has been or will be used, directly or indirectly, to lend, contribute or provide to, or has been or will be
otherwise made available to fund, any activity or business in any Designated
Jurisdiction or to fund any activity or business of any Person, to the Borrower’s knowledge, located, organized or residing
in any Designated Jurisdiction or who is the subject of any Sanctions, or in any other manner that will result in any violation
in any material respect by the Borrower or any of its Subsidiaries of Sanctions.

 

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Section 7.22. Anti-Corruption. No
Obligor nor any of its Subsidiaries, nor, to the knowledge of the Borrower, any of their respective directors, officers or employees
nor, to the knowledge of the Borrower, any agents or other Persons acting on behalf of any of the foregoing, directly or indirectly,
has (i) violated or is in violation, in any material respect, of any applicable anti-corruption Law, or (ii) made, offered to make,
promised to make or authorized the payment or giving of, directly or indirectly, any Prohibited Payment. To the Borrower’s
knowledge, no Obligor has been subject to any investigation by any Governmental Authority with regard to any actual or alleged
Prohibited Payment.

 

Section 7.23. Deposit and Disbursement
Accounts. Schedule 7.23 contains a list of all banks and other financial institutions at which any Obligor or any of its Subsidiaries
maintains Deposit Accounts, Securities Accounts and Commodity Accounts, and Schedule 7.23 sets forth the name, address and telephone
number of each such bank or financial institution, the name in which such account is held, the type of such account and the complete
account number therefor.

 

Section 7.24. Royalty and Other Payments.
Except as set forth on Schedule 7.24, no Obligor, nor any of its Subsidiaries, is obligated to pay any royalty, milestone payment,
deferred payment or any other contingent payment.

 

Section 8. Affirmative Covenants.

 

Each Obligor covenants and agrees with
the Lenders that, until the Commitments have expired or been terminated and all Obligations (other than Warrant Obligations and
contingent obligations as to which no claims have been asserted) have been indefeasibly paid in full in cash provided,
however, that the covenants set forth in Sections 8.21 and 8.22 shall terminate upon payment in full of the unpaid
principal amount owed under the First Amendment Term Loan and all accrued and unpaid PIK Interest on the First Amendment Term Loan:

 

Section 8.01. Financial Statements and
Other Information. The Borrower will furnish to the Administrative Agent:

 

(a) as soon
as available and in any event within 30 days after the end of each month (including the last month of each fiscal quarter), a
consolidated balance sheet for the Borrower and its Subsidiaries as of the end of such month, and the related consolidated statements
of income and cash flows for such month and the portion of the fiscal year through the end of such month, all in reasonable detail
and setting forth in comparative form the figures for the corresponding period in the preceding fiscal year, together with a certificate
of a Responsible Officer of the Borrower stating that such financial statements fairly present in all material respects the financial
condition of the Borrower and its Subsidiaries as at such date and the results of operations of the Borrower and its Subsidiaries
for the period ended on such date and have been prepared in accordance with GAAP, subject to changes resulting from normal, year-end audit adjustments and except for the absence of notes;

 

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(b) as soon
as available and in any event within five (5) Business Days following the date on which the Borrower files or is required to file
a Quarterly Report on Form 10-Q with the SEC, a consolidated balance sheet for the Borrower and its Subsidiaries as of the end
of such quarter, and the related consolidated statements of income and cash flows for such quarter and the portion of the fiscal
year through the end of such quarter, all in reasonable detail and setting forth in comparative form the figures for the corresponding
period in the preceding fiscal year, together with a certificate of a Responsible Officer of the Borrower stating that such financial
statements fairly present in all material respects the financial condition of the Borrower and its Subsidiaries as at such date
and the results of operations of the Borrower and its Subsidiaries for the period ended on such date and have been prepared in
accordance with GAAP, subject to changes resulting from normal, year-end audit adjustments and except for the absence of notes;
provided that, so long as the Borrower is subject to the public reporting requirements of the Exchange Act, the Borrower’s
filing of a Quarterly Report on Form 10-Q with the SEC shall be deemed to satisfy the requirements of this Section 8.01(b) on
the date on which such report is first available via the SEC’s EDGAR system or a successor system related thereto;

 

(c) as soon
as available and in any event within five (5) Business Days following the date on which the Borrower files or is required to file
its Annual Report on Form 10-K with the SEC, a consolidated balance sheet for the Borrower and its Subsidiaries as of the end
of such fiscal year, and the related consolidated statements of income, shareholders’ equity and cash flows for such fiscal
year, all in reasonable detail and setting forth in comparative form the figures for the previous fiscal year, accompanied by
a report and opinion thereon of RBSM LLP or another firm of independent certified public accountants of recognized national standing
reasonably acceptable to the Administrative Agent, which report and opinion shall be prepared in accordance with GAAP and which
shall not be subject to any Impermissible Qualification; provided that, the financial statements for the fiscal years ending
2018 and 2019 may be subject to an Impermissible Qualification; provided further that, so long as the Borrower is subject
to the public reporting requirements of the Exchange Act, the Borrower’s filing of an Annual Report on Form 10-K with the
SEC shall be deemed to satisfy the requirements of this Section 8.01(c) on the date on which such report is first available via
the SEC’s EDGAR system or a successor system related thereto;

 

(d) together
with the financial statements required pursuant to Sections 8.01(a) (b) and (c), a compliance certificate signed by a Responsible
Officer of the Borrower as of the end of the applicable accounting period substantially in the form of Exhibit E (a “Compliance
Certificate”), including details of any issues raised by the Borrower’s auditors that would be reasonably likely
to result in a Material Adverse Effect and the creation or other acquisition of any Intellectual Property by any Obligor or any
of its Subsidiaries after the date hereof and during such prior fiscal quarter for which such Compliance Certificate is delivered,
which is registered or becomes registered or the subject of an application for registration with the U.S. Copyright Office or the U.S. Patent and Trademark Office, as applicable,
or with any other equivalent foreign Governmental Authority;

 

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(e) within
three (3) Business Days after the end of each fiscal month, a certificate signed by a Responsible Officer of the Borrower as of
the end of such fiscal month demonstrating compliance with Section 10.01 hereof;

 

(f) as
soon as available and in any event no later than forty-five (45) days following the end of any fiscal year of the Borrower, copies
of an annual budget (or equivalent) for the Borrower and its Subsidiaries, approved by the Borrower’s Board for the next
succeeding fiscal year, in form reasonably satisfactory to the Administrative Agent, accompanied by a certificate of the chief
financial officer of the Borrower certifying that (i) such budget was prepared by the Borrower in good faith, (ii) the Borrower
had at the time of preparation of the budget, and at all times thereafter (including on and as of the date of delivery to the
Administrative Agent of such budget) has continued to have, a reasonable basis for all of the assumptions contained in such budget
and (iii) such budget was prepared in accordance with, and based upon, such assumptions;

 

(g) promptly,
and in any event within five (5) Business Days after receipt thereof by any Obligor, copies of each notice or other correspondence
received from the SEC (or comparable agency in any applicable non-U.S. jurisdiction) concerning any investigation or possible
investigation or other inquiry by such agency regarding financial or other operational results of such Obligor (but in any case
excluding any routine comments and letters from the SEC relating to such Obligor’s filings with the SEC or information that
would violate confidentiality obligations to a Governmental Authority);

 

(h)
information regarding insurance maintained by the Borrower and its Subsidiaries as required under Section 8.05;

 

(i) within
five (5) days after delivery thereof, copies of all statements, reports and notices made available to Borrower’s Board or
holders of Borrower’s Equity Interests; provided that any such material may be redacted by the Borrower to (i) exclude
information relating to the Lenders (including the Borrower’s strategy regarding the Term Loan), (ii) prevent the disclosure
of trade secrets and (iii) protect and preserve attorney-client privilege;

 

(j) as
soon as possible and in any event within five (5) Business Days after the Borrower obtains knowledge of any Claim related to any
Obligor that that involves more than $500,000, written notice thereof from a Responsible Officer of the Borrower which notice
shall include any statement setting forth details of such Claim; and

 

(k)
such other information respecting the operations, properties, business or condition (financial or otherwise) of the Obligors
(including with respect to the Collateral) as the Administrative Agent may from time to time reasonably request; provided, notwithstanding
the foregoing, Borrower covenants and agrees that neither Borrower, nor any other Person acting on its behalf, will provide,
or be obligated to provide, any Lender or its representatives with any information that Borrower believes constitutes
material non-public information, unless prior thereto such Lender shall have confirmed to Borrower in writing that it
consents to receive such information. Borrower understands and confirms that each Lender shall be relying on the foregoing
covenant in effecting transactions in securities of Borrower.

 

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Section 8.02. Notices of Material Events.
Borrower will furnish to the Administrative Agent written (or, in the case of Section 8.02(n), written or telephonic) notice of
the following promptly (but in any event, except as otherwise set forth in 8.02(o), within five (5) Business Days) after a Responsible
Officer obtains knowledge of the existence thereof (or as otherwise provided below); provided that the Borrower’s disclosure
of such event in a press release and/or through a filing with the SEC in a Quarterly Report on Form 10-Q, an Annual Report on Form
10-K or a Current Report on Form 8-K shall be deemed to satisfy the requirements of this Section 8.02:

 

(a) the
occurrence of any Default or Event of Default;

 

(b) the
occurrence of any event with respect to any Obligor’s property or assets resulting in a Loss aggregating in excess of $250,000;

 

(c) (i)
any proposed Acquisition by any Obligor that would reasonably be expected to result in environmental liability under
Environmental Laws in excess of $250,000, (ii) any spillage, leakage, discharge, disposal, leaching, migration or release of
any Hazardous Material required to be reported to any Governmental Authority under applicable Environmental Laws that would
reasonably be expected to result in a liability in excess of $250,000 and (iii) all Claims, notices of violation, hearings,
investigations or proceedings pending or, to the Borrower’s knowledge, threatened in writing against or directly
affecting any Obligor or any of its Subsidiaries or with respect to the ownership, use, maintenance and operation of their
respective businesses, operations or properties, relating to Environmental Laws or Hazardous Material, in each case that
would reasonably be expected to result in a liability in excess of $250,000;

 

(d) the
assertion in writing by any Person against, or with respect to the activities of, any Obligor of any alleged violation of or
non-compliance with any Environmental Laws or any permits, licenses or authorizations required pursuant to any Environmental
Law which would reasonably be expected to result in liability to such Obligor in excess of $250,000;

  

(e) the
filing or commencement of any action, suit or proceeding by or before any arbitrator or Governmental Authority against or directly
affecting any Obligor or any of its Subsidiaries that, if adversely determined, would reasonably be expected to result in a Material
Adverse Effect;

 

(f) (i)
on or prior to any filing by any ERISA Affiliate of any notice of intent to terminate any Title IV Plan, a copy of such notice
and (ii) promptly, and in any event within ten (10) days, after any Responsible Officer of any ERISA Affiliate knows or has reason
to know that an ERISA Event has occurred, a notice (which may be made by telephone if promptly confirmed in writing) describing
such ERISA Event and any action that any ERISA Affiliate proposes to take with respect thereto, together with (if applicable) a
copy of any notice filed with the PBGC or the IRS pertaining thereto;

 

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(g) (i)
the termination of any Material Agreement other than on its scheduled termination date; (ii) the receipt by any Obligor of any
notice under any Material Agreement (and a copy thereof); (iii) the entering into of any new Material Agreement by an Obligor (and
a copy thereof); or (iv) any material amendment to a Material Agreement (and a copy thereof);

 

(h) the
reports and notices as required by the Security Documents;

 

(i) any
material change in accounting policies or financial reporting practices by the Obligors;

 

(j) any
labor controversy resulting in or threatening to result in any strike, work stoppage, boycott, shutdown or other material labor
disruption against or involving an Obligor or any of its Subsidiaries;

 

(k) any
licensing agreement or similar arrangement entered into by any Obligor or any of its Subsidiaries in connection with any material
infringement or alleged material infringement of the Intellectual Property of another Person;

 

(l) any
change to any Obligor’s or any of its Subsidiaries’ ownership or maintenance of Deposit Accounts, Securities Accounts
and Commodity Accounts (other than Excluded Accounts), by delivering to the Administrative Agent a supplement to the Schedules
to this Agreement and the Security Agreement, as applicable, setting forth a complete and correct list of all such accounts as
of the date of such change;

 

(m) (i)
any safety alerts, marketing suspensions, removals or similar actions conducted, to be undertaken, or issued by, any Obligor
or any of its Subsidiaries or (ii) any material safety alerts, marketing suspensions, removals or similar actions conducted,
to be undertaken, or issued by, any Obligor’s and any of its Subsidiaries’ agents, suppliers, licensors or
licensees, as the case may be, in each case of (i) and (ii) above, whether voluntary or at the request, demand or order of
any Regulatory Authority or otherwise;

  

(n) any
Claim by any Person that any Obligor or any of its Subsidiaries has infringed upon any Intellectual Property of such Person, in
each case to the extent such Claim would reasonably be expected to cause a Material Adverse Effect;

 

(o) with
respect to any “Grantor” under the Security Agreement, if such Grantor intends to (i) change its location (as defined
in Section 9-307 of the UCC), or (ii) change its name from the name shown as its current legal name on Schedule 1 to the Security
Agreement, the Borrower shall provide five (5) days’ prior written notice to the Administrative Agent (or such shorter period
as may be acceptable to Administrative Agent in its reasonable discretion);

 

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(p) the
occurrence or existence of any event, circumstance, act or omission that would cause any representation or warranty contained in
Sections 7.07, 7.18 or 7.19 to be incorrect in any material respect if such representation or warranty was to be made at the time
the Borrower learned of such event, circumstance, act or omission; provided that in the event notice is required hereunder
with respect to Section 7.19(h), Borrower hereby agrees that it will take all such actions that the Administrative Agent may reasonably
request to amend the Loan Document to reflect such change; and

 

(q) any
other development that results in, or would reasonably be expected to result in, a Material Adverse Effect.

 

Each notice delivered under this Section
8.02 shall be accompanied by a statement of a Responsible Officer of the Borrower setting forth in reasonable detail the event
or development requiring such notice and any action taken or proposed to be taken with respect thereto. Nothing in this Section
8.02 is intended to waive, consent to, or otherwise permit any action or omission that is otherwise prohibited by this Agreement
or any other Loan Document.

 

Section 8.03. Existence; Conduct of
Business. Such Obligor will, and will cause each of its Subsidiaries to, do or cause to be done all things necessary to preserve,
renew and keep in full force and effect its legal existence and all Governmental Approvals material to the conduct of its business;
provided that the foregoing shall not prohibit any transaction permitted under Section 9.03.

 

Section 8.04.
Payment of Obligations. Such Obligor will, and will cause each of its Subsidiaries to, pay and discharge its obligations,
including (i) all material Taxes, fees, assessments and governmental charges or levies imposed upon it or upon its properties
or assets prior to the date on which penalties attach thereto, and all material lawful Claims for labor, materials and
supplies which, if unpaid, would become a Lien (other than a Permitted Lien) upon any properties or assets of such Obligor
any of its Subsidiaries, except to the extent such Taxes, fees, assessments or governmental charges or levies are Permitted
Liens and (ii) all other lawful Claims which, if unpaid, would by Law become a Lien (other than a Permitted Lien) upon any
material properties or assets of such Obligor or any of its Subsidiaries, except to the extent any of the foregoing are being
contested in good faith by appropriate proceedings and are adequately reserved against in accordance with GAAP.

  

Section 8.05. Insurance. At its
own cost and expense, each Obligor will, and will cause each of its Subsidiaries, to obtain and maintain insurance of the kinds,
and in the amounts, set forth below, it being understood and agreed that the insurance held by the Obligors on the Closing Date
is deemed to fulfill this requirement on the date hereof:

 

(a) All
Risks of Physical Loss Insurance. Insurance against loss, destruction or damage to its properties and assets (including the
Collateral) as determined in its good faith business judgment to be customary for companies similar to the Borrower.

 

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(b) Commercial
General Liability Insurance. Commercial general liability insurance covering bodily injury, death, property damage, products
liability in such amounts as are generally required by institutional lenders for businesses and assets comparable to the business
and assets of the Borrower.

 

(c) Workers
Compensation Insurance. Workers’ compensation insurance with respect to any work performed on or about the property or
assets of the Borrower.

 

(d) General
Requirements. All of the insurance policies of the Obligors required pursuant to this Section 8.05 will (i) be issued by
financially sound and reputable insurers, and (ii) from and after the Closing Date
(or such later date as agreed to by the Administrative Agent in its reasonable discretion), (x) name the Administrative Agent
as a “loss payee,” “additional insured” or “mortgagee,” as applicable, and (y) provide
for thirty (30) days’ prior written notice (ten (10) days’ prior written notice from the Borrower for nonpayment
of premium) to the Administrative Agent before such policy is canceled or terminated. In the event the Obligors fail to
maintain the insurance required pursuant to this Section 8.05, then the Administrative Agent may obtain insurance necessary
to comply with this Section 8.05 with respect to such Obligors, in each case at the expense of the Borrower (payable on
demand). The amount of any such expenses shall accrue interest at the Default Rate if not paid on demand, and shall
constitute “Obligations.” All of the insurance policies required hereby will be evidenced by one or more
certificates of insurance, together with appropriate loss payee or additional insured clauses or endorsements in favor of the
Administrative Agent as required by this Section, delivered to the Administrative Agent at such times as the Administrative
Agent may reasonably request from time to time. Unless an Event of Default has occurred and is continuing, the Administrative
Agent agrees to turn over to the Borrower any proceeds from insurance received by the Administrative Agent within fifteen
(15) Business Days following its receipt of a notice by the Borrower of the Borrower’s intention to reinvest such
proceeds as set forth in Section 3.03(b).

 

Section 8.06.
Books and Records; Inspection Rights. Such Obligor will, and will cause each of its Subsidiaries to, keep proper books of
record and account in which full, true and correct entries are made of all dealings and transactions. Such Obligor will, and
will cause each of its Subsidiaries to, permit any representatives designated by the Administrative Agent, upon at least
three (3) Business Days’ prior written notice and during normal business hours, to visit and inspect its properties, to
examine and make extracts from its books and records (excluding records subject to attorney-client privilege, subject to
confidentiality agreements with third parties that preclude disclosure to the Administrative Agent (acting in such capacity)
or subject to confidentiality restrictions pursuant to Law (including HIPAA)), and to discuss its affairs, finances and
condition with its officers and independent accountants, all at such reasonable times (but not more often than twice per year
unless an Event of Default has occurred and is continuing) as the Administrative Agent may request. The Borrower shall pay
all reasonable and documented costs and expenses of all such inspections.

  

Section 8.07.
Compliance with Laws and Other Obligations. Such Obligor will, and will cause each of its Subsidiaries to, (i) comply in all
material respects with all applicable Laws (including Environmental Laws) and (ii) comply in all material respects with all terms
of outstanding Indebtedness and all Material Agreements, except where the failure to do so, individually or in the aggregate,
would not reasonably be expected to result in a Material Adverse Effect.

 

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Section 8.08. Maintenance of Properties,
Etc. Such Obligor shall, and shall cause each of its Subsidiaries to, maintain and preserve all of its real and tangible personal
property necessary in the conduct of its business in good working order and condition in accordance with the general practice of
other Persons of similar character and size, ordinary wear and tear and damage from casualty or condemnation excepted.

 

Section 8.09. Maintenance of
Regulatory Approvals and Material Intellectual Property. (a) Such Obligor
shall, and shall cause each of its Subsidiaries to, maintain, in full force and effect in all material respects, each
Regulatory Approval required to conduct their respective businesses as presently conducted; provided that such Obligor
or such Subsidiary shall not be required to preserve any such Regulatory Approval if such Obligor or such Subsidiary shall
determine in its reasonable good faith judgment that the preservation thereof is no longer necessary in the conduct of its
business.

 

(b) Such
Obligor shall, and shall cause each of its Subsidiaries to, use commercially reasonable efforts to (i) protect and preserve all
Material Intellectual Property necessary in the conduct of its business and (ii) enforce or defend the Material Intellectual Property
against infringement, misappropriation, violation or interference by any other Persons; provided that nothing in this Section
8.09(b) shall prohibit or prevent such Obligor or any Subsidiary from discontinuing the protection, preservation or maintenance
of, or failing to enforce and defend, any of its Intellectual Property if, in the reasonable good faith judgment of such Obligor
or such Subsidiary, such Intellectual Property is no longer necessary and material to the conduct of its business.

 

Section 8.10.
Action Under Environmental Laws. Such Obligor shall, and shall cause each of its Subsidiaries to, upon the Borrower
obtaining knowledge of the release of any Hazardous Materials or the existence of any environmental liability under
applicable Environmental Laws with respect to their respective businesses, operations or properties, take all actions, at
their cost and expense, as shall be necessary or advisable to investigate and clean up the condition of their respective
businesses, operations or properties, including all required removal, containment and remedial actions, and restore their
respective businesses, operations or properties to a condition in each case in compliance with applicable Environmental Laws,
except to the extent the failure to take such action would not reasonably be likely to result in a Material Adverse
Effect.

  

Section 8.11.
Use of Proceeds. The proceeds of the Term Loan will be used only as provided in Section 2.03. Without limiting the
foregoing, no part of the proceeds of the Term Loan will be used, whether directly or indirectly, for any purpose that entails
a violation of any of the Regulations of the Board of Governors of the Federal Reserve System, including Regulations T, U and
X.

 

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Section 8.12. Certain
Obligations Respecting Subsidiaries; Further Assurances.

 

(a) Subsidiary
Guarantors. Such Obligor will take such action, and will cause each of its Subsidiaries to take such action, from time to
time as shall be necessary to ensure that all Subsidiaries are “Subsidiary Guarantors” hereunder, provided,
that neither Icagen-T nor any of its Subsidiaries shall be required to become a “Subsidiary Guarantor” hereunder until
such time as it no longer prohibited from doing so under the Icagen-T MSA. Without limiting the generality of the foregoing, in
the event that Borrower or any of its Subsidiaries (other than any Subsidiary owned by Icagen-T, until such time as it is no longer
prohibited from doing so under the Icagen-T MSA) shall form or acquire any new Subsidiary, it and its Subsidiaries shall concurrently:

 

(i) cause
such new Subsidiary to become a “Subsidiary Guarantor” hereunder, and a “Grantor” under the Security Agreement,
pursuant to a Guarantee Assumption Agreement;

 

(ii) take
such action or cause such Subsidiary to take such action (including joining the Security Agreement, delivering such shares
of stock together with undated transfer powers executed in blank and entering into the applicable Short-Form IP Security Agreements)
as shall be necessary to create and perfect valid and enforceable first priority Liens (subject to Permitted Liens) on substantially
all of the personal property of such new Subsidiary (other than Excluded Accounts) as collateral security for the obligations
of such new Subsidiary hereunder;

 

(iii) cause
the parent of such Subsidiary to execute and deliver a pledge agreement in favor of the Administrative Agent for the benefit of
the Secured Parties in respect of all outstanding issued shares of such Subsidiary; and

 

(iv) deliver
such proof of corporate or other organizational action, incumbency of officers, opinions of counsel and other documents as is consistent
with those delivered by each Obligor pursuant to Section 6.01, or as the Administrative Agent shall have reasonably requested.

 

(b) Further
Assurances. Subject to the limitations set forth herein and in the other Loan Documents, such Obligor will, and will cause
each of its Subsidiaries (other than Icagen-T and its Subsidiaries, until such actions are no longer prohibited by the Icagen-T
MSA) to, take such action from time to time as shall reasonably be requested by the Administrative Agent to effectuate the purposes
and objectives of this Agreement.

 

Without limiting the generality of the
foregoing, each Obligor will, and will cause each Person that is required to be a Subsidiary Guarantor to, take such action from
time to time (including executing and delivering such assignments, security agreements, control agreements and other instruments)
as shall be reasonably requested by the Administrative Agent to create, in favor of the Lenders, perfected security interests
and Liens in substantially all of the personal property of such Obligor as collateral security for the Obligations; provided
that any such security interest or Lien shall be subject to the relevant requirements of the Security Documents.

 

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Section 8.13. Termination of Non-Permitted
Liens. In the event that the Borrower obtains knowledge of or receives notification from the Administrative Agent of the existence
of any outstanding Lien against any property of such Obligor or any of its Subsidiaries, which Lien is not a Permitted Lien, such
Obligor shall promptly terminate or cause the termination of such Lien.

 

Section 8.14. Intellectual Property.
In the event that any Obligor acquires Obligor Intellectual Property during the term of this Agreement, then the provisions of
this Agreement shall automatically apply thereto and any such Obligor Intellectual Property shall automatically constitute part
of the Collateral under the Security Documents, without further action by any party, in each case from and after the date of such
acquisition (except that any representations or warranties of any Obligor shall apply to any such Obligor Intellectual Property
only from and after the date, if any, subsequent to such acquisition that such representations and warranties are brought down).

 

Section 8.15. ERISA Compliance.
Such Obligor shall comply, and to the extent applicable, shall cause each of its Subsidiaries to comply, in all material respects
with the provisions of ERISA with respect to any Title IV Plans and Multiemployer Plans to which such Obligor or any such Subsidiary
is a party as employer.

 

Section 8.16. Cash Management.

 

(a) Subject
to Section 8.17, on and after the Closing Date (or such later date as agreed to by the Administrative Agent in its reasonable discretion),
each Obligor shall maintain all Deposit Accounts, Securities Accounts, Commodity Accounts and lockboxes (other than Excluded Accounts)
with a bank or financial institution that has executed and delivered to the Administrative Agent an account control agreement,
in form and substance reasonably acceptable to the Administrative Agent (each such Deposit Account, Securities Account, Commodity
Account and lockbox, a “Controlled Account”); and

 

(b) the
Obligors shall deposit promptly, and in any event no later than five (5) Business Days after the date of receipt thereof, all
cash, checks, drafts or other similar items of payment relating to or constituting payments made in respect of any and all
accounts and other rights and interests into a Deposit Account of an Obligor (which Deposit Account shall, on and after the
Closing Date (or such later date as agreed to by the Administrative Agent in its reasonable discretion), be a Controlled
Account).

 

Section
8.17. Post-Closing Obligations. Within the time periods specified on Schedule 8.17 (as
each may be extended by the Administrative Agent in its reasonable discretion), complete such undertakings as are set forth on
Schedule 8.17.

 

Section 8.18. Milestone. On or before
March 31, 2019, enter into a collaboration agreement with a pharmaceutical or biotechnology company that results in aggregate upfront
fees in excess of $5,000,000.

 

Section
8.19. Icagen-T Lien. Within thirty (30) days after the earlier of (i) the date the Icagen-T MSA no longer prohibits Icagen-T
and its Subsidiaries from being a Subsidiary Guarantor and (ii) the date the Icagen-T MSA is terminated, Borrower shall (x) deliver
all certificates representing 100% of Icagen-T’s Equity Interests to the Administrative Agent, accompanied by undated instruments
of transfer duly executed in blank, and (y) take all such actions required (including, without limitation, all such actions described
in Section 8.12) to cause Icagen-T and its Subsidiaries to become Subsidiary Guarantors and to pledge a first priority Lien on
all of their respective assets to the Administrative Agent for the benefit of the Lenders (subject to Permitted Priority Liens).

 

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Section
8.20. Board Observer Rights. Until the Obligations (other than the Warrant Obligations and contingent indemnification obligations
for which no claim has been made) have been paid in full in cash, Borrower shall permit the Administrative Agent on behalf of
all of the Lenders (the “Observer”) to attend and observe (but not vote) at all meetings of Borrower’s
(or any Subsidiary’s, as applicable) Board or any committee thereof (each a “Committee”), whether in
person, by telephone or otherwise as requested by the Observer. Borrower and such Subsidiaries shall notify the Observer in writing
at the same time as furnished to members of the applicable Board or Committee of (i) the date and time for each general or special
meeting of any such Board or Committee and (ii) the adoption of any resolutions or actions by any such Board or any such Committee
by written consent (describing, in reasonable detail, the nature and substance of such action). Borrower and each of its Subsidiaries
shall concurrently deliver to the Observer all notices and any materials delivered to the official members of such Board or Committee
in connection with a meeting or action to be taken by written consent, including a draft of any material resolutions or actions
proposed to be adopted by written consent. The Observer shall be free prior to such meeting or adoption by written consent to
contact members of any applicable Board or Committee and discuss the pending actions to be taken. Notwithstanding the foregoing,
the Observer shall not be entitled to receive materials relating to, or be in attendance for, any discussions relating to topics
which (x) are subject to attorney client privilege, or (y) present a conflict of interest for the Observer. All such discussions
and materials shall be subject to the confidentiality provisions set forth in Section 14.16.

 

Section 8.21.
Cash Flow. No later than Wednesday of each week (beginning September 4, 2019), the Obligors shall provide to the Administrative
Agent and the Lenders a 13-week cash flow forecast showing projected cash receipts and cash disbursements (including referencing
line item sources and uses of cash) of the Obligors over the immediately succeeding 13-week period.

 

Section 8.22.
Tucson Real Estate. The Borrower shall have caused Icagen-T (a) to apply the Net Cash Proceeds of the disposition and
sale of Icagen-T’s real property in Tucson, Arizona at which Icagen-T’s research and development site is located
(the “Tucson Real Estate”) to the prepayment in full of its outstanding Indebtedness under the Icagen-T
Credit Agreement and (b) to pay any Net Cash Proceeds from the sale of the Tucson Real Estate remaining after the payment in
full of its outstanding Indebtedness under the Icagen-T Credit Agreement (such remaining Net Cash Proceeds, the
“Tucson Real Estate Sale Proceeds”) to the Borrower, who shall apply such Tucson Real Estate Sale Proceeds
to the prepayment of the Term Loan hereunder in accordance with Section 3.03(b)(ii).

 

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Section
8.23. Series C Capital Raise. On or before November 30, 2019, the Series C Holders or other investors shall have made new
cash equity contributions to the Parent in an aggregate amount of not less than $2,500,000.

 

Section
8.24 Subordinated Note.On or before the First Amendment Date, the Parent shall have issued the initial Subordinated Notes,
under which the Parent shall have received $500,000.

 

Section 9. Negative Covenants.

 

Each Obligor covenants and agrees with
the Lenders that, until the Commitments have expired or been terminated and all Obligations (other than Warrant Obligations and
contingent obligations as to which no claims have been asserted) have been paid in full indefeasibly in cash:

 

Section 9.01. Indebtedness. Such
Obligor will not, and will not permit any of its Subsidiaries to, create, incur, assume or permit to exist any Indebtedness, whether
directly or indirectly, except:

 

(a) the
Obligations;

 

(b) Indebtedness
existing on the on the Closing Date and set forth on Schedule 7.13(a) and Permitted Refinancings thereof;

 

(c) accounts
payable to trade creditors for goods and services and current operating liabilities (not the result of the borrowing of money)
incurred in the ordinary course of such Obligor’s or such Subsidiary’s business in accordance with customary terms
and paid within ninety (90) days of becoming due, unless contested in good faith by appropriate proceedings and reserved for in
accordance with GAAP;

 

(d) Indebtedness
consisting of guarantees resulting from the endorsement of negotiable instruments for collection in the ordinary course of business;

 

(e) Indebtedness
of an Obligor and its Subsidiaries to the extent the same is permitted as an Investment pursuant to Section 9.05;

 

(f) Guarantees
by any Obligor of Indebtedness of any other Obligor;

 

(g) Purchase
money and capital lease financing; provided that (i) if secured, the collateral therefor consists solely of the assets being
financed, the products and proceeds thereof and books and records related thereto, and (ii) the aggregate outstanding principal
amount of such Indebtedness does not exceed $1,000,000 at any time;

 

(h) Indebtedness
under Hedging Agreements permitted by Section 9.05(f);

 

(i) Indebtedness
consisting of the financing of insurance premiums in respect of insurance policies insuring assets or businesses of an
Obligor and/or its Subsidiaries written or arranged in the ordinary course of business, in each case in an amount not to
exceed the amount of the applicable insurance premium in respect of any such policy plus interest and financing charges
applicable thereto;

 

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(j) Indebtedness
in respect of any agreement providing for treasury, depositary or cash management services, including in connection with any credit
cards, automated clearing house transfers of funds transaction, securities settlements, foreign exchange contracts or any similar
transfers, netting services, overdraft protections and other cash management and similar arrangements, in each case in the ordinary
course of business;

 

(k) advances
or deposits from customers or vendors received in the ordinary course of business;

 

(l) workers’
compensation claims, payment obligations in connection with health, disability or other types of social security benefits, unemployment
or other insurance obligations and reclamation and statutory obligations, in each case incurred in the ordinary course of business;

 

(m) Indebtedness
consisting of letters of credit, letters of guaranty and bankers’ acceptances to the extent incurred in the ordinary course
of business in an aggregate amount not to exceed $1,000,000;

 

(n)
Indebtedness which may be deemed to exist pursuant to any guaranties, indemnities, performance, surety, statutory, appeal or
similar obligations incurred in the ordinary course of business and Indebtedness constituting guaranties in the ordinary
course of business of the obligations of suppliers, customers, franchisees and licensees of the Borrower and its
Subsidiaries;

 

(o)
Indebtedness of the Obligors and their Subsidiaries incurred pursuant to the Icagen-T Loan Documents;

 

(p) Indebtedness
of one Obligor to another Obligor, provided that such Indebtedness shall be (A) evidenced by promissory notes and all such
notes shall be subject to a first priority Lien pursuant to the Security Agreement, (B) unsecured, and (C) subordinated in right
of payment to the payment in full of the Obligations (other than the Warrant Obligations) pursuant to the terms of the applicable
promissory notes or an intercompany subordination agreement, in each case in form and substance satisfactory to the Administrative
Agent in its sole discretion;

 

(q)
Indebtedness owed to Pfizer, Inc. pursuant to the terms of that certain Asset Purchase and Collaboration Agreement, dated as
of June 26, 2015, by and among Pfizer Research (NC), Inc. and Borrower, as amended by that certain Amendment to Asset
Purchase and Collaboration Agreement, dated as of July 15, 2016; and

 

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(r) (A)
the Bridge Notes, provided that on or prior to the Closing Date, the Bridge Notes have been amended in form and
substance satisfactory to the Administrative Agent to subordinate right of payment to the payment in full of the Obligations
(other than the Warrant Obligations), subject to permitted payments under Section 9.07, and (B) any Permitted Refinancings
thereof, provided that Borrower may elect to increase the interest rate on such Bridge Notes to 12% per annum, payable
in accordance with Section 9.07 hereof.

 

(s) Indebtedness
incurred under the Subordinated Notes.

 

Section 9.02. Liens. Such Obligor
will not, and will not permit any of its Subsidiaries to, create, incur, assume or permit to exist any Lien on any property now
owned or hereafter acquired by it or such Subsidiary, except:

 

(a) Liens
securing the Obligations;  

 

(b)
any Lien on any property or asset of such Obligor or any of its Subsidiaries existing on the Closing Date and set forth on Schedule
7.13(c); provided that (i) no such Lien shall extend to any other property or asset of such Obligor or any of its Subsidiaries
other than that which it secures on the date hereof and any cross-collateralization of other assets financed with the same holder
of such Lien, and (ii) any such Lien shall secure only those obligations which it secures on the Closing Date and extensions,
renewals and replacements thereof that do not increase the outstanding principal amount thereof, plus fees and expenses incurred
in connection therewith;

 

(c)
Liens securing Indebtedness permitted by Section 9.01(g); provided that (i) such Liens are limited solely to the assets,
products, proceeds and books and records permitted to be secured pursuant to Section 9.01(g), and (ii) the Indebtedness secured
thereby does not exceed the lower of the cost or fair market value of the assets being financed or acquired and Liens incurred
in connection with extension, renewal or refinancing of such Indebtedness;

 

(d)
Liens imposed by any applicable Law arising in the ordinary course of business, including (but not limited to) carriers’,
warehousemen’s, landlord’s and mechanics’ liens and other similar Liens arising in the ordinary course of business
and which (x) do not in the aggregate materially detract from the value of the property subject thereto or materially impair the
use thereof in the operations of the business of such Person or (y) are being contested in good faith by appropriate proceedings,
which proceedings have the effect of preventing the forfeiture or sale of the property subject to such Liens and for which adequate
reserves have been made if required in accordance with GAAP;

 

(e)
Liens, pledges or deposits made in the ordinary course of business in connection with leases, or bids, contracts, appeal bonds,
workers’ compensation, unemployment insurance or other similar social security legislation, and not in connection with money
borrowed;

 

(f)
Liens securing Taxes, assessments and other governmental charges, the payment of which (i) is not yet delinquent or (ii) is being
contested in good faith by appropriate proceedings promptly initiated and diligently conducted and for which adequate reserves
have been made if required in accordance with GAAP;

 

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(g)
servitudes, easements, rights of way, restrictions and other similar encumbrances on real property imposed by any applicable Law
and Liens consisting of zoning or building restrictions, easements, licenses, restrictions on the use of property or minor imperfections
in title thereto which, in the aggregate, are not material, and which do not in any case materially detract from the value of
the property subject thereto or interfere with the ordinary conduct of the business of any of the Obligors or any of their Subsidiaries;

 

(h)
with respect to any real property, (i) such defects or encroachments as might be revealed by an up-to-date survey of such real
property; (ii) the reservations, limitations, provisos and conditions expressed in the original grant, deed or patent of such
property by the original owner of such real property pursuant to Laws; (iii) rights of expropriation, access or user or any similar
right conferred or reserved by or in any Law, which, in the aggregate for clauses (i), (ii) and (iii), are not material, and which
do not in any case materially detract from the value of the property subject thereto or interfere with the ordinary conduct of
the business of any of the Obligors or their Subsidiaries; and (iv) leases or subleases in the ordinary course of business;

 

(i)
bankers’ liens, rights of setoff, netting and similar Liens incurred on deposits made in the ordinary course of business
or otherwise in connection with the services permitted by Section 9.01(j);

 

(j)
Liens in connection with any ordinary course interest or title of a licensor, sublicensor, lessor or sublessor not otherwise prohibited
by Section 9.13;

 

(k)
deposits made in connection with a contemplated Permitted Acquisition in an aggregate amount not to exceed ten percent (10%) of
the consideration of such Acquisition;

 

(l)
Liens incurred in connection with the Indebtedness permitted by Sections 9.01(m), and 9.01(n);

 

(m)
Liens on insurance policies and the proceeds thereof (excluding any benefits or any rights to receive payment under any insurance
policies) incurred in connection with the financing in the ordinary course of business of insurance premiums, provided,
that such Liens shall be limited only to the unused portion of the premiums payable under such insurance policies and the proceeds
of such insurance premiums;

 

(n)
(i) Restrictive Agreements permitted pursuant to Section 9.11, (ii) any customary provisions in contracts (including without limitation
leases and licenses of Intellectual Property) restricting the assignment thereof or, in the case of any lease or license, the
sublease or sublicense or other disposition of the applicable leased or licensed property, (iii) restrictions or conditions imposed
by any agreement governing secured Permitted Indebtedness permitted under Section 9.01(g), to the extent that such restrictions
or conditions apply only to the property or assets securing such Indebtedness and (iv) restrictions in agreements related to any
Asset Sale to the extent such Asset Sale would be a permitted Asset Sale under this Agreement;

 

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(o)
Liens of the Obligors and their Subsidiaries granted pursuant to the Icagen-T Loan Documents; and

 

(p)
Liens in favor of customs and revenue authorities arising as a matter of law to secure payments of custom duties in connection
with the importation of goods;

 

provided
that no Lien otherwise permitted under any of the foregoing clauses shall apply to any Material Intellectual Property except
for Liens described in clauses (a), (j) and (n).

 

Section
9.03. Fundamental Changes and Acquisitions. Such Obligor will not, and will not permit any of its Subsidiaries to, (i) enter
into any transaction of merger, amalgamation or consolidation, (ii) liquidate, wind up or dissolve itself (or suffer any liquidation
or dissolution), (iii) make or consummate any Acquisition of any Person, (iv) acquire or create any Foreign Subsidiary, or (v)
acquire any other assets or properties (other than assets or properties in the nature of inventory, software, equipment, supplies
and other assets acquired for use in the ordinary course of business, including in connection with the expansion or replacement
of equipment used in the Borrower’s and its Subsidiaries’ facilities), except:

 

(a)
transactions permitted by Section 9.01 and 9.05;

 

(b)
the merger, amalgamation, consolidation, liquidation, winding up or dissolution of any Subsidiary Guarantor with or into any Obligor;
provided that with respect to any such transaction involving the Borrower, the Borrower must be the surviving or successor
entity of such transaction;

 

(c)
the sale, lease, transfer or other disposition by any Subsidiary of any or all of its property (upon voluntary liquidation or
otherwise) to any Obligor;

 

(d)
the sale, transfer or other disposition of the Equity Interests of any Subsidiary Guarantor to the Borrower;

 

(e)
the creation of any Subsidiary subject to compliance with Section 8.12; and

 

(f)
Permitted Acquisitions.

 

Section
9.04. Lines of Business. Such Obligor will not, and will not permit any of its Subsidiaries to, engage in any business other
than the business engaged in on the date hereof by such Obligor or such Subsidiary or a business reasonably related, incidental
or complimentary thereto or a reasonable extension thereof or a business having a similar customer base.

 

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Section
9.05. Investments. Such Obligor will not, and will not permit any of its Subsidiaries to, make, directly or indirectly, or
permit to remain outstanding any Investments except:

 

(a)
Investments outstanding on the date hereof and identified in Schedule 9.05 and any modification, replacement, renewal or extension
thereof to the extent not involving new or additional Investments;

 

(b)
operating deposit accounts with banks and securities accounts with banks and other financial institutions that either qualify
as an Excluded Account or comply with Section 8.16;

 

(c)
extensions of credit in the nature of deposits, accounts receivable, trade debt granted or notes receivable arising from the purchase
or sale of goods or services in the ordinary course of business and prepaid royalties and other credit extensions and advances
arising in the ordinary course of business;

 

(d)
Permitted Cash Equivalent Investments to the extent held in a Controlled Account;

 

(e)
Investments by (i) any Obligor in any other Obligor, (ii) any Subsidiary that is not an Obligor in any other Subsidiary that is
not an Obligor, and (iii) by Borrower in Icagen-T;

 

(f)
Hedging Agreements entered into in by any Obligor or its Subsidiary in the ordinary course of business for the purpose of hedging
currency risks or interest rate risks (and not for speculative purposes) not to exceed $250,000 in the aggregate outstanding at
any time;

 

(g)
Investments consisting of prepaid expenses, negotiable instruments held for collection or deposit, security deposits with utilities,
landlords and other like Persons and deposits in connection with workers’ compensation and similar deposits, in each case
made in the ordinary course of business;

 

(h)
loans, advances and guarantees to or in favor of employees, officers, directors and consultants in the ordinary course of business
which in the aggregate shall not exceed $250,000 outstanding at any time;

 

(i)
Investments (i) in connection with a Permitted Acquisition and (ii) in connection with Casualty Events permitted by Section 3.03(b);

 

(j)
Investments received in connection with any Insolvency Proceedings in respect of any customers, suppliers or clients or in settlement
of delinquent obligations of, and other disputes with, customers, suppliers or clients;

 

(k)
Investments permitted by Sections 9.01, 9.02, 9.03, 9.06 and 9.09;

 

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(l)
Investments in newly created Subsidiaries to the extent such Subsidiary complies with Section 8.12 to the extent applicable; and

 

(m)
so long as no Default or Event of Default has occurred and is continuing at the time such Investments are made, other Investments
in an aggregate principal amount not to exceed $500,000 at any time outstanding.

 

Section
9.06. Restricted Payments. Such Obligor will not, and will not permit any of its Subsidiaries to, declare or make, or agree
to pay or make, directly or indirectly, any Restricted Payment; provided that the following Restricted Payments shall be
permitted so long as no Event of Default has occurred and is continuing or could reasonably be expected to occur or result from
such Restricted Payment:

 

(a)
distributions with respect to the Borrower’s Equity Interests payable solely in shares of its Qualified Equity Interests
(or the equivalent thereof);

 

(b) the
Borrower’s purchase, redemption, retirement, or other acquisition of shares of its Equity Interests with the proceeds received
from a substantially concurrent issue of new shares of its Qualified Equity Interests;

 

(c)
upon the death, incapacity or termination of any stockholder or the exercise of a right of first refusal or similar right in respect
of any stockholder, the Borrower may repurchase the stock of such stockholder or such stockholder’s family, trusts, estates
and heirs pursuant to stock plans or stock repurchase agreements in an amount not to exceed $250,000 per fiscal year;

 

(d)
cash in lieu of the issuance of fractional shares upon the conversion of convertible securities (or in connection with the exercise
of warrants or similar securities) not to exceed $100,000 in the aggregate;

 

(e)
any non-cash (other than cash in lieu of fractional shares) conversion or exercise requests in respect of any convertible securities,
options or warrants of the Borrower into Equity Interests of the Borrower pursuant to the terms of such convertible securities,
options or warrants or otherwise in exchange therefor;

 

(f)
distributions paid by any Subsidiary directly or indirectly to any Obligor;

 

(g)
cash payments made to redeem, purchase, repurchase or retire the Warrant Obligations in accordance with the terms of the Warrant;

 

(h)
payments of Indebtedness permitted pursuant to Section 9.07;

 

(i)
the non-cash accrual of dividends pursuant to the terms of the Series C Preferred Stock; and solely to the extent considered a
Restricted Payment, Investments permitted pursuant to Section 9.05 and transactions permitted pursuant to Section 9.03.

 

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Section
9.07. Payments of Indebtedness. Such Obligor will not, and will not permit any of its Subsidiaries to, make any payments in
respect of any Indebtedness for borrowed money other than (i) payments of the Obligations, (ii) payments of the “Obligations”
(as defined in the Icagen-T Credit Agreement), pursuant to the terms of the Icagen-T Credit Agreement, (iii) scheduled payments
of any other Permitted Indebtedness (other than the Bridge Notes), (iv) non-cash payments of interest under the Bridge Notes,
(v) Permitted Refinancings of Permitted Indebtedness, and (vi) cash payments of principal and interest on the Bridge Notes (including
any accrued interest thereon) so long as at the time of such payment and after giving effect thereto, no Default or Event of Default
shall have occurred and is continuing.

 

Section
9.08. Change in Fiscal Year. Such Obligor will not, and will not permit any of its Subsidiaries to, change the last day of
its fiscal year from that in effect on the date hereof, except to change the fiscal year of a Subsidiary acquired in connection
with a Permitted Acquisition to conform its fiscal year to that of the Borrower.

 

Section
9.09. Sales of Assets, Etc. Such Obligor will not, and will not permit any of its Subsidiaries to, sell, lease, transfer,
or otherwise dispose of any of its assets or property (including accounts receivable and capital stock of Subsidiaries), or forgive,
release or compromise any amount owed to such Obligor or Subsidiary, in each case, in any single transaction or series of transactions
(any thereof, an “Asset Sale”), except (so long as such proposed Asset Sale does not result in, or could not
reasonably be expected to result in, an Event of Default):

 

(a)
sales or leases of inventory in the ordinary course of its business on ordinary business terms;

 

(b)
the forgiveness, release, discounts or compromise of any amount owed to any Obligor or Subsidiary in the ordinary course of business;

 

(c)
Asset Sales that constitute licenses of Intellectual Property in the ordinary course of business that are not otherwise prohibited
by Section 9.13;

 

(d)
transfers of assets or property (other than any Material Intellectual Property) by any Subsidiary Guarantor to any Obligor;

 

(e)
dispositions of any assets or property (other than any Material Intellectual Property) that is obsolete or worn out or no longer
used or useful in the business;

 

(f)
dispositions resulting from Casualty Events;

 

(g)
in connection with any transaction permitted by Sections 9.02, 9.03, 9.05 and 9.06;

 

(h)
disposition of cash or Permitted Cash Equivalent Investments; and

 

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(i)
so long as no Default or Event of Default has occurred and is continuing at the time of such sale, other Asset Sales not to
exceed $250,000 in the aggregate per fiscal year.

 

Section
9.10. Transactions with Affiliates. Such Obligor will not, and will not permit any of its Subsidiaries to, sell, lease, license
or otherwise transfer any assets to, or purchase, lease, license or otherwise acquire any assets from, or otherwise engage in
any other transactions with, any of its Affiliates, except:

 

(a)
transactions between or among Borrower or any Subsidiary of Borrower and any other Subsidiary of Borrower;

 

(b)
any transaction permitted by Section 9.01, 9.03, 9.05, 9.06 or 9.09;

 

(c)
customary compensation and indemnification of, and other employment arrangements with, directors, officers and employees of such
Obligor or any of its Subsidiaries in the ordinary course of business;

 

(d)
other transactions having terms that are no less favorable (including the amount of cash or other consideration received or paid
by any Obligor) to any Obligor or any of its Subsidiaries, as the case may be, than those that would be obtained in a comparable
arm’s-length transaction with a Person not an Affiliate of such Person; and

 

(e)
the transactions set forth on Schedule 9.10.

 

Section
9.11. Restrictive Agreements. Such Obligor will not, and will not permit any of its Subsidiaries to, directly or indirectly,
enter into, incur or be a party to any Restrictive Agreement; provided that the foregoing shall not apply to (i) restrictions
and conditions imposed by Law or the Loan Documents and (ii) any Restrictive Agreement to which any Obligor or any of its Subsidiaries
is party on the date hereof and that is listed on Schedule 7.15.

 

Section
9.12. Modifications and Terminations of Material Agreements and Organic Documents. Such Obligor will not, and will not permit
any of its Subsidiaries to:

 

(a)
amend, modify or terminate any Organic Document that adversely affects the Lenders (solely in their capacity as Lenders and not
as shareholders) in any material respect without the prior written consent of the Administrative Agent which shall not be unreasonably
withheld, conditioned or delayed; or

 

(b)
take or omit to take any action that results in the termination of, or permits any other Person to terminate, any Material Agreement
or Material Intellectual Property that adversely affects the Lenders in any material respect, without the prior written consent
of the Administrative Agent which shall not be unreasonably withheld, conditioned or delayed.

 

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Section
9.13. Licensing of Intellectual Property. No Obligor shall enter into an exclusive license of its Material Intellectual Property
without the prior written consent of the Administrative Agent.

 

Section
9.14. Sales and Leasebacks. Except as disclosed on Schedule 9.14, such Obligor will not, and will not permit any of its Subsidiaries
to, become liable, directly or indirectly, with respect to any lease, whether an operating lease or a Capital Lease Obligation,
of any property (whether real, personal, or mixed), whether now owned or hereafter acquired, (i) which such Person has sold or
transferred or is to sell or transfer to any other Person and (ii) which such Obligor or Subsidiary intends to use for substantially
the same purposes as property which has been or is to be sold or transferred.

 

Section
9.15. Hazardous Material. Such Obligor will not, and will not permit any of its Subsidiaries to, use, generate, manufacture,
install, treat, release, store or dispose of any Hazardous Material, except in compliance with all applicable Environmental Laws
or where the failure to comply would not reasonably be expected to result in a Material Adverse Effect.

 

Section
9.16. Accounting Changes. Such Obligor will not, and will not permit any of its Subsidiaries to, make any significant change
in accounting treatment or reporting practices, except as required or permitted by GAAP.

 

Section
9.17. Compliance with ERISA. No ERISA Affiliate shall cause or suffer to exist (i) any ERISA Event that would reasonably be
expected to result in the imposition of a Lien under ERISA or Code Section 430(k) on the assets or property of any Obligor or
any of its Subsidiaries or (ii) any other ERISA Event that would reasonably be expected, individually or in the aggregate, to
have a Material Adverse Effect.

 

SECTION
10.FINANCIAL COVENANTS.

 

Section
10.01. Minimum Liquidity. Borrower and its Subsidiaries shall maintain a minimum aggregate balance of (x) from the Closing
Date until March 31, 2019, $1,000,000, and (y) at all times thereafter, $1,500,000, in each case in cash in one or more accounts
(which accounts shall, on and after the Closing Date (or such later date as agreed to by the Administrative Agent in its reasonable
discretion), be Controlled Accounts), free and clear of all Liens, other than Liens granted hereunder in favor of the Administrative
Agent and other Permitted Liens.

 

Section
10.02. Minimum Revenue. On each date set forth below (a “Calculation Date”) under the heading “Calculation
Date,” the Consolidated Net Revenue for the trailing twelve-month period ended on such Calculation Date shall not be less
than the amount set forth opposite such Calculation Date:

 

	Calculation Date	 	Net Revenue	 
	December 31, 2018	 	$	11,337,000	 
	March 31, 2019	 	$	11,430,000	 
	June 30, 2019	 	$	10,822,000	 

 

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	Calculation Date	 	Net Revenue	 
	September 30, 2019	 	$	10,777,000	 
	December 31, 2019	 	$	10,836,000	 
	March 31, 2020	 	$	11,256,000	 
	June 30, 2020	 	$	12,112,000	 
	September 30, 2020	 	$	12,604,000	 
	December 31, 2020	 	$	14,117,000	 
	March 31, 2021	 	$	14,258,000	 
	June 30, 2021	 	$	14,435,000	 
	September 30, 2021	 	$	14,590,000	 
	December 31, 2021	 	$	14,823,000	 
	March 31, 2022	 	$	14,971,000	 
	June 30, 2022	 	$	15,157,000	 

 

Section
11. Events of Default.

 

Section 11.01. Events of Default.
Each of the following events shall constitute an “Event of Default”:

 

(a) Principal
or Interest Payment Default. The Borrower shall fail to pay any principal of or interest on the Term Loan, when and as the
same shall become due and payable, whether at the due date thereof, at a date fixed for prepayment thereof or otherwise.

 

(b) Other
Payment Defaults. Any Obligor shall fail to pay any Obligation (other than an amount referred to in Section 11.01(a)) when
and as the same shall become due and payable, and such failure shall continue unremedied for a period of three (3) Business Days.

 

(c) Representations
and Warranties. Any representation or warranty made or deemed made by or on behalf of any Obligor in this Agreement or any
other Loan Document or any amendment or modification hereof or thereof, or in any report, certificate, financial statement or other
document furnished pursuant to or in connection with this Agreement or any other Loan Document or any amendment or modification
hereof or thereof, shall: (i) prove to have been incorrect when made or deemed made to the extent that such representation or warranty
contains any materiality or Material Adverse Effect qualifier; or (ii) prove to have been incorrect in any material respect when
made or deemed made to the extent that such representation or warranty does not otherwise contain any materiality or Material Adverse
Effect qualifier.

 

(d) Certain
Covenants. Any Obligor shall fail to observe or perform any covenant, condition or agreement contained in Sections 8.03 (with
respect to such Obligor’s existence), 8.11, 8.12, 8.14, 8.16, 8.21, 8.22, 8.23, 8.24,  Section 9 or Section 10.

 

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(e) Other
Covenants. Any Obligor shall fail to observe or perform any covenant or agreement contained in this Agreement (other than
those specified in Section 11.01(a), (b) or (d)) or any other Loan Document, and, in the case of any failure that is capable of
cure, such failure shall continue unremedied for a period of thirty (30) or more days.

 

(f) Payment
Default on Other Indebtedness. Any Obligor or any of its Subsidiaries shall fail to make any payment (whether of principal
or interest and regardless of amount) in respect of (i) any Material Indebtedness, or (ii) Indebtedness under the Icagen-T Credit
Agreement, in each case, when and as same shall become due and payable after giving effect to any applicable grace or cure period
as originally provided by the terms of such Indebtedness.

 

(g) Other
Defaults on Other Indebtedness. (i) Any material breach of, or “event of default” or similar event under, the Contract
governing any Material Indebtedness shall occur, or (ii) any event or condition occurs (x) that results in any Material Indebtedness
becoming due prior to its scheduled maturity or (y) that enables or permits (with or without the giving of notice, the lapse of
time or both) the holder or holders of such Material Indebtedness or any trustee or agent on its or their behalf to cause such
Material Indebtedness to become due, or to require the prepayment, repurchase, redemption or defeasance thereof, prior to its scheduled
maturity; provided that this Section 11.01(g) shall not apply to secured Indebtedness that becomes due as a result of the
voluntary sale or transfer of the property or assets securing such Material Indebtedness; provided further that if the holder
or holders of such Material Indebtedness or any trustee or agent on its or their behalf waives any such event or condition within
the time period set forth therein, then such event or condition shall not be an Event of Default hereunder.

 

(h) Other
Defaults under the Icagen-T Credit Agreement. Any “Event of Default” under the Icagen-T Credit Agreement shall
occur that is not cured or waived within the grace period set forth therein. 

 

(i) Insolvency,
Bankruptcy, Etc. (i) Any Obligor or any of its Subsidiaries generally does not pay its debts as the same become due or admits
in writing its inability to pay its debts generally; (ii) any Obligor or any of its Subsidiaries institutes any Insolvency Proceeding;
(iii) any Obligor or any of its Subsidiaries takes any corporate action to approve, effect, consent to or authorize any of the
actions described in Section 11.01(i)(ii); or (iv) any Insolvency Proceeding is filed against any Obligor or any of its Subsidiaries
and, such Insolvency Proceeding continues undismissed, or unstayed and in effect, for a period of sixty (60) days after the institution
thereof.

 

(j) Judgments.
One (1) or more judgments for the payment of money in an aggregate amount in excess of $1,000,000 (to the extent not covered by
independent third party insurance as to which the insurer has been notified of the potential claim and does not dispute coverage)
shall be rendered against any Obligor or any of its Subsidiaries or any combination thereof and the same shall remain undismissed,
unsatisfied or undischarged for a period of sixty (60) consecutive calendar days during which execution shall not be effectively
stayed, or any action shall be legally taken by a judgment creditor to attach or levy upon any assets of any Obligor to enforce
any such judgment.

 

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(k) ERISA
and Pension Plans. An ERISA Event shall have occurred that, in the reasonable determination of the Administrative Agent, when
taken together with all other ERISA Events that have occurred, would reasonably be expected to result in the imposition of a Lien
(other than a Permitted Lien) under ERISA or Code Section 430(k) on a material portion of the assets or property of any Obligor
or any of its Subsidiaries or have a Material Adverse Effect.

 

(l) Change
of Control, Etc. A Change of Control shall have occurred.

 

(m) Material
Adverse Change. A Material Adverse Change shall have occurred.

 

(n) Impairment
of Security, Etc. If any of the following events occurs: (i) Any Lien created by any of the Security Documents, shall at
any time not constitute a valid and perfected Lien on the applicable Collateral in favor of the Secured Parties, free and
clear of all other Liens (other than Permitted Liens or other Liens on Collateral not exceeding $100,000 in the aggregate) to
the extent required by the Loan Documents, except due to the action or inaction of the Administrative Agent, (ii) except for
expiration in accordance with its terms, any of the Security Documents or any Guarantee of any of the Obligations (including
that contained in Section 12) shall for whatever reason cease to be in full force and effect, or (iii) any Obligor shall,
directly or indirectly, contest in any manner such effectiveness, validity, binding nature or enforceability of any such Lien
or any Loan Document.

 

(o) Regulatory
Matters, Etc. (i) The FDA or any other Regulatory Authority initiates enforcement action against, or issues a warning letter
with respect to, any Obligor or any of its Subsidiaries, or the manufacturing facilities therefore, that causes such Person the
loss of more than ten percent (10%) of the Borrower’s revenue for the twelve(12) month period following such enforcement
action as compared to the same period ending on the same date in the prior period, or (ii) any Obligor enters into a settlement
agreement with the FDA or any other Regulatory Authority that results in aggregate liability as to any single or related series
of transactions, incidents or conditions, in excess of $500,000 to the extent not covered by insurance.

 

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Section 11.02. Remedies. Upon the
occurrence of any Event of Default (other than an Event of Default described in Section 11.01(i)), then, and in every such event,
and at any time thereafter during the continuance of such event, the Administrative Agent may, by notice to the Borrower, declare
the Term Loan then outstanding to be due and payable in whole (or in part, in which case any principal not so declared to be due
and payable may thereafter be declared to be due and payable), and thereupon the principal of the Term Loan so declared to be due
and payable, together with accrued interest thereon and all fees and other Obligations, shall become due and payable immediately
(in the case of the Term Loan, at the Prepayment Price therefor), without presentment, demand, protest or other notice of any kind,
all of which are hereby waived by each Obligor; and in case of an Event of Default described in Section 11.01(i), the principal
of the Term Loan then outstanding, together with accrued interest thereon and all fees and other Obligations, shall automatically
become due and payable immediately (in the case of the Term Loan, at the Prepayment Price therefor), without presentment, demand,
protest or other notice of any kind, all of which are hereby waived by each Obligor.

 

Section 11.03.
Additional Remedies. Upon the occurrence and during the continuance of any Event of Default, (a) if any Obligor or any of
its Subsidiaries shall be in default under a Material Agreement, the Lenders shall have the right (but not the obligation) to
cause the default or defaults under such Material Agreement to be remedied (including without limitation by paying any unpaid
amount thereunder) and otherwise exercise any and all rights of such Obligor or Subsidiary, as the case may be, thereunder, as
may be necessary to prevent or cure any default and (b) without limiting the foregoing, upon any such default, each Obligor shall
promptly execute, acknowledge and deliver to the Lenders such instruments as may reasonably be required of such Obligor to permit
the Lenders to cure any default under the applicable Material Agreement or permit the Lenders to take such other action required
to enable the Lenders to cure or remedy the matter in default and preserve the interests of the Lenders. Any amounts paid by the
Lenders pursuant to and in accordance with this Section 11.03 shall be payable on demand by the Obligors, shall accrue interest
at the Default Rate if not paid on demand and shall constitute “Obligations”.

 

Section 11.04.
Prepayment Premium and Prepayment Price. For the avoidance of doubt, the applicable Prepayment Premium (as a component of
the Prepayment Price) shall be due and payable at any time the Term Loan becomes due and payable in full prior to the Maturity
Date in accordance with the terms hereof, whether due to acceleration pursuant to the terms of this Agreement (in which case it
shall be due immediately, upon the giving of notice to the Borrower or automatically by operation of law or otherwise in accordance
with Section 11.02) (including, without limitation, on account of any bankruptcy filing). In view of the impracticability and
extreme difficulty of ascertaining the actual amount of damages to the Lenders or profits lost by the Lenders as a result of such
acceleration, and by mutual agreement of the parties as to a reasonable estimation and calculation of the lost profits or damages
of the Lenders, the Prepayment Premium shall be due and payable upon such date. Each Obligor hereby waives any defense to payment,
whether such defense may be based in public policy, ambiguity, or otherwise. The Obligors and the Lenders acknowledge and agree
that any Prepayment Premium due and payable in accordance with this Agreement shall not constitute unmatured interest, whether
under Section 5.02(b)(3) of the Bankruptcy Code or otherwise. Each Obligor further acknowledges and agrees, and waives any argument
to the contrary, that payment of such amount does not constitute a penalty or an otherwise unenforceable or invalid obligation.

 

Section 12. Guarantee.

 

Section
12.01. The Guarantee. The Subsidiary Guarantors hereby jointly and severally guarantee to the Administrative Agent and
the Lenders, and their successors and assigns, the prompt payment in full when due (whether at stated maturity, by
acceleration or otherwise) of the principal of and interest on the Term Loan, all fees and other amounts and Obligations from
time to time owing to the Administrative Agent and the Lenders by the Borrower and each other Obligor under this Agreement or
under any other Loan Document, in each case strictly in accordance with the terms hereof and thereof (such obligations being
herein collectively called the “Guaranteed Obligations”). The Subsidiary Guarantors hereby further jointly
and severally agree that if the Borrower or any other Obligor shall fail to pay in full when due (whether at stated maturity,
by acceleration or otherwise) any of the Guaranteed Obligations, the Subsidiary Guarantors will promptly pay the same,
without any demand or notice whatsoever, and that in the case of any extension of time of payment or renewal of any of the
Guaranteed Obligations, the same will be promptly paid in full when due (whether at extended maturity, by acceleration or
otherwise) in accordance with the terms of such extension or renewal.

 

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Section 12.02. Obligations
Unconditional. The obligations of the Subsidiary Guarantors under Section 12.01 are absolute and unconditional, joint and
several, irrespective of the value, genuineness, validity, regularity or enforceability of the obligations of the Borrower under
this Agreement or any other agreement or instrument referred to herein, or any substitution, release or exchange of any other
guarantee of or security for any of the Guaranteed Obligations, and, to the fullest extent permitted by Law, irrespective of any
other circumstance whatsoever that might otherwise constitute a legal or equitable discharge or defense of a surety or guarantor,
it being the intent of this Section 12.02 that the obligations of the Subsidiary Guarantors hereunder shall be absolute and unconditional,
joint and several, under any and all circumstances. Without limiting the generality of the foregoing, it is agreed that the occurrence
of any one or more of the following shall not alter or impair the liability of the Subsidiary Guarantors hereunder, which shall
remain absolute and unconditional as described above:

 

(a) at
any time or from time to time, without notice to the Subsidiary Guarantors, the time for any performance of or compliance with
any of the Guaranteed Obligations shall be extended, or such performance or compliance shall be waived;

 

(b) any
of the acts mentioned in any of the provisions of this Agreement or any other agreement or instrument referred to herein shall
be done or omitted;

 

(c) the
maturity of any of the Guaranteed Obligations shall be accelerated, or any of the Guaranteed Obligations shall be modified, supplemented
or amended in any respect, or any right under this Agreement or any other agreement or instrument referred to herein shall be waived
or any other guarantee of any of the Guaranteed Obligations or any security therefor shall be released or exchanged in whole or
in part or otherwise dealt with; or

 

(d) any
lien or security interest granted to, or in favor of, the Secured Parties as security for any of the Guaranteed Obligations shall
fail to be perfected.

 

The Subsidiary Guarantors
hereby expressly waive diligence, presentment, demand of payment, protest and all notices whatsoever, and any requirement that
the Administrative Agent or any Lender exhaust any right, power or remedy or proceed against the Borrower under this Agreement
or any other agreement or instrument referred to herein, or against any other Person under any other guarantee of, or security
for, any of the Guaranteed Obligations.

 

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Section
12.03. Reinstatement. The obligations of the Subsidiary Guarantors under this Section 12 shall be automatically reinstated
if and to the extent that for any reason any payment
by or on behalf of the Borrower in respect of the Guaranteed Obligations is rescinded or must be otherwise restored by any holder
of any of the Guaranteed Obligations, whether as a result of any proceedings in bankruptcy or reorganization or otherwise, and
the Subsidiary Guarantors jointly and severally agree that they will indemnify the Administrative Agent and the Lenders on demand
for all reasonable costs and expenses (including fees of counsel) incurred by such Persons in connection with such rescission
or restoration, including any such costs and expenses incurred in defending against any claim alleging that such payment constituted
a preference, fraudulent transfer or similar payment under any bankruptcy, insolvency or similar Law.

 

Section 12.04. Subrogation.
The Subsidiary Guarantors hereby jointly and severally agree that, until the payment and satisfaction in full of all
Guaranteed Obligations and the expiration and termination of the Commitments, they shall not exercise any right or remedy arising
by reason of any performance by them of their guarantee in Section 12.01, whether by subrogation or otherwise, against the Borrower
or any other guarantor of any of the Guaranteed Obligations or any security for any of the Guaranteed Obligations.

 

Section 12.05.
Remedies. The Subsidiary Guarantors jointly and severally agree that, as between the Subsidiary Guarantors, on one hand, and
the Administrative Agent and the Lenders, on the other hand, the obligations of the Borrower under this Agreement and under the
other Loan Documents may be declared to be forthwith due and payable as provided in Section 11 (and shall be deemed to have become
automatically due and payable in the circumstances provided in Section 11) for purposes of Section 12.01 notwithstanding any stay,
injunction or other prohibition preventing such declaration (or such obligations from becoming automatically due and payable)
as against the Borrower and that, in the event of such declaration (or such obligations being deemed to have become automatically
due and payable), such obligations (whether or not due and payable by the Borrower) shall forthwith become due and payable by
the Subsidiary Guarantors for purposes of Section 12.01.

 

Section 12.06.
Instrument for the Payment of Money. Each Subsidiary Guarantor hereby acknowledges that the guarantee in this Section 12 constitutes
an instrument for the payment of money, and consents and agrees that the Administrative Agent and the Lenders, at their sole option,
in the event of a dispute by such Subsidiary Guarantor in the payment of any moneys due hereunder, shall have the right to proceed
by motion for summary judgment in lieu of complaint pursuant to N.Y. Civ. Prac. L&R § 3213.

 

Section 12.07.
Continuing Guarantee. The guarantee in this Section 12 is a continuing guarantee, and shall apply to all Guaranteed Obligations
whenever arising.

 

Section 12.08.
Rights of Contribution. The Subsidiary Guarantors hereby agree, as between themselves, that if any Subsidiary Guarantor shall
become an Excess Funding Guarantor (as defined below) by reason of the payment by such Subsidiary Guarantor of any Guaranteed
Obligations, each other Subsidiary Guarantor shall, on demand of such Excess Funding Guarantor (but subject to the next sentence),
pay to such Excess Funding Guarantor an amount equal to such Subsidiary Guarantor’s Fair Share (as defined below and determined,
for this purpose, without reference to the properties, debts and liabilities of such Excess Funding Guarantor) of the Excess Payment
(as defined below) in respect of such Guaranteed Obligations. The payment obligation of a Subsidiary Guarantor to any Excess Funding
Guarantor under this Section 12.08 shall be subordinate and subject in right of payment to the prior payment in full of the obligations
of such Subsidiary Guarantor under the other provisions of this Section 12 and such Excess Funding Guarantor shall not exercise
any right or remedy with respect to such excess until payment and satisfaction in full of all of such obligations.

 

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For purposes of this
Section 12.08, (i) “Excess Funding Guarantor” means, in respect of any Guaranteed Obligations, a Subsidiary
Guarantor that has paid an amount in excess of its Fair Share of such Guaranteed Obligations, (ii) “Excess Payment”
means, in respect of any Guaranteed Obligations, the amount paid by an Excess Funding Guarantor in excess of its Fair Share
of such Guaranteed Obligations and (iii) “Fair Share” means, for any Subsidiary Guarantor, the ratio (expressed
as a percentage) of (x) the amount by which the aggregate present fair saleable value of all properties of such Subsidiary Guarantor
(excluding any shares of stock of any other Subsidiary Guarantor) exceeds the amount of all the debts and liabilities of such
Subsidiary Guarantor (including contingent, subordinated, unmatured and unliquidated liabilities, but excluding the obligations
of such Subsidiary Guarantor hereunder and any obligations of any other Subsidiary Guarantor that have been guaranteed by such
Subsidiary Guarantor) to (y) the amount by which the aggregate fair saleable value of all properties of all of the Subsidiary
Guarantors exceeds the amount of all the debts and liabilities (including contingent, subordinated, unmatured and unliquidated
liabilities, but excluding the obligations of the Borrower and the Subsidiary Guarantors hereunder and under the other Loan Documents)
of all of the Subsidiary Guarantors, determined (A) with respect to any Subsidiary Guarantor that is a party hereto on the Closing
Date, as of the Closing Date, and (B) with respect to any other Subsidiary Guarantor, as of the date such Subsidiary Guarantor
becomes a Subsidiary Guarantor hereunder.

  

Section 12.09. General Limitation
on Guarantee Obligations. In any action or proceeding involving any provincial, territorial or state corporate law, or any
state or federal bankruptcy, insolvency, reorganization or other law affecting the rights of creditors generally, if the obligations
of any Subsidiary Guarantor under Section 12.01 would otherwise, taking into account the provisions of Section 12.08, be held
or determined to be void, invalid or unenforceable, or subordinated to the claims of any other creditors, on account of the amount
of its liability under Section 12.01, then, notwithstanding any other provision hereof to the contrary, the amount of such liability
shall, without any further action by such Subsidiary Guarantor, the Administrative Agent, any Lender or any other Person, be automatically
limited and reduced to the highest amount that is valid and enforceable and not subordinated to the claims of other creditors
as determined in such action or proceeding.

 

Section
13. Administrative Agent.

 

Section 13.01. Appointment. Each
of the Lenders hereby irrevocably appoints Perceptive Credit Holdings II, LP, a Delaware limited partnership, to act on its behalf
as the Administrative Agent hereunder and under the other Loan Documents and authorizes the Administrative Agent to take such actions
on its behalf and to exercise such powers as are delegated to the Administrative Agent by the terms hereof or thereof, together
with such actions and powers as are reasonably incidental thereto. The provisions of this Section 13 are solely for the benefit
of the Administrative Agent and the Lenders, and neither the Borrower nor any other Obligor will have rights as a third-party beneficiary
of any of such provisions. It is understood and agreed that the use of the term “agent” herein or in any other Loan
Documents (or any other similar term) with reference to the Administrative Agent is not intended to connote any fiduciary or other
implied (or express) obligations arising under agency doctrine of any applicable Law. Instead, such term is used as a matter of
market custom, and is intended to create or reflect only an administrative relationship between contracting parties.

 

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Section 13.02. Rights as a Lender.
The Person serving as the Administrative Agent hereunder will have the same rights and powers in its capacity as a Lender as any
other Lender and may exercise the same as though it were not the Administrative Agent, and the term “Lender” or “Lenders”
will, unless otherwise expressly indicated or unless the context otherwise requires, include the Person serving as the Administrative
Agent hereunder in its individual capacity to the extent such Person is a Lender. Such Person and its Affiliates may accept deposits
from, lend money to, own securities of, act as the financial advisor or in any other advisory capacity for, and generally engage
in any kind of business with, the Borrower, the other Obligors or any other Subsidiaries or Affiliates of the Obligors as if such
Person were not the Administrative Agent hereunder and without any duty to account therefor to the Lenders.

 

Section 13.03.
Exculpatory Provisions. (a) The Administrative Agent will not have any duties or obligations except those expressly set forth
herein and in the other Loan Documents, and its duties hereunder are administrative in nature. Without limiting the generality
of the foregoing, the Administrative Agent:

 

(i) will
not be subject to any fiduciary or other implied duties, regardless of whether a Default has occurred and is continuing;

 

(ii) will
not have any duty to take any discretionary action or exercise any discretionary powers, except discretionary rights and powers
expressly contemplated hereby or by the other Loan Documents that the Administrative Agent is required to exercise as directed
in writing by the Majority Lenders (or such other number or percentage of the Lenders as will be expressly provided for herein
or in the other Loan Documents); provided that the Administrative Agent will not be required to take any action that, in
its opinion or the opinion of its counsel, may expose the Administrative Agent to liability or that is contrary to any Loan Document
or applicable Law, including any action that may be in violation of the automatic stay under any Insolvency Proceeding; and

 

(iii) will
not, except as expressly set forth herein and in the other Loan Documents, have any duty to disclose, and will not be liable for
the failure to disclose, any information relating to the Obligors or any of its Subsidiaries or Affiliates that is communicated
to or obtained by the Person serving as the Administrative Agent or any of its Affiliates in any capacity.

 

(b) The
Administrative Agent will not be liable for any action taken or not taken by it (i) with
the consent or at the request of the Majority Lenders (or such other number or percentage of the Lenders as will be
necessary, or as the Administrative Agent believes in good faith will be necessary, under the circumstances), or (ii) in the
absence of its own gross negligence or willful misconduct as determined by a court of competent jurisdiction by final and
nonappealable judgment. The Administrative Agent will be deemed not to have knowledge of any Default unless and until notice
describing such Default is given to the Administrative Agent in writing by the Borrower or a Lender.

 

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(c) The
Administrative Agent will not be responsible for or have any duty to ascertain or inquire into (i) any statement, warranty or representation
made in or in connection with this Agreement or any other Loan Document, (ii) the contents of any certificate, report or other
document delivered hereunder or thereunder or in connection herewith or therewith, (iii) the performance or observance of any of
the covenants, agreements or other terms or conditions set forth herein or therein or the occurrence of any Default, (iv) the validity,
enforceability, effectiveness or genuineness of this Agreement, any other Loan Document or any other agreement, instrument or document
or (v) the satisfaction of any condition set forth in Section 6 or elsewhere herein, other than to confirm receipt of items expressly
required to be delivered to the Administrative Agent.

 

Section 13.04. Reliance by
Administrative Agent. The Administrative Agent will be entitled to rely upon, and will not incur any liability for
relying upon, any notice, request, certificate, consent, statement, instrument, document or other writing (including any
electronic message, Internet or intranet website posting or other distribution) believed by it to be genuine and to have been
signed, sent or otherwise authenticated by the proper Person. The Administrative Agent also may rely upon any statement made
to it orally or by telephone and believed by it to have been made by the proper Person, and will not incur any liability for
relying thereon. In determining compliance with any condition hereunder to the making of the Term Loan that by its terms must
be fulfilled to the satisfaction of a Lender, the Administrative Agent may presume that such condition is satisfactory to
such Lender unless the Administrative Agent has received notice to the contrary from such Lender prior to the making of such
Term Loan. The Administrative Agent may consult with legal counsel (who may be counsel for the Borrower), independent
accountants and other experts selected by it, and will not be liable for any action taken or not taken by it in accordance
with the advice of any such counsel, accountants or experts.

 

Section 13.05. Delegation of Duties.
The Administrative Agent may perform any and all of its duties and exercise its rights and powers hereunder or under any other
Loan Document by or through any one or more sub-agents appointed by the Administrative Agent. The Administrative Agent and any
such sub-agent may perform any and all of its duties and exercise its rights and powers by or through their respective Affiliates.
The exculpatory provisions of this Section will apply to any such sub-agent and to the Affiliates of the Administrative Agent and
any such sub-agent, and will apply to their respective activities in connection with the syndication of the facility as well as
activities as Administrative Agent. The Administrative Agent will not be responsible for the negligence or misconduct of any sub-agents
except to the extent that a court of competent jurisdiction determines in a final and nonappealable judgment that the Administrative
Agent acted with gross negligence or willful misconduct in the selection of such sub-agents.

 

Section 13.06. Resignation of Agent.
(a) The Administrative Agent may at any time give notice of its resignation to the Lenders and the Borrower, which notice shall
set forth the effective date of such resignation (the “Resignation Effective Date”), such date not to be earlier
than the thirtieth (30th) day following the date of such notice. The Majority Lenders and the Borrower shall mutually agree upon
a successor to the Administrative Agent. If the Majority Lenders and the Borrower are unable to so mutually agree and no successor
shall have been appointed within twenty-five (25) days after the retiring Administrative Agent gives notice of its resignation,
then the retiring Administrative Agent may (but will not be obligated to), on behalf of the Lenders, appoint a successor Administrative
Agent it shall designate (in its reasonable discretion after consultation with the Borrower and the Majority Lenders). Whether
or not a successor has been appointed, such resignation will become effective in accordance with such notice on the Resignation
Effective Date.

 

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(b) With
effect from the Resignation Effective Date (i) the retiring Administrative Agent will be discharged from its duties and
obligations hereunder and under the other Loan Documents (except that in the case of any Collateral held by the
Administrative Agent on behalf of the Lenders under any of the Loan Documents, the retiring Administrative Agent will
continue to hold such Collateral until such time as a successor Administrative Agent is appointed) and (ii) except for any
indemnity payments owed to the retiring Administrative Agent, all payments, communications and determinations provided to be
made by, to or through the Administrative Agent will instead be made by or to each Lender directly, until such time, if any,
as the Majority Lenders appoint a successor Administrative Agent as provided for above. Upon the acceptance of a
successor’s appointment as Administrative Agent hereunder, such successor will succeed to and become vested with all of
the rights, powers, privileges and duties of the retiring Administrative Agent (other than any rights to indemnity payments
owed to the retiring Administrative Agent), and the retiring Administrative Agent will be discharged from all of its duties
and obligations hereunder or under the other Loan Documents. The fees payable by the Borrower to a successor Administrative
Agent will be the same as those payable to its predecessor unless otherwise agreed between the Borrower and such successor.
After the retiring Administrative Agent’s resignation hereunder and under the other Loan Documents, the provisions of
this Section 13 and Sections 14.03 and 14.04 will continue in effect for the benefit of such retiring Administrative Agent,
its sub-agents and their respective Affiliates in respect of any actions taken or omitted to be taken by any of them while
the retiring Administrative Agent was acting as Administrative Agent.

 

Section 13.07. Non-Reliance on Administrative
Agent and Other Lenders. Each Lender acknowledges that it has, independently and without reliance upon the Administrative Agent
or any other Lender or any of their Affiliates and based on such documents and information as it has deemed appropriate, made its
own credit analysis and decision to enter into this Agreement. Each Lender also acknowledges that it will, independently and without
reliance upon the Administrative Agent or any other Lender or any of their Affiliates and based on such documents and information
as it will from time to time deem appropriate, continue to make its own decisions in taking or not taking action under or based
upon this Agreement, any other Loan Document or any related agreement or any document furnished hereunder or thereunder.

 

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Section 13.08. Administrative Agent
May File Proofs of Claim. In case of the pendency of any Insolvency Proceeding or any other judicial proceeding relative to
the Borrower, the Administrative Agent (irrespective of whether the principal of the Term Loan will then be due and payable as
herein expressed or by declaration or otherwise and irrespective of whether the Administrative Agent has made any demand on the
Borrower) will be entitled and empowered (but not obligated), by intervention in such proceeding or otherwise:

 

(a) to
file and prove a claim for the whole amount of the principal and interest owing and unpaid in respect of the Term Loan and all
other Obligations that are owing and unpaid hereunder or under any other Loan Document and to file such other documents as may
be necessary or advisable in order to have the claims of the Lenders and the Administrative Agent (including any claim for the
reasonable compensation, expenses, disbursements and advances of the Lenders and the Administrative Agent and their respective
agents and counsel and all other amounts due the Lenders and the Administrative Agent under this Agreement or any other Loan Document)
allowed in such judicial proceeding; and

 

(b) to
collect and receive any monies or other property payable or deliverable on any such claims and to distribute the same.

 

Any custodian, receiver, assignee,
trustee, liquidator, sequestrator or other similar official in any such judicial proceeding is hereby authorized by each
Lender to make any payments of the type described above in this Section 13.08 to the Administrative Agent and, in the event
that the Administrative Agent consents to the making of such payments directly to the Lenders, to pay to the Administrative
Agent any amount due for the reasonable compensation, expenses, disbursements and advances of the Administrative Agent and
its agents and counsel, and any other amounts due the Administrative Agent under this Agreement or any other Loan
Document.

 

Section 13.09. Collateral and
Guaranty Matters; Appointment of Collateral Agent. (a) Without limiting the
provisions of Section 13.08, the Lenders irrevocably agree as follows:

 

(i) the
Administrative Agent is authorized, at its option and in its discretion, to release any Lien on any property granted to or held
by the Administrative Agent under any Loan Document (A) on the date when all Obligations have been satisfied in full in cash (other
than Warrant Obligations and contingent obligations as to which no claims have been asserted), (B) that is sold or otherwise disposed
of or to be sold or otherwise disposed of as part of or in connection with any sale or other disposition permitted under the Loan
Documents, or (C) subject to Sections 14.01 and 14.04, if approved, authorized or ratified in writing by the Majority Lenders;
and

 

(ii) the
Administrative Agent is authorized, at its option and discretion, to release any Subsidiary Guarantor from its obligations hereunder
if such Person ceases to be a Subsidiary as a result of a transaction permitted under the Loan Documents.

 

Upon request by the Administrative Agent
at any time, each Lender will confirm in writing the Administrative Agent’s authority to release or subordinate its interest
in particular types or items of Collateral, or to release any Subsidiary Guarantor from its obligations under its guaranty pursuant
to this Section 13.09.

 

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(b) The
Administrative Agent will not be responsible for or have a duty to ascertain or inquire into any representation or warranty regarding
the existence, value or collectability of the Collateral, the existence, priority or perfection of the Administrative Agent’s
Lien thereon, or any certificate prepared by any Obligor in connection therewith, nor will the Administrative Agent be responsible
or liable to the Lenders for any failure to monitor or maintain any portion of the Collateral.

 

(c) Each
Lender hereby appoints the Administrative Agent as its collateral agent under each of the Security Documents and agrees that,
in so acting, the Administrative Agent will have all of the rights, protections, exculpations, indemnities and other benefits
provided to the Administrative Agent under this Agreement, and hereby authorizes and directs the Administrative Agent, on
behalf of such Lender and all Lenders, without the necessity of any notice to or further consent from any of the Lenders,
from time to time to (i) take any action with respect to any Collateral or any Security Document which may be necessary to
perfect and maintain perfected the Liens on the Collateral granted pursuant to any such Security Document or protect and
preserve the Administrative Agent’s ability to enforce the Liens or realize upon the Collateral, (ii) act as collateral
agent for each Secured Party for purposes of acquiring, holding, enforcing and perfecting all Liens created by the Loan
Documents and all other purposes stated therein, (iii) enter into intercreditor or subordination agreements, as the case may
be, in connection with Indebtedness permitted pursuant to Section 9.01(n), (iv) enter into non-disturbance or similar
agreements in connection with licensing agreements and arrangements permitted by this Agreement and the other Loan Documents
and (v) otherwise to take or refrain from taking any and all action that the Administrative Agent shall deem necessary or
advisable in fulfilling its role as collateral agent under any of the Security Documents.

 

Section
14. Miscellaneous.

 

Section 14.01. No Waiver. No failure
on the part of the Administrative Agent or the Lenders to exercise and no delay in exercising, and no course of dealing with respect
to, any right, power or privilege under any Loan Document shall operate as a waiver thereof, nor shall any single or partial exercise
of any right, power or privilege under any Loan Document preclude any other or further exercise thereof or the exercise of any
other right, power or privilege. The remedies provided herein are cumulative and not exclusive of any remedies provided by law.

 

Section 14.02. Notices. All notices,
requests, instructions, directions and other communications provided for herein (including any modifications of, or waivers, requests
or consents under, this Agreement) shall be given or made in writing (including by telecopy or email) delivered, if to the Borrower,
another Obligor, the Administrative Agent or any Lender, to its address specified on the signature pages hereto or its Guarantee
Assumption Agreement, as the case may be, or at such other address as shall be designated by such party in a written notice to
the other parties. Except as otherwise provided in this Agreement, all such communications shall be deemed to have been duly given
upon receipt of a legible copy thereof, in each case given or addressed as aforesaid. All such communications provided for herein
by telecopy shall be confirmed in writing promptly after the delivery of such communication (it being understood that non-receipt
of written confirmation of such communication shall not invalidate such communication).

 

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Section 14.03. Expenses, Indemnification,
Etc.

 

(a) Closing
Expenses. The Borrower agrees to pay or reimburse the Administrative Agent and the Lenders for all of their reasonable and
documented out of pocket costs and expenses (including the reasonable and documented fees and expenses of Chapman and Cutler LLP,
special counsel to the Administrative Agent) in connection with the negotiation, preparation, execution and delivery of this Agreement
and the other Loan Documents and the making of the Term Loan.

 

(b) Other
Expenses. The Borrower agrees to pay or reimburse (i) the Administrative Agent and the Lenders for all of their reasonable
and documented out of pocket post-closing costs and expenses in connection the negotiation or preparation of any modification,
supplement or waiver of any of the terms of this Agreement or any of the other Loan Documents (whether or not consummated) and
(ii) the Administrative Agent and the Lenders for all of their out of pocket costs and expenses (including the fees and expenses
of legal counsel) in connection with any enforcement or collection proceedings resulting from the occurrence of an Event of Default.

 

(c) Indemnification. The
Borrower hereby indemnifies the Administrative Agent, the Lenders and their respective Affiliates, directors, officers,
employees, attorneys, agents, advisors and controlling parties (each, an “Indemnified Party”) from and
against, and agrees to hold them harmless against, any and all Claims and Losses of any kind (including reasonable and
documented fees and disbursements of counsel), joint or several, that may be incurred by or asserted or awarded against any
Indemnified Party, in each case arising out of or in connection with or relating to any investigation, litigation or
proceeding or the preparation of any defense with respect thereto arising out of or in connection with or relating to this
Agreement or any of the other Loan Documents or the Transactions or any use made or proposed to be made with the proceeds of
the Term Loan, whether or not such investigation, litigation or proceeding is brought by the Borrower, any of its
shareholders or creditors, an Indemnified Party or any other Person, or an Indemnified Party is otherwise a party thereto,
and whether or not any of the conditions precedent set forth in Section 6 are satisfied or the other transactions
contemplated by this Agreement are consummated, except to the extent such Claim or Loss is found in a final, non-appealable
judgment by a court of competent jurisdiction to have resulted from such Indemnified Party’s gross negligence or
willful misconduct. No Obligor shall assert any claim against any Indemnified Party, on any theory of liability, for
consequential, indirect, special or punitive damages arising out of or otherwise relating to this Agreement or any of the
other Loan Documents or any of the Transactions or the actual or proposed use of the proceeds of the Term Loan. No Lender
shall assert any claim against the Borrower or any of its Subsidiaries or any of their respective directors, officers,
employees, attorneys, agents, advisors or controlling parties on any theory of liability, for consequential, indirect,
special or punitive damages arising out of or otherwise relating to this Agreement or any of the other Loan Documents or any
of the transactions contemplated hereby or thereby or the actual or proposed use of the proceeds of the Term Loan. This
Section 14.03(c) shall not apply with respect to Taxes other than any Taxes that represent Claims and Losses arising from any
non-Tax claim.

 

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Section 14.04. Amendments, Etc. Except
as otherwise expressly provided in this Agreement, any provision of this Agreement and any other Loan Document may be modified
or supplemented only by an instrument in writing signed by the Borrower, the Administrative Agent and the Majority Lenders; provided
that:

 

(a) any
such modification or supplement that is disproportionately adverse to any Lender as compared to other Lenders or subjects any Lender
to any additional obligation shall not be effective without the consent of such affected Lender;

 

(b) the
consent of all of the Lenders shall be required to:

 

(i) amend,
modify, discharge, terminate or waive any of the terms of this Agreement or any other Loan Document if such amendment, modification,
discharge, termination or waiver would increase the amount of the Term Loan, reduce the fees payable hereunder, reduce interest
rates or other amounts payable with respect to the Term Loan, extend any date fixed for payment of principal, interest or other
amounts payable relating to the Term Loan or extend the repayment dates of the Term Loan;

 

(ii) amend,
modify, discharge, terminate or waive any Security Document if the effect is to release a material part of the Collateral
subject thereto other than pursuant to the terms hereof or thereof; or

 

(iii) amend
this Section 14.04.

 

Section 14.05. Successors and Assigns.

 

(a) General. This
Agreement shall be binding upon and shall inure to the benefit of the parties hereto and their respective successors and
assigns permitted hereby; provided that the neither the Borrower nor any other Obligor may assign or transfer its
rights or obligations hereunder without the prior written consent of the Administrative Agent. No Lender may assign or
otherwise transfer any of its rights or obligations hereunder or under any of the other Loan Documents except (i) to an
assignee in accordance with the provisions of Section 14.05(b), or (ii) by way of
participation in accordance with the provisions of Section 14.05(e) (and any other attempted assignment or transfer by any
party hereto shall be null and void). Nothing in this Agreement, expressed or implied, shall be construed to confer upon any
Person (other than the parties hereto, their respective successors and assigns permitted hereby, Participants to the extent
provided in Section 14.05(e) and, to the extent expressly contemplated hereby, the Indemnified Parties) any legal or
equitable right, remedy or claim under or by reason of this Agreement.

 

(b) Assignments
by Lender. Any of the Lenders may at any time assign to one or more Eligible Transferees (or, if an Event of Default has occurred
and is continuing, to any Person) all or a portion of its rights and obligations under this Agreement (including all or a portion
of the Commitment and the Term Loan at the time owing to it) and the other Loan Documents; provided that no such assignment
shall be made to the Borrower, any Affiliate of the Borrower or any employees or directors of any Obligor at any time. Subject
to the recording thereof by the Administrative Agent pursuant to Section 14.05(d), from and after the effective date specified
in each Assignment and Assumption, the assignee thereunder shall be a party to this Agreement and, to the extent of the interest
assigned by such Assignment and Assumption, have the rights and obligations of such Lender under this Agreement and the other Loan
Documents, and correspondingly the assigning Lender shall, to the extent of the interest assigned by such Assignment and Assumption,
be released from its obligations under this Agreement (and, in the case of an Assignment and Assumption covering all of the Lender’s
rights and obligations under this Agreement, such Lender shall cease to be a party hereto) and the other Loan Documents but shall
continue to be entitled to the benefits of Section 5 and Section 14.03. Any assignment or transfer by a Lender of rights or obligations
under this Agreement that does not comply with this Section 14.05(b) shall be treated for purposes of this Agreement as a sale
by such Lender of a participation in such rights and obligations in accordance with Section 14.05(e).

 

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(c) Amendments
to Loan Documents. Each of the Lenders and the Obligors agrees to enter into such amendments to the Loan Documents, and such
additional Security Documents and other instruments and agreements, in each case in form and substance reasonably acceptable to
the Lenders and the Obligors, as shall reasonably be necessary to implement and give effect to any assignment made under this Section
14.05.

 

(d) Register. The
Administrative Agent shall maintain a copy of each Assignment and Assumption delivered to it pursuant to clause (b) above and
a register for the recordation of the names and addresses of the Lenders, and the Commitments of, and principal amounts (and
stated interest) of the Term Loan owing to, each Lender pursuant to the terms hereof from time to time (the “Register”).
The entries in the Register shall be conclusive absent manifest error, and the Borrower, the Administrative Agent and the
Lenders shall treat each Person whose name is recorded in the Register pursuant to the terms hereof as a Lender hereunder for
all purposes of this Agreement. The Register shall be available for inspection by the Borrower and any Lender, at any
reasonable time and from time to time upon reasonable prior notice. The Obligations under the Loan Documents (other than the
Warrant Obligations) are intended to be maintained in, and this Section shall be construed so that the Commitments and Term
Loan are at all times maintained in, “registered form” within the meaning of Section 163(f), 871(h)(2) and
881(c)(2) of the Code and any related regulations (and any other relevant or successor provisions of the Code or such
regulations).

 

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(e) Participations. Any
of the Lenders may at any time, without the consent of, or notice to, the Borrower, sell participations to any Person which
would constitute an Eligible Transferee (other than a natural person or a holding company, investment vehicle or trust for,
or owned and operated for the primary benefit of, a natural person or the Borrower or any of the Borrower’s Affiliates or
Subsidiaries) (each, a “Participant”) in all or a portion of such Lender’s rights and/or obligations
under this Agreement (including all or a portion of the Commitment and/or the Term Loan owing to it); provided that
(i) such Lender’s obligations under this Agreement shall remain unchanged, (ii) such Lender shall remain solely
responsible to the other parties hereto for the performance of such obligations and (iii) the Borrower shall continue to deal
solely and directly with such Lender in connection therewith. Any agreement or instrument pursuant to which a Lender sells
such a participation shall provide that such Lender shall retain the sole right to enforce this Agreement and to approve any
amendment, modification or waiver of any provision of this Agreement; provided that such agreement or instrument may
provide that such Lender will not, without the consent of the Participant, agree to any amendment, modification or waiver
that would (i) increase or extend the term of such Lender’s Commitment, (ii) extend the date fixed for the payment of
principal of or interest on the Term Loan or any portion of any fee hereunder payable to the Participant, (iii) reduce the
amount of any such payment of principal, or (iv) reduce the rate at which interest is payable thereon to a level below the
rate at which the Participant is entitled to receive such interest (other than with respect to default interest). The
Borrower agrees that each Participant shall be entitled to the benefits of Section 5 (subject to the requirements and
limitations therein, including the requirements of Section 5.03(f) (it being understood that the documentation required under
Section 5.03(f) shall be delivered to the participating Lender)) to the same extent as if such Participant had acquired its
interest by assignment pursuant to Section 14.05(b); provided that such Participant shall not be entitled to receive
any greater payment under Section 5 with respect to any participation, than its participating Lender would have been entitled
to receive. To the extent permitted by Law, each Participant also shall be entitled to the benefits of Section 4.03(a) as
though it were a Lender. Each Lender that sells a participation shall, acting solely for this purpose as a non-fiduciary
agent of the Borrower, maintain a register on which it enters the name and address of each Participant and the principal
amounts (and stated interest) of each Participant’s interest in the Term Loan or other obligations under the Loan
Documents (the “Participant Register”); provided that no Lender shall have any obligation to
disclose all or any portion of the Participant Register (including the identity of any Participant or any information
relating to a Participant’s interest in any commitments, loans, letters of credit or its other obligations under any
Loan Document) to any Person except to the extent that such disclosure is necessary to establish that such commitment, loan,
letter of credit or other obligation is in registered form under Section 5f.103-1(c) of the United States Treasury
Regulations. The entries in the Participant Register shall be conclusive absent manifest error, and the parties hereto shall
treat each Person whose name is recorded in the Participant Register as the owner of such participation for all purposes of
this Agreement notwithstanding any notice to the contrary.

 

(f) Security
Interest. Notwithstanding anything to the contrary contained in this Section 14.05, a Lender may collaterally assign any of
its rights or obligations hereunder or under any of the other Loan Documents by way of pledge or collateral assignment of all or
a portion of such Lender’s rights under the Loan Documents to a Federal Reserve Bank provided that no such pledge or assignment
shall release such Lender from its obligations hereunder.

 

Section 14.06. Survival. The
obligations of the Borrower under Sections 5.01, 5.02, 5.03, 14.03 and the
obligations of the Subsidiary Guarantors under Section 12 (solely to the extent guaranteeing any of the
obligations under the foregoing Sections) shall survive the repayment of the Obligations and the termination of the
Commitment and, in the case of the Lenders’ assignment of any interest in the Commitment or the Term Loan hereunder,
shall survive, in the case of any event or circumstance that occurred prior to the effective date of such assignment, the
making of such assignment, notwithstanding that the Lenders may cease to be “Lenders” hereunder. In addition,
each representation and warranty made herein or pursuant hereto shall survive the making of such representation and
warranty.

 

Section 14.07. Captions. The table
of contents and captions and section headings appearing herein are included solely for convenience of reference and are not intended
to affect the interpretation of any provision of this Agreement.

 

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Section 14.08. Counterparts. This
Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument
and any of the parties hereto may execute this Agreement by signing any such counterpart. Delivery of an executed signature page
of this Agreement by facsimile transmission or electronic transmission (in PDF format) shall be effective as delivery of a manually
executed counterpart hereof.

 

Section 14.09. Governing Law. This
Agreement and the rights and obligations of the parties hereunder shall be governed by, and construed in accordance with, the law
of the State of New York, without regard to principles of conflicts of laws that would result in the application of the laws of
any other jurisdiction; provided that Section 5-1401 of the New York General Obligations Law shall apply.

 

Section 14.10. Jurisdiction, Service
of Process and Venue.

 

(a) Submission
to Jurisdiction. Each Obligor agrees that any suit, action or proceeding with respect to this Agreement or any other Loan
Document to which it is a party or any judgment entered by any court in respect thereof may be brought initially in the
federal or state courts in New York, New York or in the courts of its own corporate domicile and irrevocably submits to the
exclusive jurisdiction of each such court for the purpose of any such suit, action, proceeding or judgment. This Section
14.10(a) is for the benefit of the Administrative Agent and the Lenders only and, as a result, neither the Administrative
Agent nor any Lender shall be prevented from taking proceedings in any other courts located in the United States with
jurisdiction, or to extent assets of an Obligor are or may be located in a foreign jurisdiction, in such foreign
jurisdiction. To the extent allowed by any Law, the Administrative Agent and the Lenders may take concurrent proceedings in
any number of jurisdictions located in the United States and any foreign jurisdictions where the assets of any Obligor are or
may be located.

 

(b) Alternative
Process. Nothing herein shall in any way be deemed to limit the ability of the Lenders to serve any process or summons in any
manner permitted by Law.

 

(c) Waiver
of Venue, Etc. Each Obligor irrevocably waives to the fullest extent permitted by law any objection that it may now or hereafter
have to the laying of the venue of any suit, action or proceeding arising out of or relating to this Agreement or any other Loan
Document and hereby further irrevocably waives to the fullest extent permitted by law any claim that any such suit, action or
proceeding brought in any such court has been brought in an inconvenient forum. A final judgment (in respect of which time for
all appeals has elapsed) in any such suit, action or proceeding shall be conclusive and may be enforced in any court to the jurisdiction
of which such Obligor is or may be subject, by suit upon judgment.

 

Section 14.11.
Waiver of Jury Trial. Each obligor,
the administrative agent
and each lender hereby irrevocably
waives, to the fullest extent permitted by applicable law, any and all right to trial by jury in any suit, action or proceeding
arising out of or relating to this agreement,
the other loan documents
or the transactions contemplated hereby or thereby.

 

 

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Section 14.12.
Waiver of Immunity. To the extent that any Obligor may be or become entitled to claim for itself or its property or revenues
any immunity on the ground of sovereignty or the like from suit, court jurisdiction, attachment prior to judgment, attachment
in aid of execution of a judgment or execution of a judgment, and to the extent that in any such jurisdiction there may be attributed
such an immunity (whether or not claimed), such Obligor hereby irrevocably agrees not to so claim and hereby irrevocably waives
such immunity with respect to its obligations under this Agreement and the other Loan Documents.

 

Section
14.13. Entire Agreement. This Agreement and the other Loan
Documents constitute the entire agreement among the parties with respect to the subject matter hereof and thereof and supersede
any and all previous agreements and understandings, oral or written, relating to the subject matter hereof, including any confidentiality
(or similar) agreements.  Each Obligor acknowledges, represents
and warrants that in deciding to enter into this Agreement and the
other loan documents or in taking
or not taking any action hereunder or thereunder, it has not relied, and will not rely, on any statement, representation, warranty,
covenant, agreement or understanding, whether written or oral, of or with the lenders
other than those expressly set forth in this agreement and the other loan
documents.

 

Section
14.14. Severability. If any provision hereof is found by a court to be invalid or unenforceable, to the fullest extent
permitted by any applicable Law the parties agree that such invalidity or unenforceability shall not impair the validity or
enforceability of any other provision hereof.

 

Section 14.15. No Fiduciary Relationship.
The Borrower acknowledges that the Administrative Agent and the Lenders have no fiduciary relationship with, or fiduciary duty
to, the Borrower arising out of or in connection with this Agreement or the other Loan Documents, and the relationship between
the Lenders and the Borrower is solely that of creditor and debtor. This Agreement and the other Loan Documents do not create a
joint venture among the parties.

 

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Section
14.16. Confidentiality. Each Lender agrees to keep confidential all non-public information provided to it by any Obligor
pursuant to this Agreement; provided that nothing herein shall prevent any Lender from disclosing any such information
(i) to any other Lender or, subject to a written agreement to comply with the provisions of this Section 14.16, any Affiliate
of a another Lender or any prospective assignee or participant of the Term Loan permitted by and pursuant to Section 14.05(b)
or (d) that, in each case, is also subject to confidentiality provisions at least as stringent as the provisions of this
Section 14.16, (ii) subject to an agreement to comply with the provisions of this Section, to any actual or prospective
direct or indirect counterparty to any Hedging Agreement (or any professional advisor to such counterparty), (iii) to its
Affiliates employees, officers, directors, agents, attorneys, accountants, trustees and other professional advisors
(collectively, its “Related Parties”); provided that the applicable Lender shall remain liable
hereunder for any breach of this Section 14.16 by any of its Related Parties, (iv) upon the request or demand of any
Governmental Authority or any Regulatory Authority having jurisdiction over such Person or its Related Parties (including any
self-regulatory authority, such as the National Association of Insurance Commissioners), (v) in response to any order of any
court or other Governmental Authority or as may otherwise be required pursuant to any applicable Law, (vi) if required to do
so in connection with any litigation or similar proceeding, (vii) that has been publicly disclosed (other than as a result of
a disclosure in violation of this Section 14.16), (viii) on a confidential basis to the National Association of Insurance
Commissioners or any similar organization or any nationally recognized rating agency that requires access to information
about a Lender’s investment portfolio in connection with ratings issued with respect to such Lender, (ix) in connection
with the exercise of any remedy permitted hereunder or under any other Loan Document, (x) on a confidential basis to (A) any
rating agency in connection with rating the Borrower or its Subsidiaries or the Term Loan or (B) the CUSIP Service Bureau or any
similar agency in connection with the issuance and monitoring of CUSIP numbers of other market identifiers with respect to
the Term Loan or (xi) to any other party that is, and is permitted pursuant to the terms hereof to be, a party hereto; provided
further that, unless specifically prohibited by applicable law or court order, each Lender shall notify the Borrower of
any request by any Governmental Authority or Regulatory Authority or representative thereof (other than any such request in
connection with any examination of the financial condition or other routine examination of such Lender by such Governmental
Authority or Regulatory Authority) for disclosure of any such non-public information prior to disclosure of such information
to enable the Borrower to seek a protection order or otherwise prevent or restrict such disclosure.

 

Section 14.17. Right of
Setoff. If an Event of Default shall have occurred and be continuing, each Lender and each of its Affiliates is hereby
authorized at any time and from time to time, to the fullest extent permitted by applicable Law, to set off and apply any and
all deposits (general or special, time or demand, provisional or final, in whatever currency) at any time held and other
obligations (in whatever currency) at any time owing by such Lender or any such Affiliate to or for the credit or the account
of the Borrower or any other Obligor against any and all of the Obligations now or hereafter existing under this Agreement or
any other Loan Document to such Lender or its Affiliates, irrespective of whether or not such Lender or Affiliate shall have
made any demand under this Agreement or any other Loan Document and although such Obligations of the Borrower or such Obligor
may be contingent or unmatured or are owed to an Affiliate of such Lender. The rights of each Lender and its Affiliates under
this Section are in addition to other rights and remedies (including other rights of setoff) that such Lender and Affiliates
may have. Each Lender agrees to notify the Borrower promptly after any such setoff and application; provided that the
failure to give such notice shall not affect the validity of such setoff and application.

 

Section 14.18. Judgment Currency.
(a) If, for the purposes of obtaining judgment in any court, it is necessary to convert a sum due hereunder in Dollars into another
currency, the parties hereto agree, to the fullest extent permitted by Law, that the rate of exchange used shall be that at which,
in accordance with normal banking procedures, the Administrative Agent could purchase Dollars with such other currency at the buying
spot rate of exchange in the New York foreign exchange market on the Business Day immediately preceding that on which any such
judgment, or any relevant part thereof, is given.

 

(b) The obligations of the Obligors in
respect of any sum due to the Administrative Agent hereunder and under the other Loan Documents shall, notwithstanding any judgment
in a currency other than Dollars, be discharged only to the extent that on the Business Day following receipt by the Administrative
Agent of any sum adjudged to be so due in such other currency the Administrative Agent may, in accordance with normal banking procedures,
purchase Dollars with such other currency. If the amount of Dollars so purchased is less than the sum originally due to the Administrative
Agent in Dollars, the Borrower agrees, to the fullest extent that it may effectively do so, as a separate obligation and notwithstanding
any such judgment, to indemnify the Administrative Agent against such loss. If the amount of Dollars so purchased exceeds the sum
originally due to the Administrative Agent in Dollars, the Administrative Agent shall remit such excess to the Borrower.

 

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Section 14.19. USA PATRIOT Act.
The Administrative Agent and the Lenders hereby notify the Obligors that pursuant to the requirements of the USA PATRIOT Act (Title
III of Pub. L. 107-56 (signed into law October 26, 2001)) (the “Act”), they are required to obtain, verify and
record information that identifies the Obligors, which information includes the name and address of each Obligor and other information
that will allow such Person to identify such Obligor in accordance with the Act.

 

Section
14.20. Release of Collateral and Guarantees; Non-Disturbance Agreements. (a) The
Administrative Agent hereby agrees, at the sole expense of the Borrower, to execute any documents, releases, terminations and
agreements reasonably requested by the Borrower (i) to release any Lien on any Collateral (A) on the date when all
Obligations (other than Warrant Obligations and contingent obligations as to which no claims have been asserted) have been
satisfied in full in cash, (B) that is sold or otherwise disposed of or to be sold or otherwise disposed of as part of or in
connection with an Asset Sale permitted pursuant to Section 9.09 or (C) subject to Sections 14.01 and 14.04, if approved,
authorized or ratified in writing by the Administrative Agent and (ii) to release any Subsidiary Guarantor from its
obligations as a guarantor hereunder if such Person ceases to be a Subsidiary as a result a transaction permitted under the
Loan Documents.

 

(b) The
Administrative Agent hereby agrees to, and each Lender hereby agrees that Administrative Agent may, enter into non-disturbance
or similar agreements in connection with licensing agreements permitted by this Agreement or any other Loan Document, in each case
in form and substance reasonably satisfactory to the Administrative Agent and the counterparty or counterparties to the licensing
agreements.

 

Section 14.21. Acknowledgement and Consent
to Bail-In of EEA Financial Institutions. Notwithstanding anything to the contrary in any Loan Document or in any other agreement,
arrangement or understanding among any such parties, each party hereto acknowledges that any liability of any EEA Financial Institution
arising under any Loan Document, to the extent such liability is unsecured, may be subject to the write-down and conversion powers
of an EEA Resolution Authority and agrees and consents to, and acknowledges and agrees to be bound by:

 

(a) the
application of any Write-Down and Conversion Powers by an EEA Resolution Authority to any such liabilities arising hereunder which
may be payable to it by any party hereto that is an EEA Financial Institution; and

 

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(b) the
effects of any Bail-In Action on any such liability, including, if applicable:

 

(i) a
reduction in full or in part or cancellation of any such liability;

 

(ii) a
conversion of all, or a portion of, such liability into shares or other instruments of ownership in such EEA Financial Institution,
its parent undertaking, or a bridge institution that may be issued to it or otherwise conferred on it, and that such shares or
other instruments of ownership will be accepted by it in lieu of any rights with respect to any such liability under this Agreement
or any other Loan Document; or

 

(iii) the
variation of the terms of such liability in connection with the exercise of the write-down and conversion powers of any EEA Resolution
Authority.

 

[Signature Pages Follow]

 

    -88-

     

    

 

In
witness whereof,
the parties hereto have caused this Agreement to be duly executed and delivered as of the day and year first above written.

 

	 	Borrower:
	 	 
	 	Icagen,
    Inc.
	 	 
	 	By:   	                         
	 	 	Name:	                              
	 	 	Title:	 
	 	 	 	 
	 	Address for Notices:
	 	 
	 	4222 Emperor Blvd.

                                                Durham,
NC 27703

	 	Attn: Richie Cunningham
	 	Email: rcunningham@icagen.com

 

[Signature Page to Credit Agreement and Guaranty]

 

     

     

    

 

	 	Subsidiary Guarantors:
	 	 
	 	Icagen Corp.,
    a Nevada corporation
	 	 	 
	 	By:	                         
	 	 	Name:	 
	 	 	Title:	 
	 	 	 	 
	 	Caldera Discovery, Inc.,
    a Delaware corporation
	 	 	 
	 	By:	                         
	 	 	Name:	                              
	 	 	Title:	 
	 	 	 	 
	 	Xrpro
    Sciences, Inc., a Delaware corporation
	 	 	 
	 	By:	                         
	 	 	Name:	 
	 	 	Title:	 

 

[Signature Page to Credit Agreement and Guaranty]

 

     

     

    

 

	 	Administrative
    Agent:
	 	 
	 	Perceptive
    Credit Holdings II, LP
	 	 
	 	By:	 Perceptive Credit Opportunities GP, LLC, 

its general partner
	 	 	 
	 	By:  	                         
	 	 	Name:	                              
	 	  	Title:	 
	 	 	 	
	 	By:	                                   
	 	 	Name:	       
	 	 	Title:	 
	 	 	 	 
	 	Address for Notices:
	 	 
	 	Perceptive Credit Holdings II, LP
	 	c/o Perceptive Advisors LLC
	 	51 Astor Place, 10th Floor
	 	New York, NY 10003
	 	Attn: Sandeep Dixit
	 	Email: Sandeep@perceptivelife.com

 

[Signature Page to Credit Agreement and Guaranty]

 

     

     

    

 

	 	Lenders:
	 	 
	 	Perceptive
    Credit Holdings II, LP
	 	 
	 	By: 	Perceptive Credit Opportunities GP, LLC, 

its general partner
	 	 	 	 
	 	By:	                         
	 	 	Name:	                              
	 	 	Title:	 
	 	 	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 
	 	 	 	 
	 	Address for Notices:
	 	 
	 	Perceptive Credit Holdings II, LP
	 	c/o Perceptive Advisors LLC
	 	51 Astor Place, 10th Floor
	 	New York, NY 10003
	 	Attn: Sandeep Dixit
	 	Email: Sandeep@perceptivelife.com

 

[Signature Page to Credit Agreement and Guaranty]

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