Document:

Exhibit 4.1

 

 

 

EXHIBIT C

COMMON STOCK PURCHASE WARRANT

 

opgen,
inc.

	Warrant Shares: ______	Issue Date: October ___, 2021

 

THIS COMMON STOCK PURCHASE
WARRANT (the “Warrant”) certifies that, for value received, _____________ or its assigns (the “Holder”)
is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after
the later of Authorized Share Increase Date and April ___, 2022[1]
(the “Initial Exercise Date”) and on or prior to 5:00 p.m. (New York City time) on five (5) year anniversary of the
Initial Exercise Date, provided, however, if such date is not a Trading Day, the immediately following Trading Day (the “Termination
Date”) but not thereafter, to subscribe for and purchase from OpGen, Inc., a Delaware corporation (the “Company”),
up to ______ shares (as subject to adjustment hereunder, the “Warrant Shares”) of Common Stock. The purchase price
of one share of Common Stock under this Warrant shall be equal to the Exercise Price, as defined in Section 2(b).

Section 1.Definitions.
Capitalized terms used and not otherwise defined herein shall have the meanings set forth in that certain Securities Purchase Agreement
(the “Purchase Agreement”), dated October ___, 2021, among the Company and the purchasers signatory thereto.

Section 2.Exercise.

a)              
Exercise of Warrant. Exercise of the purchase rights represented by this Warrant may be made, in whole or in part, at any
time or times on or after the Initial Exercise Date and on or before the Termination Date by delivery to the Company of a duly executed
facsimile copy or PDF copy submitted by e-mail (or e-mail attachment) of the Notice of Exercise in the form annexed hereto (the “Notice
of Exercise”). Within the earlier of (i) two (2) Trading Days and (ii) the number of Trading Days comprising the Standard Settlement
Period (as defined in Section 2(d)(i) herein) following the date of exercise as aforesaid, the Holder shall deliver the aggregate Exercise
Price for the shares specified in the applicable Notice of Exercise by wire transfer or cashier’s check drawn on a United States
bank unless the cashless exercise procedure specified in Section 2(c) below is specified in the applicable Notice of Exercise. No ink-original
Notice of Exercise shall be required, nor shall any medallion guarantee (or other type of guarantee or notarization) of any Notice of
Exercise be required. Notwithstanding anything herein to the contrary, the Holder shall not be required to physically surrender this Warrant
to the Company until the Holder has purchased all of the Warrant Shares available hereunder and the Warrant has been exercised in full,
in which case, the Holder shall surrender this Warrant to the Company for cancellation within three (3) Trading Days of the date on which
the final Notice of Exercise is delivered to the Company. Partial exercises of this Warrant resulting in purchases of a portion of the
total number of Warrant Shares available hereunder shall have the effect of lowering the outstanding number of Warrant Shares purchasable
hereunder in an amount equal to the applicable number of Warrant Shares purchased. The Holder and the Company shall maintain records showing
the number of Warrant Shares purchased and the date of such purchases. The Company shall deliver any objection to any Notice of Exercise
within one (1) Business Day of receipt of such notice. The Holder and any assignee, by acceptance of this Warrant, acknowledge and
agree that, by reason of the provisions of this paragraph, following the purchase of a portion of the Warrant Shares hereunder, the number
of Warrant Shares available for purchase hereunder at any given time may be less than the amount stated on the face hereof.

_________________________________

[1] Six (6) month anniversary of the Issue Date.

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b)              
Exercise Price. The exercise price per share of Common Stock under this Warrant shall be $2.05, subject to adjustment
hereunder (the “Exercise Price”).

c)              
Cashless Exercise. If at the time of exercise hereof there is no effective registration statement registering, or the prospectus
contained therein is not available for the issuance of the Warrant Shares to the Holder, then this Warrant may also be exercised, in whole
or in part, at such time by means of a “cashless exercise” in which the Holder shall be entitled to receive a number of Warrant
Shares equal to the quotient obtained by dividing [(A-B) (X)] by (A), where:

(A) = as applicable:
(i) the VWAP on the Trading Day immediately preceding the date of the applicable Notice of Exercise if such Notice of Exercise is (1)
both executed and delivered pursuant to Section 2(a) hereof on a day that is not a Trading Day or (2) both executed and delivered pursuant
to Section 2(a) hereof on a Trading Day prior to the opening of “regular trading hours” (as defined in Rule 600(b) of Regulation
NMS promulgated under the federal securities laws) on such Trading Day, (ii) at the option of the Holder, either (y) the VWAP on the Trading
Day immediately preceding the date of the applicable Notice of Exercise or (z) the Bid Price of the Common Stock on the principal Trading
Market as reported by Bloomberg L.P. (“Bloomberg”) as of the time of the Holder’s execution of the applicable
Notice of Exercise if such Notice of Exercise is executed during “regular trading hours” on a Trading Day and is delivered
within two (2) hours thereafter (including until two (2) hours after the close of “regular trading hours” on a Trading Day)
pursuant to Section 2(a) hereof or (iii) the VWAP on the date of the applicable Notice of Exercise if the date of such Notice of Exercise
is a Trading Day and such Notice of Exercise is both executed and delivered pursuant to Section 2(a) hereof after the close of “regular
trading hours” on such Trading Day;

 

(B) = the Exercise
Price of this Warrant, as adjusted hereunder; and

 

(X) = the number
of Warrant Shares that would be issuable upon exercise of this Warrant in accordance with the terms of this Warrant if such exercise were
by means of a cash exercise rather than a cashless exercise.

 

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If
Warrant Shares are issued in such a cashless exercise, the parties acknowledge and agree that in accordance with Section 3(a)(9) of the
Securities Act, the Warrant Shares shall take on the registered characteristics of the Warrants being exercised.  The Company
agrees not to take any position contrary to this Section 2(c).

“Bid Price”
means, for any date, the price determined by the first of the following clauses that applies: (a) if the Common Stock is then listed or
quoted on a Trading Market, the bid price of the Common Stock for the time in question (or the nearest preceding date) on the Trading
Market on which the Common Stock is then listed or quoted as reported by Bloomberg (based on a Trading Day from 9:30 a.m. (New York City
time) to 4:02 p.m. (New York City time)), (b)  if OTCQB or OTCQX is not a Trading Market, the volume weighted average price of the
Common Stock for such date (or the nearest preceding date) on OTCQB or OTCQX as applicable, (c) if the Common Stock is not then listed
or quoted for trading on OTCQB or OTCQX and if prices for the Common Stock are then reported on The Pink Open Market (or a similar organization
or agency succeeding to its functions of reporting prices), the most recent bid price per share of the Common Stock so reported, or (d) in
all other cases, the fair market value of a share of Common Stock as determined by an independent appraiser selected in good faith by
the Purchasers of a majority in interest of the Securities then outstanding and reasonably acceptable to the Company, the fees and expenses
of which shall be paid by the Company.

“VWAP”
means, for any date, the price determined by the first of the following clauses that applies: (a) if the Common Stock is then listed or
quoted on a Trading Market, the daily volume weighted average price of the Common Stock for such date (or the nearest preceding date)
on the Trading Market on which the Common Stock is then listed or quoted as reported by Bloomberg (based on a Trading Day from 9:30 a.m.
(New York City time) to 4:02 p.m. (New York City time)), (b)  if OTCQB or OTCQX is not a Trading Market, the volume weighted average
price of the Common Stock for such date (or the nearest preceding date) on OTCQB or OTCQX as applicable, (c) if the Common Stock is not
then listed or quoted for trading on OTCQB or OTCQX and if prices for the Common Stock are then reported on The Pink Open Market (or a
similar organization or agency succeeding to its functions of reporting prices), the most recent bid price per share of the Common Stock
so reported, or (d) in all other cases, the fair market value of a share of Common Stock as determined by an independent appraiser
selected in good faith by the Purchasers of a majority in interest of the Securities then outstanding and reasonably acceptable to the
Company, the fees and expenses of which shall be paid by the Company.

Notwithstanding anything
herein to the contrary, on the Termination Date, this Warrant shall be automatically exercised via cashless exercise pursuant to this
Section 2(c).

 

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		d)	Mechanics of Exercise.

i.  
Delivery of Warrant Shares Upon Exercise. The Company shall cause the Warrant Shares purchased hereunder to be transmitted
by the Transfer Agent to the Holder by crediting the account of the Holder’s or its designee’s balance account with The Depository
Trust Company through its Deposit or Withdrawal at Custodian system (“DWAC”) if the Company is then a participant in
such system and either (A) there is an effective registration statement permitting the issuance of the Warrant Shares to or resale of
the Warrant Shares by Holder or (B) this Warrant is being exercised via cashless exercise, and otherwise by physical delivery of a certificate,
registered in the Company’s share register in the name of the Holder or its designee, for the number of Warrant Shares to which
the Holder is entitled pursuant to such exercise to the address specified by the Holder in the Notice of Exercise by the date that is
the earliest of (i) two (2) Trading Days after the delivery to the Company of the Notice of Exercise, (ii) one (1) Trading Day after delivery
of the aggregate Exercise Price to the Company and (iii) the number of Trading Days comprising the Standard Settlement Period after the
delivery to the Company of the Notice of Exercise (such date, the “Warrant Share Delivery Date”). Upon delivery of
the Notice of Exercise, the Holder shall be deemed for all corporate purposes to have become the holder of record of the Warrant Shares
with respect to which this Warrant has been exercised, irrespective of the date of delivery of the Warrant Shares, provided that payment
of the aggregate Exercise Price (other than in the case of a cashless exercise) is received within the earlier of (i) two (2) Trading
Days and (ii) the number of Trading Days comprising the Standard Settlement Period following delivery of the Notice of Exercise. If the
Company fails for any reason to deliver to the Holder the Warrant Shares subject to a Notice of Exercise by the Warrant Share Delivery
Date, the Company shall pay to the Holder, in cash, as liquidated damages and not as a penalty, for each $1,000 of Warrant Shares subject
to such exercise (based on the VWAP of the Common Stock on the date of the applicable Notice of Exercise), $10 per Trading Day (increasing
to $20 per Trading Day on the third Trading Day after the Warrant Share Delivery Date) for each Trading Day after such Warrant Share Delivery
Date until such Warrant Shares are delivered or Holder rescinds such exercise. The Company agrees to maintain a transfer agent that is
a participant in the FAST program so long as this Warrant remains outstanding and exercisable. As used herein, “Standard Settlement
Period” means the standard settlement period, expressed in a number of Trading Days, on the Company’s primary Trading
Market with respect to the Common Stock as in effect on the date of delivery of the Notice of Exercise.

ii.  
Delivery of New Warrants Upon Exercise. If this Warrant shall have been exercised in part, the Company shall, at the request
of a Holder and upon surrender of this Warrant certificate, at the time of delivery of the Warrant Shares, deliver to the Holder a new
Warrant evidencing the rights of the Holder to purchase the unpurchased Warrant Shares called for by this Warrant, which new Warrant
shall in all other respects be identical with this Warrant.

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iii.  Rescission Rights. If the Company fails to cause the Transfer Agent to transmit to the Holder the Warrant Shares pursuant
to Section 2(d)(i) by the Warrant Share Delivery Date, then the Holder will have the right to rescind such exercise.

iv.  Compensation
for Buy-In on Failure to Timely Deliver Warrant Shares Upon Exercise. In addition to any other rights available to the Holder, if
the Company fails to cause the Transfer Agent to transmit to the Holder the Warrant Shares in accordance with the provisions of Section
2(d)(i) above pursuant to an exercise on or before the Warrant Share Delivery Date, and if after such date the Holder is required by
its broker to purchase (in an open market transaction or otherwise) or the Holder’s brokerage firm otherwise purchases, shares
of Common Stock to deliver in satisfaction of a sale by the Holder of the Warrant Shares which the Holder anticipated receiving upon
such exercise (a “Buy-In”), then the Company shall (A) pay in cash to the Holder the amount, if any, by which (x)
the Holder’s total purchase price (including brokerage commissions, if any) for the shares of Common Stock so purchased exceeds
(y) the amount obtained by multiplying (1) the number of Warrant Shares that the Company was required to deliver to the Holder in connection
with the exercise at issue times (2) the price at which the sell order giving rise to such purchase obligation was executed, and (B)
at the option of the Holder, either reinstate the portion of the Warrant and equivalent number of Warrant Shares for which such exercise
was not honored (in which case such exercise shall be deemed rescinded) or deliver to the Holder the number of shares of Common Stock
that would have been issued had the Company timely complied with its exercise and delivery obligations hereunder. For example, if the
Holder purchases Common Stock having a total purchase price of $11,000 to cover a Buy-In with respect to an attempted exercise of shares
of Common Stock with an aggregate sale price giving rise to such purchase obligation of $10,000, under clause (A) of the immediately
preceding sentence the Company shall be required to pay the Holder $1,000. The Holder shall provide the Company written notice indicating
the amounts payable to the Holder in respect of the Buy-In and, upon request of the Company, evidence of the amount of such loss. Nothing
herein shall limit a Holder’s right to pursue any other remedies available to it hereunder, at law or in equity including, without
limitation, a decree of specific performance and/or injunctive relief with respect to the Company’s failure to timely deliver shares
of Common Stock upon exercise of the Warrant as required pursuant to the terms hereof.

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v.  
No Fractional Shares or Scrip. No fractional shares or scrip representing fractional shares shall be issued upon the exercise
of this Warrant. As to any fraction of a share which the Holder would otherwise be entitled to purchase upon such exercise, the Company
shall, at its election, either pay a cash adjustment in respect of such final fraction in an amount equal to such fraction multiplied
by the Exercise Price or round up to the next whole share.

vi.  Charges, Taxes
and Expenses. Issuance of Warrant Shares shall be made without charge to the Holder for any issue or transfer tax or other incidental
expense in respect of the issuance of such Warrant Shares, all of which taxes and expenses shall be paid by the Company, and such Warrant
Shares shall be issued in the name of the Holder or in such name or names as may be directed by the Holder; provided, however,
that, in the event that Warrant Shares are to be issued in a name other than the name of the Holder, this Warrant when surrendered for
exercise shall be accompanied by the Assignment Form attached hereto duly executed by the Holder and the Company may require, as a condition
thereto, the payment of a sum sufficient to reimburse it for any transfer tax incidental thereto. The Company shall pay all Transfer
Agent fees required for same-day processing of any Notice of Exercise and all fees to the Depository Trust Company (or another established
clearing corporation performing similar functions) required for same-day electronic delivery of the Warrant Shares.

vii.  
Closing of Books. The Company will not close its stockholder books or records in any manner which prevents the timely exercise
of this Warrant, pursuant to the terms hereof.

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		e)	Holder’s Exercise Limitations. The Company shall not effect any exercise of this Warrant,
and a Holder shall not have the right to exercise any portion of this Warrant, pursuant to Section 2 or otherwise, to the extent that
after giving effect to such issuance after exercise as set forth on the applicable Notice of Exercise, the Holder (together with the Holder’s
Affiliates, and any other Persons acting as a group together with the Holder or any of the Holder’s Affiliates (such Persons, “Attribution
Parties”)), would beneficially own in excess of the Beneficial Ownership Limitation (as defined below).  For purposes of
the foregoing sentence, the number of shares of Common Stock beneficially owned by the Holder and its Affiliates and Attribution Parties
shall include the number of shares of Common Stock issuable upon exercise of this Warrant with respect to which such determination is
being made, but shall exclude the number of shares of Common Stock which would be issuable upon (i) exercise of the remaining, nonexercised
portion of this Warrant beneficially owned by the Holder or any of its Affiliates or Attribution Parties and (ii) exercise or conversion
of the unexercised or nonconverted portion of any other securities of the Company (including, without limitation, any other Common Stock
Equivalents) subject to a limitation on conversion or exercise analogous to the limitation contained herein beneficially owned by the
Holder or any of its Affiliates or Attribution Parties.  Except as set forth in the preceding sentence, for purposes of this Section
2(e), beneficial ownership shall be calculated in accordance with Section 13(d) of the Exchange Act and the rules and regulations promulgated
thereunder, it being acknowledged by the Holder that the Company is not representing to the Holder that such calculation is in compliance
with Section 13(d) of the Exchange Act and the Holder is solely responsible for any schedules required to be filed in accordance therewith.
To the extent that the limitation contained in this Section 2(e) applies, the determination of whether this Warrant is exercisable (in
relation to other securities owned by the Holder together with any Affiliates and Attribution Parties) and of which portion of this Warrant
is exercisable shall be in the sole discretion of the Holder, and the submission of a Notice of Exercise shall be deemed to be the Holder’s
determination of whether this Warrant is exercisable (in relation to other securities owned by the Holder together with any Affiliates
and Attribution Parties) and of which portion of this Warrant is exercisable, in each case subject to the Beneficial Ownership Limitation,
and the Company shall have no obligation to verify or confirm the accuracy of such determination. In addition, a determination as to any
group status as contemplated above shall be determined in accordance with Section 13(d) of the Exchange Act and the rules and regulations
promulgated thereunder. For purposes of this Section 2(e), in determining the number of outstanding shares of Common Stock, a Holder may
rely on the number of outstanding shares of Common Stock as reflected in (A) the Company’s most recent periodic or annual report
filed with the Commission, as the case may be, (B) a more recent public announcement by the Company or (C) a more recent written notice
by the Company or the Transfer Agent setting forth the number of shares of Common Stock outstanding.  Upon the written or oral request
of a Holder, the Company shall within one Trading Day confirm orally and in writing to the Holder the number of shares of Common Stock
then outstanding.  In any case, the number of outstanding shares of Common Stock shall be determined after giving effect to the conversion
or exercise of securities of the Company, including this Warrant, by the Holder or its Affiliates or Attribution Parties since the date
as of which such number of outstanding shares of Common Stock was reported. The “Beneficial Ownership Limitation” shall
be [4.99%] [9.99%] of the number of shares of the Common Stock outstanding immediately after giving effect to the issuance of shares of
Common Stock issuable upon exercise of this Warrant. The Holder, upon notice to the Company, may increase or decrease the Beneficial Ownership
Limitation provisions of this Section 2(e), provided that the Beneficial Ownership Limitation in no event exceeds 9.99% of the number
of shares of the Common Stock outstanding immediately after giving effect to the issuance of shares of Common Stock upon exercise of this
Warrant held by the Holder and the provisions of this Section 2(e) shall continue to apply. Any increase in the Beneficial Ownership Limitation
will not be effective until the 61st day after such notice is delivered to the Company. The provisions of this paragraph shall
be construed and implemented in a manner otherwise than in strict conformity with the terms of this Section 2(e) to correct this paragraph
(or any portion hereof) which may be defective or inconsistent with the intended Beneficial Ownership Limitation herein contained or to
make changes or supplements necessary or desirable to properly give effect to such limitation. The limitations contained in this paragraph
shall apply to a successor holder of this Warrant.

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Section 3.Certain
Adjustments.

a)     
Stock Dividends and Splits. If the Company, at any time while this Warrant is outstanding: (i) pays a stock dividend or
otherwise makes a distribution or distributions on shares of its Common Stock or any other equity or equity equivalent securities payable
in shares of Common Stock (which, for avoidance of doubt, shall not include any shares of Common Stock issued by the Company upon exercise
of this Warrant), (ii) subdivides outstanding shares of Common Stock into a larger number of shares, (iii) combines (including by way
of reverse stock split) outstanding shares of Common Stock into a smaller number of shares, or (iv) issues by reclassification of shares
of the Common Stock any shares of capital stock of the Company, then in each case the Exercise Price shall be multiplied by a fraction
of which the numerator shall be the number of shares of Common Stock (excluding treasury shares, if any) outstanding immediately before
such event and of which the denominator shall be the number of shares of Common Stock outstanding immediately after such event, and the
number of shares issuable upon exercise of this Warrant shall be proportionately adjusted such that the aggregate Exercise Price of this
Warrant shall remain unchanged. Any adjustment made pursuant to this Section 3(a) shall become effective immediately after the record
date for the determination of stockholders entitled to receive such dividend or distribution and shall become effective immediately after
the effective date in the case of a subdivision, combination or re-classification.

b)     
[RESERVED]

c)    
Subsequent Rights Offerings. In addition to any adjustments pursuant to Section 3(a) above, if at any time the Company grants,
issues or sells any Common Stock Equivalents or rights to purchase stock, warrants, securities or other property pro rata to the record
holders of any class of shares of Common Stock (the “Purchase Rights”), then the Holder will be entitled to acquire,
upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder could have acquired if the Holder had
held the number of shares of Common Stock acquirable upon complete exercise of this Warrant (without regard to any limitations on exercise
hereof, including without limitation, the Beneficial Ownership Limitation) immediately before the date on which a record is taken for
the grant, issuance or sale of such Purchase Rights, or, if no such record is taken, the date as of which the record holders of shares
of Common Stock are to be determined for the grant, issue or sale of such Purchase Rights (provided, however, that, to the
extent that the Holder’s right to participate in any such Purchase Right would result in the Holder exceeding the Beneficial Ownership
Limitation, then the Holder shall not be entitled to participate in such Purchase Right to such extent (or beneficial ownership of such
shares of Common Stock as a result of such Purchase Right to such extent) and such Purchase Right to such extent shall be held in abeyance
for the Holder until such time, if ever, as its right thereto would not result in the Holder exceeding the Beneficial Ownership Limitation).

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d)     
Pro Rata Distributions. During such time as this Warrant is outstanding, if the Company shall declare or make any dividend
or other distribution of its assets (or rights to acquire its assets) to holders of shares of Common Stock, by way of return of capital
or otherwise (including, without limitation, any distribution of cash, stock or other securities, property or options by way of a dividend,
spin off, reclassification, corporate rearrangement, scheme of arrangement or other similar transaction) (a “Distribution”),
at any time after the issuance of this Warrant, then, in each such case, the Holder shall be entitled to participate in such Distribution
to the same extent that the Holder would have participated therein if the Holder had held the number of shares of Common Stock acquirable
upon complete exercise of this Warrant (without regard to any limitations on exercise hereof, including without limitation, the Beneficial
Ownership Limitation) immediately before the date of which a record is taken for such Distribution, or, if no such record is taken, the
date as of which the record holders of shares of Common Stock are to be determined for the participation in such Distribution (provided,
however, that, to the extent that the Holder's right to participate in any such Distribution would result in the Holder exceeding
the Beneficial Ownership Limitation, then the Holder shall not be entitled to participate in such Distribution to such extent (or in the
beneficial ownership of any shares of Common Stock as a result of such Distribution to such extent) and the portion of such Distribution
shall be held in abeyance for the benefit of the Holder until such time, if ever, as its right thereto would not result in the Holder
exceeding the Beneficial Ownership Limitation).

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e)    
Fundamental Transaction. If, at any time while this Warrant is outstanding, (i) the Company, directly or indirectly, in
one or more related transactions effects any merger or consolidation of the Company with or into another Person, (ii) the Company or any
Subsidiary, directly or indirectly, effects any sale, lease, license, assignment, transfer, conveyance or other disposition of all or
substantially all of its assets in one or a series of related transactions, (iii) any, direct or indirect, purchase offer, tender offer
or exchange offer (whether by the Company or another Person) is completed pursuant to which holders of Common Stock are permitted to sell,
tender or exchange their shares for other securities, cash or property and has been accepted by the holders of 50% or more of the outstanding
Common Stock, (iv) the Company, directly or indirectly, in one or more related transactions effects any reclassification, reorganization
or recapitalization of the Common Stock or any compulsory share exchange pursuant to which the Common Stock is effectively converted into
or exchanged for other securities, cash or property, or (v) the Company, directly or indirectly, in one or more related transactions consummates
a stock or share purchase agreement or other business combination (including, without limitation, a reorganization, recapitalization,
spin-off, merger or scheme of arrangement) with another Person or group of Persons whereby such other Person or group acquires more than
50% of the outstanding shares of Common Stock (not including any shares of Common Stock held by the other Person or other Persons making
or party to, or associated or affiliated with the other Persons making or party to, such stock or share purchase agreement or other business
combination) (each a “Fundamental Transaction”), then, upon any subsequent exercise of this Warrant, the Holder shall
have the right to receive, for each Warrant Share that would have been issuable upon such exercise immediately prior to the occurrence
of such Fundamental Transaction, at the option of the Holder (without regard to any limitation in Section 2(e) on the exercise of this
Warrant), the number of shares of Common Stock of the successor or acquiring corporation or of the Company, if it is the surviving corporation,
and any additional consideration (the “Alternate Consideration”) receivable as a result of such Fundamental Transaction
by a holder of the number of shares of Common Stock for which this Warrant is exercisable immediately prior to such Fundamental Transaction
(without regard to any limitation in Section 2(e) on the exercise of this Warrant). For purposes of any such exercise, the determination
of the Exercise Price shall be appropriately adjusted to apply to such Alternate Consideration based on the amount of Alternate Consideration
issuable in respect of one share of Common Stock in such Fundamental Transaction, and the Company shall apportion the Exercise Price among
the Alternate Consideration in a reasonable manner reflecting the relative value of any different components of the Alternate Consideration.
If holders of Common Stock are given any choice as to the securities, cash or property to be received in a Fundamental Transaction, then
the Holder shall be given the same choice as to the Alternate Consideration it receives upon any exercise of this Warrant following such
Fundamental Transaction. Notwithstanding anything to the contrary, in the event of a Fundamental Transaction, the Company or any Successor
Entity (as defined below) shall, at the Holder’s option, exercisable at any time concurrently with, or within 30 days after, the
consummation of the Fundamental Transaction (or, if later, the date of the public announcement of the applicable Fundamental Transaction),
purchase this Warrant from the Holder by paying to the Holder an amount of cash equal to the Black Scholes Value (as defined below) of
the remaining unexercised portion of this Warrant on the date of the consummation of such Fundamental Transaction; provided, however,
that, if the Fundamental Transaction is not within the Company's control, including not approved by the Company's Board of Directors,
Holder shall only be entitled to receive from the Company or any Successor Entity the same type or form of consideration (and in the same
proportion), at the Black Scholes Value of the unexercised portion of this Warrant, that is being offered and paid to the holders of Common
Stock of the Company in connection with the Fundamental Transaction, whether that consideration be in the form of cash, stock or any combination
thereof, or whether the holders of Common Stock are given the choice to receive from among alternative forms of consideration in connection
with the Fundamental Transaction; provided, further, that if holders of Common Stock of the Company are not offered or paid
any consideration in such Fundamental Transaction, such holders of Common Stock will be deemed to have received common stock of the Successor
Entity (which Entity may be the Company following such Fundamental Transaction) in such Fundamental Transaction. “Black Scholes
Value” means the value of this Warrant based on the Black-Scholes Option Pricing Model obtained from the “OV” function
on Bloomberg determined as of the day of consummation of the applicable Fundamental Transaction for pricing purposes and reflecting (A)
a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the time between the date of the public announcement
of the applicable Fundamental Transaction and the Termination Date, (B) an expected volatility equal to the greater of 100% and the 100
day volatility obtained from the HVT function on Bloomberg (determined utilizing a 365 day annualization factor) as of the Trading Day
immediately following the public announcement of the applicable Fundamental Transaction, (C) the underlying price per share used in such
calculation shall be the greater of (i) the sum of the price per share being offered in cash, if any, plus the value of any non-cash consideration,
if any, being offered in such Fundamental Transaction and (ii) the highest VWAP during the period beginning on the Trading Day immediately
preceding the announcement of the applicable Fundamental Transaction (or the consummation of the applicable Fundamental Transaction, if
earlier) and ending on the Trading Day of the Holder’s request pursuant to this Section 3(e) and (D) a remaining option time equal
to the time between the date of the public announcement of the applicable Fundamental Transaction and the Termination Date and (E) a zero
cost of borrow. The payment of the Black Scholes Value will be made by wire transfer of immediately available funds (or such other consideration)
within the later of (i) five Business Days of the Holder’s election and (ii) the date of consummation of the Fundamental Transaction.
The Company shall cause any successor entity in a Fundamental Transaction in which the Company is not the survivor (the “Successor
Entity”) to assume in writing all of the obligations of the Company under this Warrant and the other Transaction Documents in
accordance with the provisions of this Section 3(e) pursuant to written agreements in form and substance reasonably satisfactory to the
Holder and approved by the Holder (without unreasonable delay) prior to such Fundamental Transaction and shall, at the option of the Holder,
deliver to the Holder in exchange for this Warrant a security of the Successor Entity evidenced by a written instrument substantially
similar in form and substance to this Warrant which is exercisable for a corresponding number of shares of capital stock of such Successor
Entity (or its parent entity) equivalent to the shares of Common Stock acquirable and receivable upon exercise of this Warrant (without
regard to any limitations on the exercise of this Warrant) prior to such Fundamental Transaction, and with an exercise price which applies
the exercise price hereunder to such shares of capital stock (but taking into account the relative value of the shares of Common Stock
pursuant to such Fundamental Transaction and the value of such shares of capital stock, such number of shares of capital stock and such
exercise price being for the purpose of protecting the economic value of this Warrant immediately prior to the consummation of such Fundamental
Transaction), and which is reasonably satisfactory in form and substance to the Holder. Upon the occurrence of any such Fundamental Transaction,
the Successor Entity shall succeed to, and be substituted for (so that from and after the date of such Fundamental Transaction, the provisions
of this Warrant and the other Transaction Documents referring to the “Company” shall refer instead to the Successor Entity),
and may exercise every right and power of the Company and shall assume all of the obligations of the Company under this Warrant and the
other Transaction Documents with the same effect as if such Successor Entity had been named as the Company herein.

    	10  

    	 

    

f)       
Calculations. All calculations under this Section 3 shall be made to the nearest cent or the nearest 1/100th of a share,
as the case may be. For purposes of this Section 3, the number of shares of Common Stock deemed to be issued and outstanding as of a given
date shall be the sum of the number of shares of Common Stock (excluding treasury shares, if any) issued and outstanding.

g)     
Notice to Holder.

i.   
Adjustment to Exercise Price. Whenever the Exercise Price is adjusted pursuant to any provision of this Section 3, the Company
shall promptly deliver to the Holder by facsimile or email a notice setting forth the Exercise Price after such adjustment and any resulting
adjustment to the number of Warrant Shares and setting forth a brief statement of the facts requiring such adjustment.

ii.   Notice to Allow Exercise by Holder. If (A) the Company shall declare a dividend (or any other distribution in whatever form)
on the Common Stock, (B) the Company shall declare a special nonrecurring cash dividend on or a redemption of the Common Stock, (C) the
Company shall authorize the granting to all holders of the Common Stock rights or warrants to subscribe for or purchase any shares of
capital stock of any class or of any rights, (D) the approval of any stockholders of the Company shall be required in connection with
any reclassification of the Common Stock, any consolidation or merger to which the Company (or any of its Subsidiaries) is a party, any
sale or transfer of all or substantially all of its assets, or any compulsory share exchange whereby the Common Stock is converted into
other securities, cash or property, or (E) the Company shall authorize the voluntary or involuntary dissolution, liquidation or winding
up of the affairs of the Company, then, in each case, the Company shall cause to be delivered by facsimile or email to the Holder at its
last facsimile number or email address as it shall appear upon the Warrant Register of the Company, at least 20 calendar days prior to
the applicable record or effective date hereinafter specified, a notice stating (x) the date on which a record is to be taken for the
purpose of such dividend, distribution, redemption, rights or warrants, or if a record is not to be taken, the date as of which the holders
of the Common Stock of record to be entitled to such dividend, distributions, redemption, rights or warrants are to be determined or (y)
the date on which such reclassification, consolidation, merger, sale, transfer or share exchange is expected to become effective or close,
and the date as of which it is expected that holders of the Common Stock of record shall be entitled to exchange their shares of the Common
Stock for securities, cash or other property deliverable upon such reclassification, consolidation, merger, sale, transfer or share exchange;
provided that the failure to deliver such notice or any defect therein or in the delivery thereof shall not affect the validity of the
corporate action required to be specified in such notice. To the extent that any notice provided in this Warrant constitutes, or contains,
material, non-public information regarding the Company or any of the Subsidiaries, the Company shall simultaneously file such notice with
the Commission pursuant to a Current Report on Form 8-K. The Holder shall remain entitled to exercise this Warrant during the period commencing
on the date of such notice to the effective date of the event triggering such notice except as may otherwise be expressly set forth herein.

    	11  

    	 

    

Section 4.Transfer
of Warrant.

a)    
Transferability. This Warrant and all rights hereunder (including, without limitation, any registration rights) are transferable,
in whole or in part, upon surrender of this Warrant at the principal office of the Company or its designated agent, together with a written
assignment of this Warrant substantially in the form attached hereto duly executed by the Holder or its agent or attorney and funds sufficient
to pay any transfer taxes payable upon the making of such transfer. Upon such surrender and, if required, such payment, the Company shall
execute and deliver a new Warrant or Warrants in the name of the assignee or assignees, as applicable, and in the denomination or denominations
specified in such instrument of assignment, and shall issue to the assignor a new Warrant evidencing the portion of this Warrant not so
assigned, and this Warrant shall promptly be cancelled. Notwithstanding anything herein to the contrary, the Holder shall not be required
to physically surrender this Warrant to the Company unless the Holder has assigned this Warrant in full, in which case, the Holder shall
surrender this Warrant to the Company within three (3) Trading Days of the date on which the Holder delivers an assignment form to the
Company assigning this Warrant in full. The Warrant, if properly assigned in accordance herewith, may be exercised by a new holder for
the purchase of Warrant Shares without having a new Warrant issued.

b)   New Warrants. This Warrant may be divided or combined with other Warrants upon presentation hereof at the aforesaid office
of the Company, together with a written notice specifying the names and denominations in which new Warrants are to be issued, signed by
the Holder or its agent or attorney. Subject to compliance with Section 4(a), as to any transfer which may be involved in such division
or combination, the Company shall execute and deliver a new Warrant or Warrants in exchange for the Warrant or Warrants to be divided
or combined in accordance with such notice. All Warrants issued on transfers or exchanges shall be dated the initial Issue Date of this
Warrant and shall be identical with this Warrant except as to the number of Warrant Shares issuable pursuant thereto.

c)    
Warrant Register. The Company shall register this Warrant, upon records to be maintained by the Company for that purpose
(the “Warrant Register”), in the name of the record Holder hereof from time to time. The Company may deem and treat
the registered Holder of this Warrant as the absolute owner hereof for the purpose of any exercise hereof or any distribution to the Holder,
and for all other purposes, absent actual notice to the contrary.

    	12  

    	 

    

Section 5.Miscellaneous.

a)     
No Rights as Stockholder Until Exercise; No Settlement in Cash. This Warrant does not entitle the Holder to any voting rights,
dividends or other rights as a stockholder of the Company prior to the exercise hereof as set forth in Section 2(d)(i), except as expressly
set forth in Section 3. Without limiting any rights of a Holder to receive Warrant Shares on a “cashless exercise” pursuant
to Section 2(c) or to receive cash payments pursuant to Section 2(d)(i) and Section 2(d)(iv) herein, in no event shall the Company be
required to net cash settle an exercise of this Warrant.

b)   
Loss, Theft, Destruction or Mutilation of Warrant. The Company covenants that upon receipt by the Company of evidence reasonably
satisfactory to it of the loss, theft, destruction or mutilation of this Warrant or any stock certificate relating to the Warrant Shares,
and in case of loss, theft or destruction, of indemnity or security reasonably satisfactory to it (which, in the case of the Warrant,
shall not include the posting of any bond), and upon surrender and cancellation of such Warrant or stock certificate, if mutilated, the
Company will make and deliver a new Warrant or stock certificate of like tenor and dated as of such cancellation, in lieu of such Warrant
or stock certificate.

c)     
Saturdays, Sundays, Holidays, etc. If the last or appointed day for the taking of any action or the expiration of any right
required or granted herein shall not be a Business Day, then such action may be taken or such right may be exercised on the next succeeding
Business Day.

d)     
Authorized Shares.

The Company covenants
that, during the period the Warrant is outstanding, it will seek Authorized Share Approval in order to reserve from its authorized and
unissued Common Stock a sufficient number of shares to provide for the issuance of the Warrant Shares upon the exercise of any purchase
rights under this Warrant. The Company further covenants that its issuance of this Warrant shall constitute full authority to its officers
who are charged with the duty of issuing the necessary Warrant Shares upon the exercise of the purchase rights under this Warrant. The
Company will take all such reasonable action as may be necessary to assure that such Warrant Shares may be issued as provided herein without
violation of any applicable law or regulation, or of any requirements of the Trading Market upon which the Common Stock may be listed.
The Company covenants that all Warrant Shares which may be issued upon the exercise of the purchase rights represented by this Warrant
will, upon exercise of the purchase rights represented by this Warrant and payment for such Warrant Shares in accordance herewith, be
duly authorized, validly issued, fully paid and nonassessable and free from all taxes, liens and charges created by the Company in respect
of the issue thereof (other than taxes in respect of any transfer occurring contemporaneously with such issue).

    	13  

    	 

    

Except and to the extent
as necessary in connection with the Authorized Share Approval or otherwise waived or consented to by the Holder, the Company shall not
by any action, including, without limitation, amending its certificate of incorporation or through any reorganization, transfer of assets,
consolidation, merger, dissolution, issue or sale of securities or any other voluntary action, avoid or seek to avoid the observance or
performance of any of the terms of this Warrant, but will at all times in good faith assist in the carrying out of all such terms and
in the taking of all such actions as may be necessary or appropriate to protect the rights of Holder as set forth in this Warrant against
impairment. Without limiting the generality of the foregoing, the Company will (i) not increase the par value of any Warrant Shares above
the amount payable therefor upon such exercise immediately prior to such increase in par value, (ii) take all such action as may be necessary
or appropriate in order that the Company may validly and legally issue fully paid and nonassessable Warrant Shares upon the exercise of
this Warrant and (iii) use commercially reasonable efforts to obtain all such authorizations, exemptions or consents from any public regulatory
body having jurisdiction thereof, as may be, necessary to enable the Company to perform its obligations under this Warrant.

Before taking any action
which would result in an adjustment in the number of Warrant Shares for which this Warrant is exercisable or in the Exercise Price, the
Company shall obtain all such authorizations or exemptions thereof, or consents thereto, as may be necessary from any public regulatory
body or bodies having jurisdiction thereof.

e)  
Jurisdiction. All questions concerning the construction, validity, enforcement and interpretation of this Warrant shall
be determined in accordance with the provisions of the Purchase Agreement.

f)       Restrictions. The Holder acknowledges that the Warrant Shares acquired upon the exercise of this Warrant, if not registered,
and the Holder does not utilize cashless exercise, will have restrictions upon resale imposed by state and federal securities laws.

g)     
Nonwaiver and Expenses. No course of dealing or any delay or failure to exercise any right hereunder on the part of Holder
shall operate as a waiver of such right or otherwise prejudice the Holder’s rights, powers or remedies. Without limiting any other
provision of this Warrant or the Purchase Agreement, if the Company willfully and knowingly fails to comply with any provision of this
Warrant, which results in any material damages to the Holder, the Company shall pay to the Holder such amounts as shall be sufficient
to cover any costs and expenses including, but not limited to, reasonable attorneys’ fees, including those of appellate proceedings,
incurred by the Holder in collecting any amounts due pursuant hereto or in otherwise enforcing any of its rights, powers or remedies hereunder.

h)   
Notices. Any notice, request or other document required or permitted to be given or delivered to the Holder by the Company
shall be delivered in accordance with the notice provisions of the Purchase Agreement.

    	14  

    	 

    

i)       
Limitation of Liability. No provision hereof, in the absence of any affirmative action by the Holder to exercise this Warrant
to purchase Warrant Shares, and no enumeration herein of the rights or privileges of the Holder, shall give rise to any liability of the
Holder for the purchase price of any Common Stock or as a stockholder of the Company, whether such liability is asserted by the Company
or by creditors of the Company.

j)       Remedies. The Holder, in addition to being entitled to exercise all rights granted by law, including recovery of damages,
will be entitled to specific performance of its rights under this Warrant. The Company agrees that monetary damages would not be adequate
compensation for any loss incurred by reason of a breach by it of the provisions of this Warrant and hereby agrees to waive and not to
assert the defense in any action for specific performance that a remedy at law would be adequate.

k)    
Successors and Assigns. Subject to applicable securities laws, this Warrant and the rights and obligations evidenced hereby
shall inure to the benefit of and be binding upon the successors and permitted assigns of the Company and the successors and permitted
assigns of Holder. The provisions of this Warrant are intended to be for the benefit of any Holder from time to time of this Warrant and
shall be enforceable by the Holder or holder of Warrant Shares.

l)        Amendment. This Warrant may be modified or amended or the provisions hereof waived with the written consent of the Company
and the Holder.

m)   
Severability. Wherever possible, each provision of this Warrant shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision of this Warrant shall be prohibited by or invalid under applicable law, such provision
shall be ineffective to the extent of such prohibition or invalidity, without invalidating the remainder of such provisions or the remaining
provisions of this Warrant.

n)     
Headings. The headings used in this Warrant are for the convenience of reference only and shall not, for any purpose, be
deemed a part of this Warrant.

 

********************

 

(Signature Page Follows)

 

    	15  

    	 

    

 

 

IN WITNESS WHEREOF, the Company
has caused this Warrant to be executed by its officer thereunto duly authorized as of the date first above indicated.

	
    OPgen, inc.

     

     

	
    By:__________________________________________

    Name:

    Title:

     

 

 

    	  

    	 

    

 

NOTICE OF EXERCISE

 

To:opgen,
inc.

 

(1)  
The undersigned hereby elects to purchase ________ Warrant Shares of the Company pursuant to the terms of the attached Warrant
(only if exercised in full), and tenders herewith payment of the exercise price in full, together with all applicable transfer taxes,
if any.

(2)  
Payment shall take the form of (check applicable box):

[ ] in lawful money
of the United States; or

[ ] if permitted, the
cancellation of such number of Warrant Shares as is necessary, in accordance with the formula set forth in subsection 2(c), to exercise
this Warrant with respect to the maximum number of Warrant Shares purchasable pursuant to the cashless exercise procedure set forth in
subsection 2(c).

(3)  
Please issue said Warrant Shares in the name of the undersigned or in such other name as is specified below:

_______________________________

 

 

The Warrant Shares shall be delivered to the following
DWAC Account Number:

 

_______________________________

 

_______________________________

 

_______________________________

 

 

[SIGNATURE
OF HOLDER]

 

Name of Investing Entity: ________________________________________________

Signature of Authorized Signatory of Investing
Entity: ________________________

Name of Authorized Signatory: ____________________________________________

Title of Authorized Signatory:______________________________________________

Date: _______________________________________________________________

 

 

 

    	  

    	 

    

 

EXHIBIT B

 

 

ASSIGNMENT FORM

(To assign the foregoing
Warrant, execute this form and supply required information. Do not use this form to purchase shares.)

FOR VALUE RECEIVED, the
foregoing Warrant and all rights evidenced thereby are hereby assigned to

	Name:	                                                           
	 	(Please Print)
	Address:	                                                           
	
     

    Phone Number:

    Email Address:
	
    (Please Print)

    ______________________________________

    ______________________________________

	Dated: _______________ __, ______	 
	Holder’s Signature:                                           	 
	Holder’s Address:Exhibit 10.1

 

 

 

SECURITIES PURCHASE AGREEMENT

This Securities Purchase
Agreement (this “Agreement”) is dated as of October 13, 2021, between OpGen, Inc., a Delaware corporation (the “Company”),
and each purchaser identified on the signature pages hereto (each, including its successors and assigns, a “Purchaser”
and collectively, the “Purchasers”).

WHEREAS, subject to the
terms and conditions set forth in this Agreement and pursuant to an effective registration statement under the Securities Act (as defined
below), the Company desires to issue and sell to each Purchaser, and each Purchaser, severally and not jointly, desires to purchase from
the Company, securities of the Company as more fully described in this Agreement.

NOW, THEREFORE, IN CONSIDERATION
of the mutual covenants contained in this Agreement, and for other good and valuable consideration, the receipt and adequacy of which
are hereby acknowledged, the Company and each Purchaser agree as follows:

ARTICLE I. 

DEFINITIONS

1.1           
Definitions. In addition to the terms defined elsewhere in this Agreement: (a) capitalized
terms that are not otherwise defined herein have the meanings given to such terms in the Certificate of Designation (as defined herein),
and (b) the following terms have the meanings set forth in this Section 1.1:

“Acquiring
Person” shall have the meaning ascribed to such term in Section 4.5.

“Action”
shall have the meaning ascribed to such term in Section 3.1(j).

“Affiliate”
means any Person that, directly or indirectly through one or more intermediaries, controls or is controlled by or is under common control
with a Person, as such terms are used in and construed under Rule 405 under the Securities Act.

“Amendment”
means the amendment to the Company’s certificate of incorporation that increases the number of authorized shares of Common Stock
from 50,000,000 to not less than 100,000,000 shares of Common Stock.

“Authorized
Share Increase Date” means, subject to Authorized Share Approval, the date on which the Amendment is filed with and accepted
by the State of Delaware.

“Authorized
Share Approval” means approval of the Amendment by the stockholders of the Company.

“Board of
Directors” means the board of directors of the Company.

    	1  

    	 

    

 

“Business
Day” means any day other than Saturday, Sunday or other day on which commercial banks in The City of New York are authorized
or required by law to remain closed; provided, however, for clarification, commercial banks shall not be deemed to be authorized
or required by law to remain closed due to “stay at home”, “shelter-in-place”, “non-essential employee” 
or any other similar orders or restrictions or the closure of any physical branch locations at the direction of any governmental authority
so long as the electronic funds transfer systems (including for wire transfers) of commercial banks in The City of New York generally
are open for use by customers on such day.

“Certificate
of Designation” means the Certificate of Designation to be filed prior to the Closing by the Company with the Secretary of State
of Delaware, in the form of Exhibit A attached hereto.

“Closing”
means the closing of the purchase and sale of the Securities pursuant to Section 2.1.

“Closing
Date” means the Trading Day on which all of the Transaction Documents have been executed and delivered by the applicable parties
thereto, and all conditions precedent to (i) the Purchasers’ obligations to pay the Subscription Amount and (ii) the Company’s
obligations to deliver the Securities, in each case, have been satisfied or waived, but in no event later than the second (2nd)
Trading Day following the date hereof.

“Commission”
means the United States Securities and Exchange Commission.

“Common
Stock” means the common stock of the Company, par value $0.01 per share, and any other class of securities into which such securities
may hereafter be reclassified or changed.

“Common
Stock Equivalents” means any securities of the Company or the Subsidiaries which would entitle the holder thereof to acquire
at any time Common Stock, including, without limitation, any debt, preferred stock, right, option, warrant or other instrument that is
at any time convertible into or exercisable or exchangeable for, or otherwise entitles the holder thereof to receive, Common Stock.

“Company
Counsel” means Ballard Spahr, with offices located at 1735 Market Street, 51st Floor, Philadelphia, Pennsylvania
19103-7599.

“Conversion
Price” shall have the meaning ascribed to such term in the Certificate of Designation.

“Conversion
Shares” means, collectively, the shares of Common Stock issuable upon conversion of the shares of Preferred Stock in accordance
with the terms hereof.

 

“Disclosure
Schedules” means the Disclosure Schedules of the Company delivered concurrently herewith.

 

    	2  

    	 

    

“Disclosure
Time” means, (i) if this Agreement is signed on a day that is not a Trading Day or after 9:00 a.m. (New York City time) and
before midnight (New York City time) on any Trading Day, 9:01 a.m. (New York City time) on the Trading Day immediately following the date
hereof, unless otherwise instructed as to an earlier time by the Placement Agent, and (ii) if this Agreement is signed between midnight
(New York City time) and 9:00 a.m. (New York City time) on any Trading Day, no later than 9:01 a.m. (New York City time) on the date hereof,
unless otherwise instructed as to an earlier time by the Placement Agent.

 

“EGS”
means Ellenoff Grossman & Schole LLP, with offices located at 1345 Avenue of the Americas, New York, New York 10105-0302.

“Escrow
Agent” means Continental Stock Transfer & Trust Company, with offices at 1 State Street, New York, New York 10004.

“Escrow
Agreement” means the escrow agreement entered into prior to the date hereof, by and among the Company, the Escrow Agent and
the Placement Agent pursuant to which the Purchasers shall deposit Subscription Amounts with the Escrow Agent to be applied to the transactions
contemplated hereunder.

“Evaluation
Date” shall have the meaning ascribed to such term in Section 3.1(s).

“Exchange Act”
means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder.

 

“Exempt
Issuance” means the issuance of (a) shares of Common Stock, restricted stock or restricted stock units or options to employees,
officers or directors of the Company pursuant to any stock or option plan duly adopted for such purpose, by a majority of the non-employee
members of the Board of Directors or a majority of the members of a committee of non-employee directors established for such purpose for
services rendered to the Company, (b) warrants to the Placement Agent in connection with the transactions pursuant to this Agreement and
any securities upon exercise of warrants to the Placement Agent, securities upon the exercise or exchange of or conversion of any Securities
issued hereunder and/or other securities exercisable or exchangeable for or convertible into shares of Common Stock issued and outstanding
on the date of this Agreement, provided that such securities have not been amended since the date of this Agreement to increase the number
of such securities or to decrease the exercise price, exchange price or conversion price of such securities (other than in connection
with stock splits or combinations) or to extend the term of such securities, and (c) securities issued pursuant to acquisitions or strategic
transactions approved by a majority of the disinterested directors of the Company, provided that such securities are issued as “restricted
securities” (as defined in Rule 144) and carry no registration rights that require or permit the filing of any registration statement
in connection therewith during the prohibition period in Section 4.13(a) herein, and, provided that any such issuance shall only be to
a Person (or to the equityholders of a Person) which is, itself or through its subsidiaries, an operating company or an owner of an asset
in a business synergistic with the business of the Company and shall provide to the Company additional benefits in addition to the investment
of funds, but shall not include a transaction in which the Company is issuing securities primarily for the purpose of raising capital
or to an entity whose primary business is investing in securities.

    	3  

    	 

    

“FCPA”
means the Foreign Corrupt Practices Act of 1977, as amended.

“FDA”
shall have the meaning ascribed to such term in Section 3.1(hh).

“FDCA”
shall have the meaning ascribed to such term in Section 3.1(hh).

“GAAP”
shall have the meaning ascribed to such term in Section 3.1(h).

“Indebtedness”
shall have the meaning ascribed to such term in Section 3.1(aa).

“Intellectual
Property Rights” shall have the meaning ascribed to such term in Section 3.1(p).

“Liens”
means a lien, charge, pledge, security interest, encumbrance, right of first refusal, preemptive right or other restriction.

“Material
Adverse Effect” shall have the meaning assigned to such term in Section 3.1(b).

“Material
Permits” shall have the meaning ascribed to such term in Section 3.1(n).

“Maximum
Rate” shall have the meaning ascribed to such term in Section 5.17.

“Person”
means an individual or corporation, partnership, trust, incorporated or unincorporated association, joint venture, limited liability company,
joint stock company, government (or an agency or subdivision thereof) or other entity of any kind.

“Pharmaceutical
Product” shall have the meaning ascribed to such term in Section 3.1(hh).

“Placement
Agent” means H.C. Wainwright & Co., LLC.

“Preferred
Stock” means up to 150,000 shares of the Company’s Series B Convertible Preferred Stock issued hereunder having the rights,
preferences and privileges set forth in the Certificate of Designation.

“Proceeding”
means an action, claim, suit, investigation or proceeding (including, without limitation, an informal investigation or partial proceeding,
such as a deposition), whether commenced or threatened.

“Prospectus”
means the prospectus contained in the Registration Statement at the time the Registration Statement became effective, as amended or supplemented
prior to the date hereof.

    	4  

    	 

    

“Prospectus
Supplement” means the supplement to the Prospectus complying with Rule 424(b) of the Securities Act that is filed with the Commission
and delivered by the Company to each Purchaser at the Closing.

“Purchaser
Party” shall have the meaning ascribed to such term in Section 4.10.

“Registration
Statement” means the effective registration statement with the Commission File No. 333-258646
which registers the sale of the Preferred Stock, Warrants and Underlying Shares.

“Required
Approvals” shall have the meaning ascribed to such term in Section 3.1(e).

“Required
Minimum” means, as of any date, the maximum aggregate number of shares of Common Stock then issued or potentially issuable in
the future pursuant to the Transaction Documents, including any Underlying Shares issuable upon exercise in full of all Warrants or conversion
in full of all shares of Preferred Stock, ignoring any conversion or exercise limits set forth therein.

“Rule 144”
means Rule 144 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended or interpreted from time to time,
or any similar rule or regulation hereafter adopted by the Commission having substantially the same purpose and effect as such Rule.

“Rule 424”
means Rule 424 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended or interpreted from time to time,
or any similar rule or regulation hereafter adopted by the Commission having substantially the same purpose and effect as such Rule.

 

“SEC Reports”
shall have the meaning ascribed to such term in Section 3.1(h).

“Securities”
means the Preferred Stock, the Warrants, the Warrant Shares and the Underlying Shares.

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

“Short Sales”
means all “short sales” as defined in Rule 200 of Regulation SHO under the Exchange Act (but shall not be deemed to include
locating and/or borrowing shares of Common Stock). 

“Stated
Value” means $100 per share of Preferred Stock.

“Subscription
Amount” means, as to each Purchaser, the aggregate amount to be paid for the Preferred Stock and Warrants purchased hereunder
as specified below such Purchaser’s name on the signature page of this Agreement and next to the heading “Subscription Amount,”
in United States dollars and in immediately available funds.

    	5  

    	 

    

“Subsidiary”
means any subsidiary of the Company as set forth on Schedule 3.1(a) and shall, where applicable, also include any direct or indirect
subsidiary of the Company formed or acquired after the date hereof.

“Trading
Day” means a day on which the principal Trading Market is open for trading.

“Trading
Market” means any of the following markets or exchanges on which the Common Stock is listed or quoted for trading on the date
in question: the NYSE American, the Nasdaq Capital Market, the Nasdaq Global Market, the Nasdaq Global Select Market or the New York Stock
Exchange (or any successors to any of the foregoing).

“Transaction
Documents” means this Agreement, the Certificate of Designation, the Warrants, the Escrow Agreement, all exhibits and schedules
thereto and hereto and any other documents or agreements executed in connection with the transactions contemplated hereunder.

“Transfer
Agent” means Philadelphia Stock Transfer, Inc., the current transfer agent of the Company, with a mailing address of 2320 Haverford
Road, Suite 230, Ardmore, PA 19003, and any successor transfer agent of the Company.

“Underlying
Shares” means the Conversion Shares and the Warrant Shares.

“Variable
Rate Transaction” shall have the meaning ascribed to such term in Section 4.13(b).

“Voting
Amendment” means the amendment to the Company’s certificate of incorporation that reduces the voting power required to
amend the Company’s certificate of incorporation to a majority of the outstanding voting power of the Corporation or such lower
amounts as determined by the Board of Directors and permitted by applicable law.

“Voting
Amendment Approval” means approval of the Voting Amendment by the stockholders of the Company.

“Warrants”
means, collectively, the Common Stock purchase warrants delivered to the Purchasers at the Closing in accordance with Section 2.2(a) hereof,
which Warrants shall be exercisable on or after the later of the Authorized Share Increase Date and the date that is six (6) months following
the date of issuance and have a term of exercise equal to five (5) years from the initial exercise date, in the form of Exhibit C
attached hereto.

“Warrant
Shares” means the shares of Common Stock issuable upon exercise of the Warrants.

    	6  

    	 

    

ARTICLE II. 

PURCHASE AND SALE

2.1           
Closing. On the Closing Date, upon the terms and subject to the conditions set forth herein,
substantially concurrent with the execution and delivery of this Agreement by the parties hereto, the Company agrees to sell, and the
Purchasers, severally and not jointly, agree to purchase, up to an aggregate of $15,000,000 of shares of Preferred Stock with an aggregate
Stated Value for each Purchaser equal to such Purchaser’s Subscription Amount as set forth on the signature page hereto executed
by such Purchaser, and Warrants as determined by pursuant to Section 2.2(a). The aggregate number of shares of Preferred Stock sold hereunder
shall be up to 150,000. Each Purchaser shall deliver to the Escrow Agent, via wire transfer or a certified check, immediately available
funds equal to its Subscription Amount, and the Company shall deliver to each Purchaser its respective shares of Preferred Stock and Warrants,
as determined pursuant to Section 2.2(a), and the Company and each Purchaser shall deliver the other items set forth in Section 2.2 deliverable
at the Closing. Upon satisfaction of the covenants and conditions set forth in Sections 2.2 and 2.3, the Closing shall occur at the offices
of EGS or such other location as the parties shall mutually agree. 

2.2           
Deliveries.

(a)            
On or prior to the Closing Date (except as indicated below), the Company shall deliver or cause to
be delivered to each Purchaser the following:

(i)    
  this Agreement duly executed by the Company; 

(ii)   
  a legal opinion of Company Counsel, substantially in the form of Exhibit B
attached hereto; 

(iii)  
a certificate evidencing a number of shares of Preferred Stock equal to such Purchaser’s Subscription
Amount divided by the Stated Value, registered in the name of such Purchaser, or, at the election of such Purchaser, evidence of the
issuance of such Purchaser’s shares of Preferred Stock hereunder as held in DRS book-entry form by the Transfer Agent and registered
in the name of such Purchaser, which evidence shall be reasonably satisfactory to such Purchaser, and evidence of the filing and acceptance
of the Certificate of Designation from the Secretary of State of Delaware;

(iv)    a
Warrant registered in the name of such Purchaser to purchase up to a number of shares of Common Stock equal to 100% of such Purchaser’s
Conversion Shares on the date hereof, with an exercise price equal to $2.05, subject to adjustment
therein;

(v)       the
Company shall have provided each Purchaser with the Escrow Agent’s wire instructions, on Company letterhead and executed by the
Chief Executive Officer or Chief Financial Officer; and

(vi)    the Prospectus and Prospectus Supplement (which may be delivered in accordance with Rule 172 under
the Securities Act).

    	7  

    	 

    

(b)            
On or prior to the Closing Date, each Purchaser shall deliver or cause to be delivered to the Company
or the Escrow Agent, as applicable, the following: 

(i)       
this Agreement duly executed by such Purchaser; and

(ii)        to the Escrow Agent, such Purchaser’s Subscription Amount by wire transfer to the account specified
in writing by the Company.

2.3           
Closing Conditions.

(a)              
The obligations of the Company hereunder in connection with the Closing are subject to the following
conditions being met:

(i)       
the accuracy in all material respects (or, to the extent representations or warranties are qualified
by materiality or Material Adverse Effect, in all respects) on the Closing Date of the representations and warranties of the Purchasers
contained herein (unless as of a specific date therein in which case they shall be accurate as of such date);

(ii)   
all obligations, covenants and agreements of each Purchaser required to be performed at or prior
to the Closing Date shall have been performed; and

(iii)   
the delivery by each Purchaser of the items set forth in Section 2.2(b) of this Agreement.

(b)              
The respective obligations of the Purchasers hereunder in connection with the Closing are subject
to the following conditions being met:

(i)       
the accuracy in all material respects (or, to the extent representations or warranties are qualified
by materiality or Material Adverse Effect, in all respects) when made and on the Closing Date of the representations and warranties of
the Company contained herein (unless as of a specific date therein in which case they shall be accurate as of such date);

(ii)   
all obligations, covenants and agreements of the Company required to be performed at or prior to
the Closing Date shall have been performed; 

(iii)   
the delivery by the Company of the items set forth in Section 2.2(a) of this Agreement; 

(iv)   
there shall have been no Material Adverse Effect with respect to the Company since the date hereof;
and

    	8  

    	 

    

(v)     
from the date hereof to the Closing Date, trading in the Common Stock shall not have been suspended
by the Commission or the Company’s principal Trading Market, and, at any time prior to the Closing Date, trading in securities generally
as reported by Bloomberg L.P. shall not have been suspended or limited, or minimum prices shall not have been established on securities
whose trades are reported by such service, or on any Trading Market, nor shall a banking moratorium have been declared either by the United
States or New York State authorities nor shall there have occurred any material outbreak or escalation of hostilities or other national
or international calamity of such magnitude in its effect on, or any material adverse change in, any financial market which, in each case,
in the reasonable judgment of such Purchaser, makes it impracticable or inadvisable to purchase the Securities at the Closing.

ARTICLE III. 

REPRESENTATIONS AND WARRANTIES

3.1           
Representations and Warranties of the Company. Except as set forth in the Disclosure Schedules,
which Disclosure Schedules shall be deemed a part hereof and shall qualify any representation or otherwise made herein to the extent of
the disclosure contained in the corresponding section of the Disclosure Schedules, the Company hereby makes the following representations
and warranties to each Purchaser:

(a)     
Subsidiaries. All of the direct and indirect subsidiaries of the Company are set forth on
Schedule 3.1(a). The Company owns, directly or indirectly, all of the capital stock or other equity interests of each Subsidiary
free and clear of any Liens, and all of the issued and outstanding shares of capital stock of each Subsidiary are validly issued and are
fully paid, non-assessable and free of preemptive and similar rights to subscribe for or purchase securities. If the Company has no subsidiaries,
all other references to the Subsidiaries or any of them in the Transaction Documents shall be disregarded.

(b)      Organization and Qualification. The Company and each of the Subsidiaries is an entity duly
incorporated or otherwise organized, validly existing and in good standing under the laws of the jurisdiction of its incorporation or
organization, with the requisite power and authority to own and use its properties and assets and to carry on its business as currently
conducted. Neither the Company nor any Subsidiary is in violation nor default of any of the provisions of its respective certificate or
articles of incorporation, bylaws or other organizational or charter documents. Each of the Company and the Subsidiaries is duly qualified
to conduct business and is in good standing as a foreign corporation or other entity in each jurisdiction in which the nature of the business
conducted or property owned by it makes such qualification necessary, except where the failure to be so qualified or in good standing,
as the case may be, could not have or reasonably be expected to result in: (i) a material adverse effect on the legality, validity or
enforceability of any Transaction Document, (ii) a material adverse effect on the results of operations, assets, business, prospects or
condition (financial or otherwise) of the Company and the Subsidiaries, taken as a whole, or (iii) a material adverse effect on the Company’s
ability to perform in any material respect on a timely basis its obligations under any Transaction Document (any of (i), (ii) or (iii),
a “Material Adverse Effect”) and no Proceeding has been instituted in any such jurisdiction revoking, limiting or curtailing
or seeking to revoke, limit or curtail such power and authority or qualification.

    	9  

    	 

    

(c)    
Authorization; Enforcement. The Company has the requisite corporate power and authority to
enter into and to consummate the transactions contemplated by this Agreement and each of the other Transaction Documents and otherwise
to carry out its obligations hereunder and thereunder. The execution and delivery of this Agreement and each of the other Transaction
Documents by the Company and the consummation by it of the transactions contemplated hereby and thereby have been duly authorized by all
necessary corporate action on the part of the Company and no further action is required by the Company, the Board of Directors or the
Company’s stockholders in connection herewith or therewith other than in connection with the Required Approvals. This Agreement
and each other Transaction Document to which it is a party has been (or upon delivery will have been) duly executed by the Company and,
when delivered in accordance with the terms hereof and thereof, will constitute the valid and binding obligation of the Company enforceable
against the Company in accordance with its terms, except: (i) as limited by general equitable principles and applicable bankruptcy, insolvency,
reorganization, moratorium and other laws of general application affecting enforcement of creditors’ rights generally, (ii) as limited
by laws relating to the availability of specific performance, injunctive relief or other equitable remedies and (iii) insofar as indemnification
and contribution provisions may be limited by applicable law.

(d)    
No Conflicts. The execution, delivery and performance by the Company of this Agreement and
the other Transaction Documents to which it is a party, the issuance and sale of the Securities and the consummation by it of the transactions
contemplated hereby and thereby do not and will not (i) conflict with or violate any provision of the Company’s or any Subsidiary’s
certificate or articles of incorporation, bylaws or other organizational or charter documents, or (ii) conflict with, or constitute a
default (or an event that with notice or lapse of time or both would become a default) under, result in the creation of any Lien upon
any of the properties or assets of the Company or any Subsidiary, or give to others any rights of termination, amendment, anti-dilution
or similar adjustments, acceleration or cancellation (with or without notice, lapse of time or both) of, any agreement, credit facility,
debt or other instrument (evidencing a Company or Subsidiary debt or otherwise) or other understanding to which the Company or any Subsidiary
is a party or by which any property or asset of the Company or any Subsidiary is bound or affected, or (iii) subject to the Required Approvals,
conflict with or result in a violation of any law, rule, regulation, order, judgment, injunction, decree or other restriction of any court
or governmental authority to which the Company or a Subsidiary is subject (including federal and state securities laws and regulations),
or by which any property or asset of the Company or a Subsidiary is bound or affected; except in the case of each of clauses (ii) and
(iii), such as could not have or reasonably be expected to result in a Material Adverse Effect.

    	10  

    	 

    

(e)     
Filings, Consents and Approvals. The Company is not required to obtain any consent, waiver,
authorization or order of, give any notice to, or make any filing or registration with, any court or other federal, state, local or other
governmental authority or other Person in connection with the execution, delivery and performance by the Company of the Transaction Documents,
other than: (i) the filings required pursuant to Section 4.6 of this Agreement, (ii) the filing with the Commission of the Prospectus
Supplement, (iii) the notice and/or application(s) to each applicable Trading Market for the issuance and sale of the Securities and the
listing of the Underlying Shares for trading thereon in the time and manner required thereby, (iv) such filings as are required to be
made under applicable state securities laws and (v) Authorized Share Approval (collectively, the “Required Approvals”).

(f)      
Issuance of the Securities; Registration. The Securities are duly authorized, or in the case
of the Conversion Shares and the Warrant Shares will be authorized on the Authorized Share Increase Date, and, when issued and paid for
in accordance with the applicable Transaction Documents, will be duly and validly issued, fully paid and nonassessable, free and clear
of all Liens imposed by the Company. The Underlying Shares, when issued in accordance with the terms of the Transaction Documents, will
be validly issued, fully paid and nonassessable, free and clear of all Liens imposed by the Company. Following receipt of the Authorized
Share Approval, the Company will have reserved from its duly authorized capital stock a number of shares of Common Stock for issuance
of the Underlying Shares at least equal to the Required Minimum on the date hereof. The Company has prepared and filed the Registration
Statement in conformity with the requirements of the Securities Act, which became effective on August 19, 2021 (the “Effective
Date”), including the Prospectus, and such amendments and supplements thereto as may have been required to the date of this
Agreement. The Registration Statement is effective under the Securities Act and no stop order preventing or suspending the effectiveness
of the Registration Statement or suspending or preventing the use of the Prospectus has been issued by the Commission and no proceedings
for that purpose have been instituted or, to the knowledge of the Company, are threatened by the Commission. The Company, if required
by the rules and regulations of the Commission, shall file the Prospectus with the Commission pursuant to Rule 424(b). At the time the
Registration Statement and any amendments thereto became effective, at the date of this Agreement and at the Closing Date, the Registration
Statement and any amendments thereto conformed and will conform in all material respects to the requirements of the Securities Act and
did not and will not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein
or necessary to make the statements therein not misleading; and the Prospectus and any amendments or supplements thereto, at the time
the Prospectus or any amendment or supplement thereto was issued and at the Closing Date, conformed and will conform in all material respects
to the requirements of the Securities Act and did not and will not contain an untrue statement of a material fact or omit to state a material
fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.
The Company was at the time of the filing of the Registration Statement eligible to use Form S-3. The Company is eligible to use Form
S-3 under the Securities Act and it meets the transaction requirements as set forth in General Instruction I.B.1 of Form S-3.

    	11  

    	 

    

(g)     
Capitalization. The capitalization of the Company as of the date hereof is as set forth on
Schedule 3.1(g), which Schedule 3.1(g) shall also include the number of shares of Common Stock owned beneficially, and of
record, by Affiliates of the Company as of the date hereof. The Company has not issued any capital stock since its most recently filed
periodic report under the Exchange Act, other than (i) pursuant to the exercise of employee stock options under the Company’s stock
option plans, (ii) the issuance of shares of Common Stock to employees pursuant to the Company’s employee stock purchase plans,
(iii) pursuant to the conversion and/or exercise of Common Stock Equivalents outstanding as of the date of the most recently filed periodic
report under the Exchange Act and (iv) pursuant to the Amended and Restated At The Market Offering Agreement, dated November 13, 2020,
by and among the Company, the Placement Agent and BTIG, LLC. No Person has any right of first refusal, preemptive right, right of participation,
or any similar right to participate in the transactions contemplated by the Transaction Documents. Except as a result of the purchase
and sale of the Securities or as set forth on Schedule 3.1(g), there are no outstanding options, warrants, scrip rights to subscribe
to, calls or commitments of any character whatsoever relating to, or securities, rights or obligations convertible into or exercisable
or exchangeable for, or giving any Person any right to subscribe for or acquire, any shares of Common Stock or the capital stock of any
Subsidiary, or contracts, commitments, understandings or arrangements by which the Company or any Subsidiary is or may become bound to
issue additional shares of Common Stock or Common Stock Equivalents or capital stock of any Subsidiary. The issuance and sale of the Securities
will not obligate the Company or any Subsidiary to issue shares of Common Stock or other securities to any Person (other than the Purchasers).
There are no outstanding securities or instruments of the Company or any Subsidiary with any provision that adjusts the exercise, conversion,
exchange or reset price of such security or instrument upon an issuance of securities by the Company or any Subsidiary. There are no outstanding
securities or instruments of the Company or any Subsidiary that contain any redemption or similar provisions, and there are no contracts,
commitments, understandings or arrangements by which the Company or any Subsidiary is or may become bound to redeem a security of the
Company or such Subsidiary. The Company does not have any stock appreciation rights or “phantom stock” plans or agreements
or any similar plan or agreement. All of the outstanding shares of capital stock of the Company are duly authorized, validly issued, fully
paid and nonassessable, have been issued in compliance with all federal and state securities laws, and none of such outstanding shares
was issued in violation of any preemptive rights or similar rights to subscribe for or purchase securities. Except for the Authorized
Share Approval, no further approval or authorization of any stockholder, the Board of Directors or others is required for the issuance
and sale of the Securities. There are no stockholders agreements, voting agreements or other similar agreements with respect to the Company’s
capital stock to which the Company is a party or, to the knowledge of the Company, between or among any of the Company’s stockholders.

    	12  

    	 

    

(h)      
SEC Reports; Financial Statements. The Company has filed all reports, schedules, forms, statements
and other documents required to be filed by the Company under the Securities Act and the Exchange Act, including pursuant to Section 13(a)
or 15(d) thereof, for the two years preceding the date hereof (or such shorter period as the Company was required by law or regulation
to file such material) (the foregoing materials, including the exhibits thereto and documents incorporated by reference therein, together
with the Prospectus and the Prospectus Supplement, being collectively referred to herein as the “SEC Reports”) on a
timely basis or has received a valid extension of such time of filing and has filed any such SEC Reports prior to the expiration of any
such extension. As of their respective dates, the SEC Reports complied in all material respects with the requirements of the Securities
Act and the Exchange Act, as applicable, and none of the SEC Reports, when filed, contained any untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the
circumstances under which they were made, not misleading. The Company has never been an issuer subject to Rule 144(i) under the Securities
Act. The financial statements of the Company included in the SEC Reports comply in all material respects with applicable accounting requirements
and the rules and regulations of the Commission with respect thereto as in effect at the time of filing. Such financial statements have
been prepared in accordance with United States generally accepted accounting principles applied on a consistent basis during the periods
involved (“GAAP”), except as may be otherwise specified in such financial statements or the notes thereto and except
that unaudited financial statements may not contain all footnotes required by GAAP, and fairly present in all material respects the financial
position of the Company and its consolidated Subsidiaries as of and for the dates thereof and the results of operations and cash flows
for the periods then ended, subject, in the case of unaudited statements, to normal, immaterial, year-end audit adjustments.

(i)        
Material Changes; Undisclosed Events, Liabilities or Developments. Since the date of the latest
audited financial statements included within the SEC Reports: (i) there has been no event, occurrence or development that has had or that
could reasonably be expected to result in a Material Adverse Effect, (ii) the Company has not incurred any liabilities (contingent or
otherwise) other than (A) trade payables and accrued expenses incurred in the ordinary course of business consistent with past practice
and (B) liabilities not required to be reflected in the Company’s financial statements pursuant to GAAP or disclosed in filings
made with the Commission, (iii) the Company has not altered its method of accounting, (iv) the Company has not declared or made any dividend
or distribution of cash or other property to its stockholders or purchased, redeemed or made any agreements to purchase or redeem any
shares of its capital stock and (v) the Company has not issued any equity securities to any officer, director or Affiliate, except pursuant
to existing Company stock option plans. The Company does not have pending before the Commission any request for confidential treatment
of information. Except for the issuance of the Securities contemplated by this Agreement, no event, liability, fact, circumstance, occurrence
or development has occurred or exists or is reasonably expected to occur or exist with respect to the Company or its Subsidiaries or their
respective businesses, prospects, properties, operations, assets or financial condition, that would be required to be disclosed by the
Company under applicable securities laws at the time this representation is made or deemed made that has not been publicly disclosed at
least 1 Trading Day prior to the date that this representation is made.

    	13  

    	 

    

(j)       
Litigation. There is no action, suit, inquiry, notice of violation, proceeding or investigation
pending or, to the knowledge of the Company, threatened against or affecting the Company, any Subsidiary or any of their respective properties
before or by any court, arbitrator, governmental or administrative agency or regulatory authority (federal, state, county, local or foreign)
(collectively, an “Action”). There is not Action that (i) adversely affects or challenges the legality, validity or
enforceability of any of the Transaction Documents or the Securities or (ii) could, if there were an unfavorable decision, have or reasonably
be expected to result in a Material Adverse Effect. Neither the Company nor any Subsidiary, nor any director or officer thereof, is or
has been the subject of any Action involving a claim of violation of or liability under federal or state securities laws or a claim of
breach of fiduciary duty. There has not been, and to the knowledge of the Company, there is not pending or contemplated, any investigation
by the Commission involving the Company or any current or former director or officer of the Company. The Commission has not issued any
stop order or other order suspending the effectiveness of any registration statement filed by the Company or any Subsidiary under the
Exchange Act or the Securities Act. 

(k)     Labor Relations. No labor dispute exists or, to the knowledge of the Company, is imminent
with respect to any of the employees of the Company, which could reasonably be expected to result in a Material Adverse Effect. None of
the Company’s or its Subsidiaries’ employees is a member of a union that relates to such employee’s relationship with
the Company or such Subsidiary, and neither the Company nor any of its Subsidiaries is a party to a collective bargaining agreement, and
the Company and its Subsidiaries believe that their relationships with their employees are good. To the knowledge of the Company, no executive
officer of the Company or any Subsidiary, is, or is now expected to be, in violation of any material term of any employment contract,
confidentiality, disclosure or proprietary information agreement or non-competition agreement, or any other contract or agreement or any
restrictive covenant in favor of any third party, and the continued employment of each such executive officer does not subject the Company
or any of its Subsidiaries to any liability with respect to any of the foregoing matters. The Company and its Subsidiaries are in compliance
with all U.S. federal, state, local and foreign laws and regulations relating to employment and employment practices, terms and conditions
of employment and wages and hours, except where the failure to be in compliance could not, individually or in the aggregate, reasonably
be expected to have a Material Adverse Effect.

    	14  

    	 

    

(l)       
Compliance. Neither the Company nor any Subsidiary: (i) is in default under or in violation
of (and no event has occurred that has not been waived that, with notice or lapse of time or both, would result in a default by the Company
or any Subsidiary under), nor has the Company or any Subsidiary received notice of a claim that it is in default under or that it is in
violation of, any indenture, loan or credit agreement or any other agreement or instrument to which it is a party or by which it or any
of its properties is bound (whether or not such default or violation has been waived), (ii) is in violation of any judgment, decree or
order of any court, arbitrator or other governmental authority or (iii) is or has been in violation of any statute, rule, ordinance or
regulation of any governmental authority, including without limitation all foreign, federal, state and local laws relating to taxes, environmental
protection, occupational health and safety, product quality and safety and employment and labor matters, except in each case as could
not have or reasonably be expected to result in a Material Adverse Effect.

(m)  
Environmental Laws.The Company and its Subsidiaries (i) are in compliance with all federal,
state, local and foreign laws relating to pollution or protection of human health or the environment (including ambient air, surface water,
groundwater, land surface or subsurface strata), including laws relating to emissions, discharges, releases or threatened releases of
chemicals, pollutants, contaminants, or toxic or hazardous substances or wastes (collectively, “Hazardous Materials”)
into the environment, or otherwise relating to the manufacture, processing, distribution, use, treatment, storage, disposal, transport
or handling of Hazardous Materials, as well as all authorizations, codes, decrees, demands, or demand letters, injunctions, judgments,
licenses, notices or notice letters, orders, permits, plans or regulations, issued, entered, promulgated or approved thereunder (“Environmental
Laws”); (ii) have received all permits licenses or other approvals required of them under applicable Environmental Laws to conduct
their respective businesses; and (iii) are in compliance with all terms and conditions of any such permit, license or approval where in
each clause (i), (ii) and (iii), the failure to so comply could be reasonably expected to have, individually or in the aggregate, a Material
Adverse Effect.

(n)  
Regulatory Permits. The Company and the Subsidiaries possess all certificates, authorizations
and permits issued by the appropriate federal, state, local or foreign regulatory authorities necessary to conduct their respective businesses
as described in the SEC Reports, except where the failure to possess such permits could not reasonably be expected to result in a Material
Adverse Effect (“Material Permits”), and neither the Company nor any Subsidiary has received any notice of proceedings
relating to the revocation or modification of any Material Permit.

(o)    
Title to Assets. The Company and the Subsidiaries have good and marketable title in fee simple
to all real property owned by them and good and marketable title in all personal property owned by them that is material to the business
of the Company and the Subsidiaries, in each case free and clear of all Liens, except for (i) Liens as do not materially affect the value
of such property and do not materially interfere with the use made and proposed to be made of such property by the Company and the Subsidiaries
and (ii) Liens for the payment of federal, state or other taxes, for which appropriate reserves have been made therefor in accordance
with GAAP and, the payment of which is neither delinquent nor subject to penalties. Any real property and facilities held under lease
by the Company and the Subsidiaries are held by them under valid, subsisting and enforceable leases with which the Company and the Subsidiaries
are in compliance.

    	15  

    	 

    

(p)     
Intellectual Property. The Company and the Subsidiaries have, or have rights to use, all patents,
patent applications, trademarks, trademark applications, service marks, trade names, trade secrets, inventions, copyrights, licenses and
other intellectual property rights and similar rights as described in the SEC Reports as necessary or required for use in connection with
their respective businesses and which the failure to so have could have a Material Adverse Effect (collectively, the “Intellectual
Property Rights”). None of, and neither the Company nor any Subsidiary has received a notice (written or otherwise) that any
of, the Intellectual Property Rights has expired, terminated or been abandoned, or is expected to expire or terminate or be abandoned,
within two (2) years from the date of this Agreement. Neither the Company nor any Subsidiary has received, since the date of the latest
audited financial statements included within the SEC Reports, a written notice of a claim or otherwise has any knowledge that the Intellectual
Property Rights violate or infringe upon the rights of any Person, except as could not have or reasonably be expected to not have a Material
Adverse Effect. To the knowledge of the Company, all such Intellectual Property Rights are enforceable and there is no existing infringement
by another Person of any of the Intellectual Property Rights. The Company and its Subsidiaries have taken reasonable security measures
to protect the secrecy, confidentiality and value of all of their intellectual properties, except where failure to do so could not, individually
or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(q)   
Insurance. The Company and the Subsidiaries are insured by insurers of recognized financial
responsibility against such losses and risks and in such amounts as are prudent and customary in the businesses in which the Company and
the Subsidiaries are engaged, including, but not limited to, directors and officers insurance coverage at least equal to the aggregate
Subscription Amount. Neither the Company nor any Subsidiary has been notified that it will not be able to renew its existing insurance
coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business
without a significant increase in cost.

(r)    
Transactions With Affiliates and Employees. None of the officers or directors of the Company
or any Subsidiary and, to the knowledge of the Company, none of the employees of the Company or any Subsidiary is presently a party to
any transaction with the Company or any Subsidiary (other than for services as employees, officers and directors), including any contract,
agreement or other arrangement providing for the furnishing of services to or by, providing for rental of real or personal property to
or from, providing for the borrowing of money from or lending of money to or otherwise requiring payments to or from any officer, director
or such employee or, to the knowledge of the Company, any entity in which any officer, director, or any such employee has a substantial
interest or is an officer, director, trustee, stockholder, member or partner, in each case in excess of $120,000 other than for: (i) payment
of salary or consulting fees for services rendered, (ii) reimbursement for expenses incurred on behalf of the Company and (iii) other
employee benefits, including stock option agreements under any stock option plan of the Company.

    	16  

    	 

    

(s)      
Sarbanes-Oxley; Internal Accounting Controls. Except as set forth in the SEC Reports, the
Company and the Subsidiaries are in compliance with any and all applicable requirements of the Sarbanes-Oxley Act of 2002 that are effective
as of the date hereof, and any and all applicable rules and regulations promulgated by the Commission thereunder that are effective as
of the date hereof and as of the Closing Date. The Company and the Subsidiaries maintain a system of internal accounting controls sufficient
to provide reasonable assurance that: (i) transactions are executed in accordance with management’s general or specific authorizations,
(ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with GAAP and to maintain asset
accountability, (iii) access to assets is permitted only in accordance with management’s general or specific authorization, and
(iv) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken
with respect to any differences. The Company and the Subsidiaries have established disclosure controls and procedures (as defined in Exchange
Act Rules 13a-15(e) and 15d-15(e)) for the Company and the Subsidiaries and designed such disclosure controls and procedures to ensure
that information required to be disclosed by the Company in the reports it files or submits under the Exchange Act is recorded, processed,
summarized and reported, within the time periods specified in the Commission’s rules and forms. The Company’s certifying officers
have evaluated the effectiveness of the disclosure controls and procedures of the Company and the Subsidiaries as of the end of the period
covered by the most recently filed periodic report under the Exchange Act (such date, the “Evaluation Date”). The Company
presented in its most recently filed periodic report under the Exchange Act the conclusions of the certifying officers about the effectiveness
of the disclosure controls and procedures based on their evaluations as of the Evaluation Date. Since the Evaluation Date, there have
been no changes in the internal control over financial reporting (as such term is defined in the Exchange Act) of the Company and its
Subsidiaries that have materially affected, or is reasonably likely to materially affect, the internal control over financial reporting
of the Company and its Subsidiaries.

(t)      
Certain Fees. Except as set forth in the Prospectus Supplement, no brokerage or finder’s
fees or commissions are or will be payable by the Company or any Subsidiary to any broker, financial advisor or consultant, finder, placement
agent, investment banker, bank or other Person with respect to the transactions contemplated by the Transaction Documents. The Purchasers
shall have no obligation with respect to any fees or with respect to any claims made by or on behalf of other Persons for fees of a type
contemplated in this Section that may be due in connection with the transactions contemplated by the Transaction Documents. 

(u)     
Investment Company. The Company is not, and is not an Affiliate of, and immediately after
receipt of payment for the Securities, will not be or be an Affiliate of, an “investment company” within the meaning of the
Investment Company Act of 1940, as amended. The Company shall conduct its business in a manner so that it will not become an “investment
company” subject to registration under the Investment Company Act of 1940, as amended.

    	17  

    	 

    

(v)      
Registration Rights. No Person has any right to cause the Company or any Subsidiary to effect
the registration under the Securities Act of any securities of the Company or any Subsidiary, which have not been satisfied or waived.

(w)  
Listing and Maintenance Requirements. The Common Stock is registered pursuant to Section
12(b) or 12(g) of the Exchange Act, and the Company has taken no action designed to, or which to its knowledge is likely to have the
effect of, terminating the registration of the Common Stock under the Exchange Act nor has the Company received any notification that
the Commission is contemplating terminating such registration. The Company has not, in the 12 months preceding the date hereof, received
notice from any Trading Market on which the Common Stock is or has been listed or quoted to the effect that the Company is not in compliance
with the listing or maintenance requirements of such Trading Market. The Company is, and has no reason to believe that it will not in
the foreseeable future continue to be, in compliance with all such listing and maintenance requirements. The Common Stock is currently
eligible for electronic transfer through the Depository Trust Company or another established clearing corporation and the Company is
current in payment of the fees to the Depository Trust Company (or such other established clearing corporation) in connection with such
electronic transfer.

(x)    
Application of Takeover Protections. The Company and the Board of Directors have taken all
necessary action, if any, in order to render inapplicable any control share acquisition, business combination, poison pill (including
any distribution under a rights agreement) or other similar anti-takeover provision under the Company’s certificate of incorporation
(or similar charter documents) or the laws of its state of incorporation that is or could become applicable to the Purchasers as a result
of the Purchasers and the Company fulfilling their obligations or exercising their rights under the Transaction Documents, including without
limitation as a result of the Company’s issuance of the Securities and the Purchasers’ ownership of the Securities.

(y)    
Disclosure. Except with respect to the material terms and conditions of the transactions contemplated
by the Transaction Documents, the Company confirms that neither it nor any other Person acting on its behalf has provided any of the Purchasers
or their agents or counsel with any information that it believes constitutes or might constitute material, non-public information which
is not otherwise disclosed in the Prospectus Supplement. The Company understands and confirms that the Purchasers will rely on the foregoing
representation in effecting transactions in securities of the Company. All of the disclosure furnished by or on behalf of the Company
to the Purchasers regarding the Company and its Subsidiaries, their respective businesses and the transactions contemplated hereby, including
the Disclosure Schedules to this Agreement, is true and correct and does not contain any untrue statement of a material fact or omit to
state any material fact necessary in order to make the statements made therein, in the light of the circumstances under which they were
made, not misleading. The press releases disseminated by the Company during the twelve months preceding the date of this Agreement taken
as a whole do not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary
in order to make the statements therein, in the light of the circumstances under which they were made and when made, not misleading. The
Company acknowledges and agrees that no Purchaser makes or has made any representations or warranties with respect to the transactions
contemplated hereby other than those specifically set forth in Section 3.2 hereof.

    	18  

    	 

    

(z)    
No Integrated Offering. Assuming the accuracy of the Purchasers’ representations and
warranties set forth in Section 3.2, neither the Company, nor any of its Affiliates, nor any Person acting on its or their behalf has,
directly or indirectly, made any offers or sales of any security or solicited any offers to buy any security, under circumstances that
would cause this offering of the Securities to be integrated with prior offerings by the Company for purposes of any applicable shareholder
approval provisions of any Trading Market on which any of the securities of the Company are listed or designated.

(aa)  
Solvency. Based on the consolidated financial condition of the Company as of the Closing
Date, after giving effect to the receipt by the Company of the proceeds from the sale of the Securities hereunder: (i) the fair saleable
value of the Company’s assets exceeds the amount that will be required to be paid on or in respect of the Company’s existing
debts and other liabilities (including known contingent liabilities) as they mature, (ii) the Company’s assets do not constitute
unreasonably small capital to carry on its business as now conducted and as proposed to be conducted including its capital needs taking
into account the particular capital requirements of the business conducted by the Company, consolidated and projected capital requirements
and capital availability thereof, and (iii) the current cash flow of the Company, together with the proceeds the Company would receive,
were it to liquidate all of its assets, after taking into account all anticipated uses of the cash, would be sufficient to pay all amounts
on or in respect of its liabilities when such amounts are required to be paid. The Company does not intend to incur debts beyond its
ability to pay such debts as they mature (taking into account the timing and amounts of cash to be payable on or in respect of its debt).
The Company has no knowledge of any facts or circumstances which lead it to believe that it will file for reorganization or liquidation
under the bankruptcy or reorganization laws of any jurisdiction within one year from the Closing Date. Schedule 3.1(aa) sets forth
as of the date hereof all outstanding secured and unsecured Indebtedness of the Company or any Subsidiary, or for which the Company or
any Subsidiary has commitments. For the purposes of this Agreement, “Indebtedness” means (x) any liabilities for borrowed
money or amounts owed in excess of $50,000 (other than trade accounts payable incurred in the ordinary course of business), (y) all guaranties,
endorsements and other contingent obligations in respect of indebtedness of others, whether or not the same are or should be reflected
in the Company’s consolidated balance sheet (or the notes thereto), except guaranties by endorsement of negotiable instruments
for deposit or collection or similar transactions in the ordinary course of business; and (z) the present value of any lease payments
in excess of $50,000 due under leases required to be capitalized in accordance with GAAP. Neither the Company nor any Subsidiary is in
default with respect to any Indebtedness.

    	19  

    	 

    

(bb)   
Tax Status.  Except for matters that would not, individually or in the aggregate, have
or reasonably be expected to result in a Material Adverse Effect, the Company and its Subsidiaries each (i) has made or filed all United
States federal, state and local income and all foreign income and franchise tax returns, reports and declarations required by any jurisdiction
to which it is subject, (ii) has paid all taxes and other governmental assessments and charges that are material in amount, shown or determined
to be due on such returns, reports and declarations and (iii) has set aside on its books provision reasonably adequate for the payment
of all material taxes for periods subsequent to the periods to which such returns, reports or declarations apply. There are no unpaid
taxes in any material amount claimed to be due by the taxing authority of any jurisdiction, and the officers of the Company or of any
Subsidiary know of no basis for any such claim.

(cc)     Foreign Corrupt Practices. Neither the Company nor any Subsidiary, nor to the knowledge of
the Company or any Subsidiary, any agent or other person acting on behalf of the Company or any Subsidiary, has: (i) directly or indirectly,
used any funds for unlawful contributions, gifts, entertainment or other unlawful expenses related to foreign or domestic political activity,
(ii) made any unlawful payment to foreign or domestic government officials or employees or to any foreign or domestic political parties
or campaigns from corporate funds, (iii) failed to disclose fully any contribution made by the Company or any Subsidiary (or made by any
person acting on its behalf of which the Company is aware) which is in violation of law or (iv) violated in any material respect any provision
of FCPA.

(dd) 
Accountants. The Company’s accounting firm is set forth on Schedule 3.1(dd)
of the Disclosure Schedules. To the knowledge and belief of the Company, such accounting firm: (i) is a registered public accounting
firm as required by the Exchange Act and (ii) shall express its opinion with respect to the financial statements to be included in the
Company’s Annual Report for the fiscal year ending December 31, 2021.

(ee)         
Acknowledgment Regarding Purchasers’ Purchase of Securities. The Company acknowledges
and agrees that each of the Purchasers is acting solely in the capacity of an arm’s length purchaser with respect to the Transaction
Documents and the transactions contemplated thereby. The Company further acknowledges that no Purchaser is acting as a financial advisor
or fiduciary of the Company (or in any similar capacity) with respect to the Transaction Documents and the transactions contemplated thereby
and any advice given by any Purchaser or any of their respective representatives or agents in connection with the Transaction Documents
and the transactions contemplated thereby is merely incidental to the Purchasers’ purchase of the Securities. The Company further
represents to each Purchaser that the Company’s decision to enter into this Agreement and the other Transaction Documents has been
based solely on the independent evaluation of the transactions contemplated hereby by the Company and its representatives.

    	20  

    	 

    

(ff)      
Acknowledgment Regarding Purchaser’s Trading Activity. Anything
in this Agreement or elsewhere herein to the contrary notwithstanding (except for Sections 3.2(f) and 4.15 hereof), it is understood and
acknowledged by the Company that: (i) none of the Purchasers has been asked by the Company to agree, nor has any Purchaser agreed, to
desist from purchasing or selling, long and/or short, securities of the Company, or “derivative” securities based on securities
issued by the Company or to hold the Securities for any specified term, (ii) past or future open market or other transactions by any Purchaser,
specifically including, without limitation, Short Sales or “derivative” transactions, before or after the closing of this
or future private placement transactions, may negatively impact the market price of the Company’s publicly-traded securities, (iii)
any Purchaser, and counter-parties in “derivative” transactions to which any such Purchaser is a party, directly or indirectly,
may presently have a “short” position in the Common Stock and (iv) each Purchaser shall not be deemed to have any affiliation
with or control over any arm’s length counter-party in any “derivative” transaction. The
Company further understands and acknowledges that (y) one or more Purchasers may engage in hedging activities at various times during
the period that the Securities are outstanding, including, without limitation, during the periods that the value of the Underlying Shares
deliverable with respect to Securities are being determined, and (z) such hedging activities (if any) could reduce the value of the existing
stockholders' equity interests in the Company at and after the time that the hedging activities are being conducted.  The Company
acknowledges that such aforementioned hedging activities do not constitute a breach of any of the Transaction Documents.

(gg)   
Regulation M Compliance.  The Company has not, and to its knowledge no one acting on
its behalf has, (i) taken, directly or indirectly, any action designed to cause or to result in the stabilization or manipulation of the
price of any security of the Company to facilitate the sale or resale of any of the Securities, (ii) sold, bid for, purchased, or paid
any compensation for soliciting purchases of, any of the Securities, or (iii) paid or agreed to pay to any Person any compensation for
soliciting another to purchase any other securities of the Company, other than, in the case of clauses (ii) and (iii), compensation paid
to the Company’s placement agent in connection with the placement of the Securities.

    	21  

    	 

    

(hh)  
FDA. As to each product subject to the jurisdiction of the U.S. Food and Drug Administration
(“FDA”) under the Federal Food, Drug and Cosmetic Act, as amended, and the regulations thereunder (“FDCA”)
that is manufactured, packaged, labeled, tested, distributed, sold, and/or marketed by the Company or any of its Subsidiaries (each such
product, a “Pharmaceutical Product”), such Pharmaceutical Product is being manufactured, packaged, labeled, tested,
distributed, sold and/or marketed by the Company in compliance with all applicable requirements under FDCA and similar laws, rules and
regulations relating to registration, investigational use, premarket clearance, licensure, or application approval, good manufacturing
practices, good laboratory practices, good clinical practices, product listing, quotas, labeling, advertising, record keeping and filing
of reports, except where the failure to be in compliance would not have a Material Adverse Effect. There is no pending, completed or,
to the Company's knowledge, threatened, action (including any lawsuit, arbitration, or legal or administrative or regulatory proceeding,
charge, complaint, or investigation) against the Company or any of its Subsidiaries, and none of the Company or any of its Subsidiaries
has received any notice, warning letter or other communication from the FDA or any other governmental entity, which (i) contests the premarket
clearance, licensure, registration, or approval of, the uses of, the distribution of, the manufacturing or packaging of, the testing of,
the sale of, or the labeling and promotion of any Pharmaceutical Product, (ii) withdraws its approval of, requests the recall, suspension,
or seizure of, or withdraws or orders the withdrawal of advertising or sales promotional materials relating to, any Pharmaceutical Product,
(iii) imposes a clinical hold on any clinical investigation by the Company or any of its Subsidiaries, (iv) enjoins production at any
facility of the Company or any of its Subsidiaries, (v) enters or proposes to enter into a consent decree of permanent injunction with
the Company or any of its Subsidiaries, or (vi) otherwise alleges any violation of any laws, rules or regulations by the Company or any
of its Subsidiaries, and which, either individually or in the aggregate, would have a Material Adverse Effect. The
properties, business and operations of the Company have been and are being conducted in all material respects in accordance with all applicable
laws, rules and regulations of the FDA.  The Company has not been informed by the FDA that the FDA will prohibit the marketing, sale,
license or use in the United States of any product proposed to be developed, produced or marketed by the Company nor has the FDA expressed
any concern as to approving or clearing for marketing any product being developed or proposed to be developed by the Company.

(ii)       
Stock Option Plans. Each stock option granted by the Company under the Company’s stock
option plan was granted (i) in accordance with the terms of the Company’s stock option plan and (ii) with an exercise price at least
equal to the fair market value of the Common Stock on the date such stock option would be considered granted under GAAP and applicable
law. No stock option granted under the Company’s stock option plan has been backdated. The Company has not knowingly granted, and
there is no and has been no Company policy or practice to knowingly grant, stock options prior to, or otherwise knowingly coordinate the
grant of stock options with, the release or other public announcement of material information regarding the Company or its Subsidiaries
or their financial results or prospects.

    	22  

    	 

    

(jj)       
Cybersecurity.  (i)(x) There has been no security breach or other compromise of or relating
to any of the Company’s or any Subsidiary’s information technology and computer systems, networks, hardware, software, data
(including the data of its respective customers, employees, suppliers, vendors and any third party data maintained by or on behalf of
it), equipment or technology (collectively, “IT Systems and Data”) and (y) the Company and the Subsidiaries have not
been notified of, and has no knowledge of any event or condition that would reasonably be expected to result in, any security breach or
other compromise to its IT Systems and Data; (ii) the Company and the Subsidiaries are presently in compliance with all applicable laws
or statutes and all judgments, orders, rules and regulations of any court or arbitrator or governmental or regulatory authority, internal
policies and contractual obligations relating to the privacy and security of IT Systems and Data and to the protection of such IT Systems
and Data from unauthorized use, access, misappropriation or modification, except as would not, individually or in the aggregate, have
a Material Adverse Effect; (iii) the Company and the Subsidiaries have implemented and maintained commercially reasonable safeguards
to maintain and protect its material confidential information and the integrity, continuous operation, redundancy and security of all
IT Systems and Data; and (iv) the Company and the Subsidiaries have implemented backup and disaster recovery technology consistent with
industry standards and practices.

(kk)    
Office of Foreign Assets Control. Neither the Company nor any Subsidiary nor, to the Company's
knowledge, any director, officer, agent, employee or affiliate of the Company or any Subsidiary is currently subject to any U.S. sanctions
administered by the Office of Foreign Assets Control of the U.S. Treasury Department (“OFAC”).

(ll)         
U.S. Real Property Holding Corporation. The Company is not and has never been a U.S. real
property holding corporation within the meaning of Section 897 of the Internal Revenue Code of 1986, as amended, and the Company shall
so certify upon Purchaser’s request.

(mm) 
Bank Holding Company Act. Neither the Company nor any of its Subsidiaries or Affiliates is
subject to the Bank Holding Company Act of 1956, as amended (the “BHCA”) and to regulation by the Board of Governors
of the Federal Reserve System (the “Federal Reserve”). Neither the Company nor any of its Subsidiaries or Affiliates
owns or controls, directly or indirectly, five percent (5%) or more of the outstanding shares of any class of voting securities or twenty-five
percent or more of the total equity of a bank or any entity that is subject to the BHCA and to regulation by the Federal Reserve. Neither
the Company nor any of its Subsidiaries or Affiliates exercises a controlling influence over the management or policies of a bank or any
entity that is subject to the BHCA and to regulation by the Federal Reserve.

(nn)     
Money Laundering. The operations of the Company and its Subsidiaries are and have been conducted
at all times in compliance with applicable financial record-keeping and reporting requirements of the Currency and Foreign Transactions
Reporting Act of 1970, as amended, applicable money laundering statutes and applicable rules and regulations thereunder (collectively,
the “Money Laundering Laws”), and no Action or Proceeding by or before any court or governmental agency, authority
or body or any arbitrator involving the Company or any Subsidiary with respect to the Money Laundering Laws is pending or, to the knowledge
of the Company or any Subsidiary, threatened.

3.2           
Representations and Warranties of the Purchasers. Each Purchaser, for itself and for no other
Purchaser, hereby represents and warrants as of the date hereof and as of the Closing Date to the Company as follows (unless as of a specific
date therein, in which case they shall be accurate as of such date):

    	23  

    	 

    

(a)    Organization; Authority. Such Purchaser is either an individual or an entity duly incorporated
or formed, validly existing and in good standing under the laws of the jurisdiction of its incorporation or formation with full right,
corporate, partnership, limited liability company or similar power and authority to enter into and to consummate the transactions contemplated
by the Transaction Documents and otherwise to carry out its obligations hereunder and thereunder. The execution and delivery of the Transaction
Documents and performance by such Purchaser of the transactions contemplated by the Transaction Documents have been duly authorized by
all necessary corporate, partnership, limited liability company or similar action, as applicable, on the part of such Purchaser. Each
Transaction Document to which it is a party has been duly executed by such Purchaser, and when delivered by such Purchaser in accordance
with the terms hereof, will constitute the valid and legally binding obligation of such Purchaser, enforceable against it in accordance
with its terms, except: (i) as limited by general equitable principles and applicable bankruptcy, insolvency, reorganization, moratorium
and other laws of general application affecting enforcement of creditors’ rights generally, (ii) as limited by laws relating to
the availability of specific performance, injunctive relief or other equitable remedies and (iii) insofar as indemnification and contribution
provisions may be limited by applicable law.

(b)    
Understandings or Arrangements. Such Purchaser is acquiring the Securities as principal for
its own account and has no direct or indirect arrangement or understandings with any other persons to distribute or regarding the distribution
of such Securities (this representation and warranty not limiting such Purchaser’s right to sell the Securities pursuant to the
Registration Statement or otherwise in compliance with applicable federal and state securities laws). Such Purchaser is acquiring the
Securities hereunder in the ordinary course of its business.

(c)     
Purchaser Status. At the time such Purchaser was offered the Securities, it was, and as of
the date hereof it is, and on each date on which it exercises any Warrants or converts any shares of Preferred Stock it will be either:
(i) an “accredited investor” as defined in Rule 501(a)(1), (a)(2), (a)(3), (a)(7), (a)(8), (a)(9), (a)(12), or (a)(13) under
the Securities Act or (ii) a “qualified institutional buyer” as defined in Rule 144A(a) under the Securities Act. 

(d)     Experience of Such Purchaser. Such Purchaser, either alone or together with its representatives,
has such knowledge, sophistication and experience in business and financial matters so as to be capable of evaluating the merits and risks
of the prospective investment in the Securities, and has so evaluated the merits and risks of such investment. Such Purchaser is able
to bear the economic risk of an investment in the Securities and, at the present time, is able to afford a complete loss of such investment.

    	24  

    	 

    

(e)     
Access to Information. Such Purchaser acknowledges that it has had the opportunity to review
the Transaction Documents (including all exhibits and schedules thereto) and the SEC Reports and has been afforded, (i) the opportunity
to ask such questions as it has deemed necessary of, and to receive answers from, representatives of the Company concerning the terms
and conditions of the offering of the Securities and the merits and risks of investing in the Securities; (ii) access to information about
the Company and its financial condition, results of operations, business, properties, management and prospects sufficient to enable it
to evaluate its investment; and (iii) the opportunity to obtain such additional information that the Company possesses or can acquire
without unreasonable effort or expense that is necessary to make an informed investment decision with respect to the investment. 
Such Purchaser acknowledges and agrees that neither the Placement Agent nor any Affiliate of the Placement Agent has provided such Purchaser
with any information or advice with respect to the Securities nor is such information or advice necessary or desired.  Neither the
Placement Agent nor any Affiliate has made or makes any representation as to the Company or the quality of the Securities and the Placement
Agent and any Affiliate may have acquired non-public information with respect to the Company which such Purchaser agrees need not be provided
to it.  In connection with the issuance of the Securities to such Purchaser, neither the Placement Agent nor any of its Affiliates
has acted as a financial advisor or fiduciary to such Purchaser.

(f)      Certain Transactions and Confidentiality. Other than consummating the transactions contemplated
hereunder, such Purchaser has not directly or indirectly, nor has any Person acting on behalf of or pursuant to any understanding with
such Purchaser, executed any purchases or sales, including Short Sales, of the securities of the Company during the period commencing
as of the time that such Purchaser first received a term sheet (written or oral) from the Company or any other Person representing the
Company setting forth the material terms of the transactions contemplated hereunder and ending immediately prior to the execution hereof.
Notwithstanding the foregoing, in the case of a Purchaser that is a multi-managed investment vehicle whereby separate portfolio managers
manage separate portions of such Purchaser’s assets and the portfolio managers have no direct knowledge of the investment decisions
made by the portfolio managers managing other portions of such Purchaser’s assets, the representation set forth above shall only
apply with respect to the portion of assets managed by the portfolio manager that made the investment decision to purchase the Securities
covered by this Agreement. Other than to other Persons party to this Agreement or to such Purchaser’s representatives, including,
without limitation, its officers, directors, partners, legal and other advisors, employees, agents and Affiliates, such Purchaser has
maintained the confidentiality of all disclosures made to it in connection with this transaction (including the existence and terms of
this transaction). Notwithstanding the foregoing, for the avoidance of doubt, nothing contained herein shall constitute a representation
or warranty, or preclude any actions, with respect to locating or borrowing shares in order to effect Short Sales or similar transactions
in the future.

The Company acknowledges and agrees that the representations
contained in this Section 3.2 shall not modify, amend or affect such Purchaser’s right to rely on the Company’s representations
and warranties contained in this Agreement or any representations and warranties contained in any other Transaction Document or any other
document or instrument executed and/or delivered in connection with this Agreement or the consummation of the transactions contemplated
hereby. Notwithstanding the foregoing, for the avoidance of doubt, nothing contained herein shall constitute a representation or warranty,
or preclude any actions, with respect to locating or borrowing shares in order to effect Short Sales or similar transactions in the future.

 

    	25  

    	 

    

ARTICLE IV. 

OTHER AGREEMENTS OF THE PARTIES

4.1     
Underlying Shares. The shares of Common Stock underlying the shares of Preferred Stock shall
be issued free of legends. If all or any portion of a Warrant is exercised at a time when there is an effective registration statement
to cover the issuance or resale of the Warrant Shares or if the Warrant is exercised via cashless exercise, the Warrant Shares issued
pursuant to any such exercise shall be issued free of all legends. If at any time following the date hereof the Registration Statement
(or any subsequent registration statement registering the sale or resale of the Warrant Shares) is not effective or is not otherwise available
for the sale or resale of the Warrant Shares, the Company shall immediately notify the holders of the Warrants in writing that such registration
statement is not then effective and thereafter shall promptly notify such holders when the registration statement is effective again and
available for the sale or resale of the Warrant Shares (it being understood and agreed that the foregoing shall not limit the ability
of the Company to issue, or any Purchaser to sell, any of the Warrant Shares in compliance with applicable federal and state securities
laws). The Company shall use best efforts to keep a registration statement (including the Registration Statement) registering the issuance
or resale of the Warrant Shares effective during the term of the Warrants.

4.2       Acknowledgment of Dilution. The Company acknowledges that the issuance of the Securities may
result in dilution of the outstanding shares of Common Stock, which dilution may be substantial under certain market conditions. The Company
further acknowledges that its obligations under the Transaction Documents, including, without limitation, its obligation to issue the
Underlying Shares pursuant to the Transaction Documents, are unconditional and absolute and not subject to any right of set off, counterclaim,
delay or reduction, regardless of the effect of any such dilution or any claim the Company may have against any Purchaser and regardless
of the dilutive effect that such issuance may have on the ownership of the other stockholders of the Company.

4.3     
Furnishing of Information; Public Information. Until the earliest of the time that (i) no
Purchaser owns Securities or (ii) the Warrants have expired, the Company covenants to maintain the registration of the Common Stock under
Section 12(b) or 12(g) of the Exchange Act and to timely file (or obtain extensions in respect thereof and file within the applicable
grace period) all reports required to be filed by the Company after the date hereof pursuant to the Exchange Act even if the Company is
not then subject to the reporting requirements of the Exchange Act. 

4.4     
Integration. The Company shall not sell, offer for sale or solicit offers to buy or otherwise
negotiate in respect of any security (as defined in Section 2 of the Securities Act) that would be integrated with the offer or sale of
the Securities for purposes of the rules and regulations of any Trading Market such that it would require shareholder approval prior to
the closing of such other transaction unless shareholder approval is obtained before the closing of such subsequent transaction.

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4.5     
Conversion and Exercise Procedures. Each of the form of Notice of Exercise included in the
Warrants and the form of Notice of Conversion included in the Certificate of Designation set forth the totality of the procedures required
of the Purchasers in order to exercise the Warrants or convert the Preferred Stock. Without limiting the preceding sentences, no ink-original
Notice of Exercise or Notice of Conversion shall be required, nor shall any medallion guarantee (or other type of guarantee or notarization)
of any Notice of Exercise or Notice of Conversion form be required in order to exercise the Warrants or convert the Preferred Stock. No
additional legal opinion, other information or instructions shall be required of the Purchasers to exercise their Warrants or convert
their Preferred Stock. The Company shall honor exercises of the Warrants and conversions of the Preferred Stock and shall deliver Underlying
Shares in accordance with the terms, conditions and time periods set forth in the Transaction Documents.

4.6     
Securities Laws Disclosure; Publicity. The Company shall (a) by the Disclosure Time, issue
a press release disclosing the material terms of the transactions contemplated hereby and (b) file a Current Report on Form 8-K, including
the Transaction Documents as exhibits thereto, with the Commission within the time required by the Exchange Act. From and after the issuance
of such press release, the Company represents to the Purchasers that it shall have publicly disclosed all material, non-public information
delivered to any of the Purchasers by the Company or any of its Subsidiaries, or any of their respective officers, directors, employees
or agents in connection with the transactions contemplated by the Transaction Documents. In addition, effective upon the issuance of such
press release, the Company acknowledges and agrees that any and all confidentiality or similar obligations under any agreement, whether
written or oral, between the Company, any of its Subsidiaries or any of their respective officers, directors, agents, employees or Affiliates
on the one hand, and any of the Purchasers or any of their Affiliates on the other hand, shall terminate. The Company and each Purchaser
shall consult with each other in issuing any other press releases with respect to the transactions contemplated hereby, and neither the
Company nor any Purchaser shall issue any such press release nor otherwise make any such public statement without the prior consent of
the Company, with respect to any press release of any Purchaser, or without the prior consent of each Purchaser, with respect to any press
release of the Company, which consent shall not unreasonably be withheld or delayed, except if such disclosure is required by law, in
which case the disclosing party shall promptly provide the other party with prior notice of such public statement or communication. Notwithstanding
the foregoing, the Company shall not publicly disclose the name of any Purchaser, or include the name of any Purchaser in any filing with
the Commission or any regulatory agency or Trading Market, without the prior written consent of such Purchaser, except: (a) as required
by federal securities law in connection with the filing of final Transaction Documents with the Commission and (b) to the extent such
disclosure is required by law or Trading Market regulations, in which case the Company shall provide the Purchasers with prior notice
of such disclosure permitted under this clause (b).

4.7      
Shareholder Rights Plan. No claim will be made or enforced by the Company or, with the consent
of the Company, any other Person, that any Purchaser is an “Acquiring Person” under any control share acquisition, business
combination, poison pill (including any distribution under a rights agreement) or similar anti-takeover plan or arrangement in effect
or hereafter adopted by the Company, or that any Purchaser could be deemed to trigger the provisions of any such plan or arrangement,
by virtue of receiving Securities under the Transaction Documents or under any other agreement between the Company and the Purchasers.

    	27  

    	 

    

4.8    
Non-Public Information. Except with respect to the material terms and conditions of the transactions
contemplated by the Transaction Documents, which shall be disclosed pursuant to Section 4.6, the Company covenants and agrees that neither
it, nor any other Person acting on its behalf will provide any Purchaser or its agents or counsel with any information that constitutes,
or the Company reasonably believes constitutes, material non-public information, unless prior thereto such Purchaser shall have consented
to the receipt of such information and agreed with the Company to keep such information confidential. The Company understands and confirms
that each Purchaser shall be relying on the foregoing covenant in effecting transactions in securities of the Company. To the extent that
the Company any of its Subsidiaries, or any of their respective officers, directors, agents, employees or Affiliates delivers any material,
non-public information to a Purchaser without such Purchaser’s consent, the Company hereby covenants and agrees that such Purchaser
shall not have any duty of confidentiality to the Company, any of its Subsidiaries, or any of their respective officers, directors, agents,
employees or Affiliates, or a duty to the Company, any of its Subsidiaries or any of their respective officers, directors, agents, employees
or Affiliates not to trade on the basis of, such material, non-public information, provided that the Purchaser shall remain subject to
applicable law. To the extent that any notice provided pursuant to any Transaction Document constitutes, or contains, material, non-public
information regarding the Company or any Subsidiaries, the Company shall simultaneously file such notice with the Commission pursuant
to a Current Report on Form 8-K. The Company understands and confirms that each Purchaser shall be relying on the foregoing covenant in
effecting transactions in securities of the Company.

4.9      
Use of Proceeds. Except as set forth on Schedule 4.9 attached hereto, the Company shall
use the net proceeds from the sale of the Securities hereunder for working capital purposes and shall not use such proceeds: (a) for the
satisfaction of any portion of the Company’s debt (other than payment of trade payables in the ordinary course of the Company’s
business and prior practices), (b) for the redemption of any Common Stock or Common Stock Equivalents, (c) for the settlement of any outstanding
litigation or (d) in violation of FCPA or OFAC regulations.

    	28  

    	 

    

4.10  
Indemnification of Purchasers. Subject to the provisions of this Section 4.10, the Company
will indemnify and hold each Purchaser and its directors, officers, shareholders, members, partners, employees and agents (and any other
Persons with a functionally equivalent role of a Person holding such titles notwithstanding a lack of such title or any other title),
each Person who controls such Purchaser (within the meaning of Section 15 of the Securities Act and Section 20 of the Exchange Act),
and the directors, officers, shareholders, agents, members, partners or employees (and any other Persons with a functionally equivalent
role of a Person holding such titles notwithstanding a lack of such title or any other title) of such controlling persons (each, a “Purchaser
Party”) harmless from any and all losses, liabilities, obligations, claims, contingencies, damages, costs and expenses, including
all judgments, amounts paid in settlements, court costs and reasonable attorneys’ fees and costs of investigation that any such
Purchaser Party may suffer or incur as a result of or relating to (a) any breach of any of the representations, warranties, covenants
or agreements made by the Company in this Agreement or in the other Transaction Documents or (b) any action instituted against the Purchaser
Parties in any capacity, or any of them or their respective Affiliates, by any stockholder of the Company who is not an Affiliate of
such Purchaser Party, with respect to any of the transactions contemplated by the Transaction Documents (unless such action is solely
based upon a material breach of such Purchaser Party’s representations, warranties or covenants under the Transaction Documents
or any agreements or understandings such Purchaser Party may have with any such stockholder or any violations by such Purchaser Party
of state or federal securities laws or any conduct by such Purchaser Party which is finally judicially determined to constitute fraud,
gross negligence or willful misconduct). If any action shall be brought against any Purchaser Party in respect of which indemnity may
be sought pursuant to this Agreement, such Purchaser Party shall promptly notify the Company in writing, and the Company shall have the
right to assume the defense thereof with counsel of its own choosing reasonably acceptable to the Purchaser Party. Any Purchaser Party
shall have the right to employ separate counsel in any such action and participate in the defense thereof, but the fees and expenses
of such counsel shall be at the expense of such Purchaser Party except to the extent that (i) the employment thereof has been specifically
authorized by the Company in writing, (ii) the Company has failed after a reasonable period of time to assume such defense and to employ
counsel or (iii) in such action there is, in the reasonable opinion of counsel, a material conflict on any material issue between the
position of the Company and the position of such Purchaser Party, in which case the Company shall be responsible for the reasonable fees
and expenses of no more than one such separate counsel. The Company will not be liable to any Purchaser Party under this Agreement (y)
for any settlement by a Purchaser Party effected without the Company’s prior written consent, which shall not be unreasonably withheld
or delayed; or (z) to the extent, but only to the extent that a loss, claim, damage or liability is attributable to any Purchaser Party’s
breach of any of the representations, warranties, covenants or agreements made by such Purchaser Party in this Agreement or in the other
Transaction Documents. The indemnification required by this Section 4.10 shall be made by periodic payments of the amount thereof during
the course of the investigation or defense, as and when bills are received or are incurred. The indemnity agreements contained herein
shall be in addition to any cause of action or similar right of any Purchaser Party against the Company or others and any liabilities
the Company may be subject to pursuant to law.

    	29  

    	 

    

4.11   
Reservation and Listing of Securities.

(a)     
On and after the Authorized Share Increase Date, the Company shall maintain a reserve from its duly
authorized shares of Common Stock for issuance pursuant to the Transaction Documents in such amount as may then be required to fulfill
its obligations in full under the Transaction Documents.

(b)      The Company shall hold a special meeting of stockholders (which may also be at the annual meeting
of stockholders) on or prior to December 9, 2021 for the purpose of obtaining the Voting Amendment Approval and the Authorized Share Approval,
with the recommendation of the Company’s Board of Directors that such proposals are approved, and the Company shall solicit proxies
from its stockholders in connection therewith in the same manner as all other management proposals in such proxy statement and all management-appointed
proxyholders shall vote their proxies in favor of such proposals. The Company shall use its best efforts to obtain Voting Amendment Approval
and Authorized Share Approval. If the Company does not obtain Authorized Share Approval at the first meeting, the Company shall call a
meeting every seventy five (75) days thereafter to seek Authorized Share Approval until the date on which Authorized Share Approval is
obtained. When the Company obtains Voting Amendment Approval, the Company shall file the Voting Amendment with the State of Delaware as
soon as practicable, but in no event later than one (1) Business Day following the date of Voting Amendment Approval, provided that, if
required by applicable law, the Company shall file the Voting Amendment with the State of Delaware during the meeting of stockholders
held for such purpose. When the Company obtains Authorized Share Approval, the Company shall file the Amendment with the State of Delaware
as soon as practicable, but in no event later than one (1) Business Day following the date of Authorized Share Approval. On the Authorized
Share Increase Date, the Company shall file a Form 8-K disclosing that the Amendment has been filed with and accepted by the State of
Delaware.

(c)    
The Company shall, if applicable: (i) in the time and manner required by the principal Trading Market,
prepare and file with such Trading Market an additional shares listing application covering a number of shares of Common Stock at least
equal to the Required Minimum on the date of such application, (ii) take all steps necessary to cause such shares of Common Stock to be
approved for listing or quotation on such Trading Market as soon as possible thereafter, (iii) provide to the Purchasers evidence of such
listing or quotation and (iv) maintain the listing or quotation of such Common Stock on any date at least equal to the Required Minimum
on such date on such Trading Market or another Trading Market. The Company agrees to maintain the eligibility of the Common Stock for
electronic transfer through the Depository Trust Company or another established clearing corporation, including, without limitation, by
timely payment of fees to the Depository Trust Company or such other established clearing corporation in connection with such electronic
transfer.

4.12        
[RESERVED]

    	30  

    	 

    

4.13        
Subsequent Equity Sales. 

(a)     
From the date hereof until ninety (90) days after the Authorized Share Increase Date, neither the
Company nor any Subsidiary shall (i) issue, enter into any agreement to issue or announce the issuance or proposed issuance of any shares
of Common Stock or Common Stock Equivalents or (ii) file any registration statement or amendment or supplement thereto, other than the
Prospectus Supplement.

(b)     
From the date hereof until six (6) months following the Authorized Share Increase Date, the Company
shall be prohibited from effecting or entering into an agreement to effect any issuance by the Company or any of its Subsidiaries of
Common Stock or Common Stock Equivalents (or a combination of units thereof) involving a Variable Rate Transaction. “Variable
Rate Transaction” means a transaction in which the Company (i) issues or sells any debt or equity securities that are convertible
into, exchangeable or exercisable for, or include the right to receive, additional shares of Common Stock either (A) at a conversion
price, exercise price or exchange rate or other price that is based upon, and/or varies with, the trading prices of or quotations for
the shares of Common Stock at any time after the initial issuance of such debt or equity securities or (B) with a conversion, exercise
or exchange price that is subject to being reset at some future date after the initial issuance of such debt or equity security or upon
the occurrence of specified or contingent events directly or indirectly related to the business of the Company or the market for the
Common Stock or (ii) enters into, or effects a transaction under, any agreement, including, but not limited to, an equity line of credit,
whereby the Company may issue securities at a future determined price. Any Purchaser shall be entitled to obtain injunctive relief against
the Company to preclude any such issuance, which remedy shall be in addition to any right to collect damages. 

(c)     
Until the Authorized Share Increase Date, neither the Company nor any Subsidiary shall make any issuance
whatsoever of Common Stock or Common Stock Equivalents. Any Purchaser shall be entitled to obtain injunctive relief against the Company
to preclude any such issuance, which remedy shall be in addition to any right to collect damages. 

(d)    
Notwithstanding the foregoing, this Section 4.13 shall not apply in respect of an Exempt Issuance,
except that no Variable Rate Transaction shall be an Exempt Issuance.

4.14        
Equal Treatment of Purchasers. No consideration (including any modification of any Transaction
Document) shall be offered or paid to any Person to amend or consent to a waiver or modification of any provision of the Transaction Documents
unless the same consideration is also offered to all of the parties to such Transaction Documents. For clarification purposes, this provision
constitutes a separate right granted to each Purchaser by the Company and negotiated separately by each Purchaser, and is intended for
the Company to treat the Purchasers as a class and shall not in any way be construed as the Purchasers acting in concert or as a group
with respect to the purchase, disposition or voting of Securities or otherwise.

    	31  

    	 

    

4.15        
Certain Transactions and Confidentiality. Each Purchaser, severally and not jointly with the
other Purchasers, covenants that neither it, nor any Affiliate acting on its behalf or pursuant to any understanding with it will execute
any purchases or sales, including Short Sales, of any of the Company’s securities during the period commencing with the execution
of this Agreement and ending at such time that the transactions contemplated by this Agreement are first publicly announced pursuant to
the initial press release as described in Section 4.6.  Each Purchaser, severally and not jointly with the other Purchasers, covenants
that until such time as the transactions contemplated by this Agreement are publicly disclosed by the Company pursuant to the initial
press release as described in Section 4.6, such Purchaser will maintain the confidentiality of the existence and terms of this transaction
and the information included in the Transaction Documents and the Disclosure Schedules. Notwithstanding the foregoing, and notwithstanding
anything contained in this Agreement to the contrary, the Company expressly acknowledges and agrees that (i) no Purchaser makes any representation,
warranty or covenant hereby that it will not engage in effecting transactions in any securities of the Company after the time that the
transactions contemplated by this Agreement are first publicly announced pursuant to the initial press release as described in Section
4.6, (ii) no Purchaser shall be restricted or prohibited from effecting any transactions in any securities of the Company in accordance
with applicable securities laws from and after the time that the transactions contemplated by this Agreement are first publicly announced
pursuant to the initial press release as described in Section 4.6 and (iii) no Purchaser shall have any duty of confidentiality or duty
not to trade in the securities of the Company to the Company or its Subsidiaries after the issuance of the initial press release as described
in Section 4.6.  Notwithstanding the foregoing, in the case of a Purchaser that is a multi-managed investment vehicle whereby separate
portfolio managers manage separate portions of such Purchaser’s assets and the portfolio managers have no direct knowledge of the
investment decisions made by the portfolio managers managing other portions of such Purchaser’s assets, the covenant set forth above
shall only apply with respect to the portion of assets managed by the portfolio manager that made the investment decision to purchase
the Securities covered by this Agreement.

4.16        
Authorized Share Approval. From the date hereof up to and including the Authorized Share Increase
Date, each Purchaser, severally and not jointly with the other Purchasers, covenants that it will not offer, sell, contract to sell, hypothecate,
pledge or otherwise dispose of (or enter into any transaction which is designed to, or might reasonably be expected to, result in the
disposition (whether by actual disposition or effective economic disposition due to cash settlement or otherwise)) any shares of Preferred
Stock. Each Purchaser covenants that such Purchaser will vote all shares of Common Stock and all shares of Preferred Stock over which
such Purchaser or its Affiliates has voting control in favor of any resolution presented to the stockholders of the Company for the purpose
of obtaining Voting Amendment Approval and Authorized Share Approval.

    	32  

    	 

    

ARTICLE V. 

MISCELLANEOUS

5.1   
Termination.  This Agreement may be terminated by any Purchaser, as to such Purchaser’s
obligations hereunder only and without any effect whatsoever on the obligations between the Company and the other Purchasers, by written
notice to the other parties, if the Closing has not been consummated on or before the fifth (5th) Trading Day following the
date hereof; provided, however, that such termination will not affect the right of any party to sue for any breach by any
other party (or parties).

5.2     
Fees and Expenses. Except as expressly set forth in the Transaction Documents to the contrary,
each party shall pay the fees and expenses of its advisers, counsel, accountants and other experts, if any, and all other expenses incurred
by such party incident to the negotiation, preparation, execution, delivery and performance of this Agreement. The Company shall pay
all Transfer Agent fees (including, without limitation, any fees required for same-day processing of any instruction letter delivered
by the Company and any conversion or exercise notice delivered by a Purchaser), stamp taxes and other taxes and duties levied in connection
with the delivery of any Securities to the Purchasers.

5.3     
Entire Agreement. The Transaction Documents, together with the exhibits and schedules thereto,
the Prospectus and the Prospectus Supplement, contain the entire understanding of the parties with respect to the subject matter hereof
and thereof and supersede all prior agreements and understandings, oral or written, with respect to such matters, which the parties acknowledge
have been merged into such documents, exhibits and schedules.

5.4    
Notices. Any and all notices or other communications or deliveries required or permitted
to be provided hereunder shall be in writing and shall be deemed given and effective on the earliest of: (a) the time of transmission,
if such notice or communication is delivered via facsimile at the facsimile number or email attachment at the email address as set forth
on the signature pages attached hereto at or prior to 5:30 p.m. (New York City time) on a Trading Day, (b) the next Trading Day after
the time of transmission, if such notice or communication is delivered via facsimile at the facsimile number or email attachment at the
email address as set forth on the signature pages attached hereto on a day that is not a Trading Day or later than 5:30 p.m. (New York
City time) on any Trading Day, (c) the second (2nd) Trading Day following the date of mailing, if sent by U.S. nationally
recognized overnight courier service or (d) upon actual receipt by the party to whom such notice is required to be given. The address
for such notices and communications shall be as set forth on the signature pages attached hereto.

5.5    
Amendments; Waivers. No provision of this Agreement may be waived, modified, supplemented
or amended except in a written instrument signed, in the case of an amendment, by the Company and Purchasers which purchased at least
50.1% in interest of the Preferred Stock based on the initial Subscription Amounts hereunder (or, prior to the Closing, the Company and
each Purchaser) or, in the case of a waiver, by the party against whom enforcement of any such waived provision is sought, provided that
if any amendment, modification or waiver disproportionately and adversely impacts a Purchaser (or group of Purchasers), the consent of
such disproportionately impacted Purchaser (or group of Purchasers) shall also be required. No waiver of any default with respect to any
provision, condition or requirement of this Agreement shall be deemed to be a continuing waiver in the future or a waiver of any subsequent
default or a waiver of any other provision, condition or requirement hereof, nor shall any delay or omission of any party to exercise
any right hereunder in any manner impair the exercise of any such right. Any proposed amendment or waiver that disproportionately, materially
and adversely affects the rights and obligations of any Purchaser relative to the comparable rights and obligations of the other Purchasers
shall require the prior written consent of such adversely affected Purchaser. Any amendment effected in accordance with this Section 5.5
shall be binding upon each Purchaser and holder of Securities and the Company.

    	33  

    	 

    

5.6    
Headings. The headings herein are for convenience only, do not constitute a part of this Agreement
and shall not be deemed to limit or affect any of the provisions hereof.

5.7    
Successors and Assigns. This Agreement shall be binding upon and inure to the benefit of the
parties and their successors and permitted assigns. The Company may not assign this Agreement or any rights or obligations hereunder without
the prior written consent of each Purchaser (other than by merger). Any Purchaser may assign any or all of its rights under this Agreement
to any Person to whom such Purchaser assigns or transfers any Securities, provided that such transferee agrees in writing to be bound,
with respect to the transferred Securities, by the provisions of the Transaction Documents that apply to the “Purchasers.”

5.8   
No Third-Party Beneficiaries. The Placement Agent shall be the third party beneficiary of
the representations and warranties of the Company in Section 3.1 and the representations and warranties of the Purchasers in Section 3.2.
This Agreement is intended for the benefit of the parties hereto and their respective successors and permitted assigns and is not for
the benefit of, nor may any provision hereof be enforced by, any other Person, except as otherwise set forth in Section 4.10 and this
Section 5.8.

5.9  
 Governing Law. All questions concerning the construction, validity, enforcement and interpretation
of the Transaction Documents shall be governed by and construed and enforced in accordance with the internal laws of the State of New
York, without regard to the principles of conflicts of law thereof. Each party agrees that all legal Proceedings concerning the interpretations,
enforcement and defense of the transactions contemplated by this Agreement and any other Transaction Documents (whether brought against
a party hereto or its respective affiliates, directors, officers, stockholders, partners, members, employees or agents) shall be commenced
exclusively in the state and federal courts sitting in the City of New York. Each party hereby irrevocably submits to the exclusive jurisdiction
of the state and federal courts sitting in the City of New York, Borough of Manhattan for the adjudication of any dispute hereunder or
in connection herewith or with any transaction contemplated hereby or discussed herein (including with respect to the enforcement of any
of the Transaction Documents), and hereby irrevocably waives, and agrees not to assert in any Action or Proceeding, any claim that it
is not personally subject to the jurisdiction of any such court, that such Action or Proceeding is improper or is an inconvenient venue
for such Proceeding. Each party hereby irrevocably waives personal service of process and consents to process being served in any such
Action or Proceeding by mailing a copy thereof via registered or certified mail or overnight delivery (with evidence of delivery) to such
party at the address in effect for notices to it under this Agreement and agrees that such service shall constitute good and sufficient
service of process and notice thereof. Nothing contained herein shall be deemed to limit in any way any right to serve process in any
other manner permitted by law. If any party shall commence an Action or Proceeding to enforce any provisions of the Transaction Documents,
then, in addition to the obligations of the Company under Section 4.10, the prevailing party in such Action or Proceeding shall be reimbursed
by the non-prevailing party for its reasonable attorneys’ fees and other costs and expenses incurred with the investigation, preparation
and prosecution of such Action or Proceeding.

    	34  

    	 

    

5.10   
Survival. The representations and warranties contained herein shall survive the Closing and
the delivery of the Securities.

5.11   
Execution. This Agreement may be executed in two or more counterparts, all of which when taken
together shall be considered one and the same agreement and shall become effective when counterparts have been signed by each party and
delivered to each other party, it being understood that the parties need not sign the same counterpart. In the event that any signature
is delivered by facsimile transmission or by e-mail delivery of a “.pdf” format data file, such signature shall create a valid
and binding obligation of the party executing (or on whose behalf such signature is executed) with the same force and effect as if such
facsimile or “.pdf” signature page were an original thereof.

5.12    
Severability. If any term, provision, covenant or restriction of this Agreement is held by
a court of competent jurisdiction to be invalid, illegal, void or unenforceable, the remainder of the terms, provisions, covenants and
restrictions set forth herein shall remain in full force and effect and shall in no way be affected, impaired or invalidated, and the
parties hereto shall use their commercially reasonable efforts to find and employ an alternative means to achieve the same or substantially
the same result as that contemplated by such term, provision, covenant or restriction. It is hereby stipulated and declared to be the
intention of the parties that they would have executed the remaining terms, provisions, covenants and restrictions without including
any of such that may be hereafter declared invalid, illegal, void or unenforceable.

5.13   
Rescission and Withdrawal Right. Notwithstanding anything to the contrary contained in (and
without limiting any similar provisions of) any of the other Transaction Documents, whenever any Purchaser exercises a right, election,
demand or option under a Transaction Document and the Company does not timely perform its related obligations within the periods therein
provided, then such Purchaser may rescind or withdraw, in its sole discretion from time to time upon written notice to the Company, any
relevant notice, demand or election in whole or in part without prejudice to its future actions and rights; provided, however,
that in the case of a rescission of a conversion of the Preferred Stock or exercise of a Warrant, the applicable Purchaser shall be required
to return any shares of Common Stock subject to any such rescinded conversion or exercise notice concurrently with the return to such
Purchaser of the aggregate exercise price paid to the Company for such shares and the restoration of such Purchaser’s right to acquire
such shares pursuant to such Purchaser’s Warrant (including, issuance of a replacement warrant certificate evidencing such restored
right).

5.14    
Replacement of Securities. If any certificate or instrument evidencing any Securities is mutilated,
lost, stolen or destroyed, the Company shall issue or cause to be issued in exchange and substitution for and upon cancellation thereof
(in the case of mutilation), or in lieu of and substitution therefor, a new certificate or instrument, but only upon receipt of evidence
reasonably satisfactory to the Company of such loss, theft or destruction. The applicant for a new certificate or instrument under such
circumstances shall also pay any reasonable third-party costs (including customary indemnity) associated with the issuance of such replacement
Securities.

    	35  

    	 

    

5.15    
Remedies. In addition to being entitled to exercise all rights provided herein or granted
by law, including recovery of damages, each of the Purchasers and the Company will be entitled to specific performance under the Transaction
Documents. The parties agree that monetary damages may not be adequate compensation for any loss incurred by reason of any breach of obligations
contained in the Transaction Documents and hereby agree to waive and not to assert in any Action for specific performance of any such
obligation the defense that a remedy at law would be adequate. 

5.16    Payment Set Aside. To the extent that the Company makes a payment or payments to any Purchaser
pursuant to any Transaction Document or a Purchaser enforces or exercises its rights thereunder, and such payment or payments or the proceeds
of such enforcement or exercise or any part thereof are subsequently invalidated, declared to be fraudulent or preferential, set aside,
recovered from, disgorged by or are required to be refunded, repaid or otherwise restored to the Company, a trustee, receiver or any other
Person under any law (including, without limitation, any bankruptcy law, state or federal law, common law or equitable cause of action),
then to the extent of any such restoration the obligation or part thereof originally intended to be satisfied shall be revived and continued
in full force and effect as if such payment had not been made or such enforcement or setoff had not occurred.

5.17   
Usury. To the extent it may lawfully do so, the Company hereby agrees not to insist upon or
plead or in any manner whatsoever claim, and will resist any and all efforts to be compelled to take the benefit or advantage of, usury
laws wherever enacted, now or at any time hereafter in force, in connection with any Action or Proceeding that may be brought by any Purchaser
in order to enforce any right or remedy under any Transaction Document. Notwithstanding any provision to the contrary contained in any
Transaction Document, it is expressly agreed and provided that the total liability of the Company under the Transaction Documents for
payments in the nature of interest shall not exceed the maximum lawful rate authorized under applicable law (the “Maximum Rate”),
and, without limiting the foregoing, in no event shall any rate of interest or default interest, or both of them, when aggregated with
any other sums in the nature of interest that the Company may be obligated to pay under the Transaction Documents exceed such Maximum
Rate. It is agreed that if the maximum contract rate of interest allowed by law and applicable to the Transaction Documents is increased
or decreased by statute or any official governmental action subsequent to the date hereof, the new maximum contract rate of interest allowed
by law will be the Maximum Rate applicable to the Transaction Documents from the Closing Date thereof forward, unless such application
is precluded by applicable law. If under any circumstances whatsoever, interest in excess of the Maximum Rate is paid by the Company to
any Purchaser with respect to indebtedness evidenced by the Transaction Documents, such excess shall be applied by such Purchaser to the
unpaid principal balance of any such indebtedness or be refunded to the Company, the manner of handling such excess to be at such Purchaser’s
election.

    	36  

    	 

    

5.18   
Independent Nature of Purchasers’ Obligations and Rights. The obligations of each Purchaser
under any Transaction Document are several and not joint with the obligations of any other Purchaser, and no Purchaser shall be responsible
in any way for the performance or non-performance of the obligations of any other Purchaser under any Transaction Document. Nothing contained
herein or in any other Transaction Document, and no action taken by any Purchaser pursuant hereto or thereto, shall be deemed to constitute
the Purchasers as a partnership, an association, a joint venture or any other kind of entity, or create a presumption that the Purchasers
are in any way acting in concert or as a group with respect to such obligations or the transactions contemplated by the Transaction Documents.
Each Purchaser shall be entitled to independently protect and enforce its rights, including, without limitation, the rights arising out
of this Agreement or out of the other Transaction Documents, and it shall not be necessary for any other Purchaser to be joined as an
additional party in any Proceeding for such purpose. Each Purchaser has been represented by its own separate legal counsel in its review
and negotiation of the Transaction Documents. For reasons of administrative convenience only, each Purchaser and its respective counsel
have chosen to communicate with the Company through EGS. EGS does not represent any of the Purchasers and only represents the Placement
Agent. The Company has elected to provide all Purchasers with the same terms and Transaction Documents for the convenience of the Company
and not because it was required or requested to do so by any of the Purchasers. It is expressly understood and agreed that each provision
contained in this Agreement and in each other Transaction Document is between the Company and a Purchaser, solely, and not between the
Company and the Purchasers collectively and not between and among the Purchasers.

5.19    
Liquidated Damages. The Company’s obligations to pay any partial liquidated damages
or other amounts owing under the Transaction Documents is a continuing obligation of the Company and shall not terminate until all unpaid
partial liquidated damages and other amounts have been paid notwithstanding the fact that the instrument or security pursuant to which
such partial liquidated damages or other amounts are due and payable shall have been canceled.

5.20   
Saturdays, Sundays, Holidays, etc.If the last or appointed day for the taking of any action
or the expiration of any right required or granted herein shall not be a Business Day, then such action may be taken or such right may
be exercised on the next succeeding Business Day.

5.21   
Construction. The parties agree that each of them and/or their respective counsel have reviewed
and had an opportunity to revise the Transaction Documents and, therefore, the normal rule of construction to the effect that any ambiguities
are to be resolved against the drafting party shall not be employed in the interpretation of the Transaction Documents or any amendments
thereto. In addition, each and every reference to share prices and shares of Common Stock in any Transaction Document shall be subject
to adjustment for reverse and forward stock splits, stock dividends, stock combinations and other similar transactions of the Common Stock
that occur after the date of this Agreement.

5.22  
WAIVER OF JURY TRIAL. IN ANY ACTION, SUIT, OR PROCEEDING IN ANY JURISDICTION BROUGHT BY
ANY PARTY AGAINST ANY OTHER PARTY, THE PARTIES EACH KNOWINGLY AND INTENTIONALLY, TO THE GREATEST EXTENT PERMITTED BY APPLICABLE LAW, HEREBY
ABSOLUTELY, UNCONDITIONALLY, IRREVOCABLY AND EXPRESSLY WAIVES FOREVER TRIAL BY JURY. 

 

(Signature Pages Follow)

    	37  

    	 

    

IN WITNESS WHEREOF, the
parties hereto have caused this Securities Purchase Agreement to be duly executed by their respective authorized signatories as of the
date first indicated above.

	
    opgen, inc.

     

     
	Address for Notice:
	
    By:__________________________________________

    Name:

    Title:

     

    With a copy to (which shall not constitute notice):
	
     

     

    E-mail:

	
     

     

     
	 

 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK

SIGNATURE PAGE FOR PURCHASER FOLLOWS]

    	38  

    	 

    

[PURCHASER
SIGNATURE PAGES TO OPGN SECURITIES PURCHASE AGREEMENT]

 

IN WITNESS WHEREOF, the
undersigned have caused this Securities Purchase Agreement to be duly executed by their respective authorized signatories as of the date
first indicated above.

Name of Purchaser: ________________________________________________________

Signature of Authorized Signatory of Purchaser:
__________________________________

Name of Authorized Signatory: ____________________________________________________

Title of Authorized Signatory: _____________________________________________________

Email Address of Authorized Signatory: _____________________________________________

Address for Notice to Purchaser:

 

 

 

Address for Delivery of Securities to Purchaser (if not same as address
for notice):

 

 

 

 

Subscription Amount: $_____________

 

Shares of Preferred Stock: ____________ Beneficial Ownership Blocker o
4.99% or o 9.99%

 

Warrant Shares: _________________ Beneficial Ownership Blocker o
4.99% or o 9.99%

 

EIN Number: _______________________

 

o Notwithstanding
anything contained in this Agreement to the contrary, by checking this box (i) the obligations of the above-signed to purchase the securities
set forth in this Agreement to be purchased from the Company by the above-signed, and the obligations of the Company to sell such securities
to the above-signed, shall be unconditional and all conditions to Closing shall be disregarded, (ii) the Closing shall occur on the second
(2nd) Trading Day following the date of this Agreement and (iii) any condition to Closing contemplated by this Agreement (but
prior to being disregarded by clause (i) above) that required delivery by the Company or the above-signed of any agreement, instrument,
certificate or the like or purchase price (as applicable) shall no longer be a condition and shall instead be an unconditional obligation
of the Company or the above-signed (as applicable) to deliver such agreement, instrument, certificate or the like or purchase price (as
applicable) to such other party on the Closing Date.

 

[SIGNATURE PAGES CONTINUE]

 

 

    	39

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