Exhibit 4.2





 


NEITHER
THIS SECURITY NOR THE SECURITIES INTO WHICH THIS SECURITY IS CONVERTIBLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE
COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT
OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO,
THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS AS EVIDENCED BY A
LEGAL OPINION OF COUNSEL TO THE TRANSFEROR TO SUCH EFFECT, THE SUBSTANCE OF WHICH SHALL BE REASONABLY ACCEPTABLE TO THE COMPANY.


 


Original
Issue Date: May 25, 2018 [Exchanged under Section 3(a)(9) for Convertible Promissory Note issued effective November 16, 2016]





 


Principal
Amount: $192,832.00





 


CONVERTIBLE
PROMISSORY NOTE


DUE
NOVEMBER 25, 2019


 


THIS
CONVERTIBLE PROMISSORY NOTE is one of a series of duly authorized and validly issued Convertible Promissory Notes of Avant Diagnostics,
Inc., (the “Company”), having its principal place of business at, (this Note, the “Note”
and, collectively with the other Notes of such series, the “Notes”).


 


FOR
VALUE RECEIVED, the Company promises to pay to Coastal Investment Partners LLC or its registered assigns (the “Holder”),
or shall have paid pursuant to the terms hereunder, the principal sum of $192,832.00, together with all interest as provided in
Section 2 of this Note, on November 25, 2019 (the “Maturity Date”) or such earlier date as this Note is required
or permitted to be repaid as provided hereunder.


 


This
Note is subject to the following additional provisions:


 


Section
1. Definitions. For the purposes hereof, in addition to the terms defined elsewhere in this Note, (a) capitalized terms
not otherwise defined herein shall have the meanings set forth in the Exchange Agreement and (b) the following terms shall have
the following meanings:


 


“Bankruptcy
Event” means any of the following events: (a) the Company or any Significant Subsidiary (as such term is defined in
Rule 1-02(w) of Regulation S-X) thereof commences a case or other proceeding under any bankruptcy, reorganization, arrangement,
adjustment of debt, relief of debtors, dissolution, insolvency or liquidation or similar law of any jurisdiction relating to the
Company or any Significant Subsidiary thereof, (b) there is commenced against the Company or any Significant Subsidiary thereof
any such case or proceeding that is not dismissed within 60 days after commencement, (c) the Company or any Significant Subsidiary
thereof is adjudicated insolvent or bankrupt or any order of relief or other order approving any such case or proceeding is entered,
(d) the Company or any Significant Subsidiary thereof suffers any appointment of any custodian or the like for it or any substantial
part of its property that is not discharged or stayed within 60 calendar days after such appointment, (e) the Company or any Significant
Subsidiary thereof makes a general assignment for the benefit of creditors, (f) the Company or any Significant Subsidiary thereof
calls a meeting of its creditors with a view to arranging a composition, adjustment or restructuring of its debts or (g) the Company
or any Significant Subsidiary thereof, by any act or failure to act, expressly indicates its consent to, approval of or acquiescence
in any of the foregoing or takes any corporate or other action for the purpose of effecting any of the foregoing.


 






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“Beneficial
Ownership Limitation” shall have the meaning set forth in Section 4(d).


 


“Business
Day” means any day except any Saturday, any Sunday, any day which is a federal legal holiday in the United States or
any day on which banking institutions in the State of Nevada are authorized or required by law or other governmental action to
close.


 


“Buy-In”
shall have the meaning set forth in Section 4(c)(v).


 


“Change
of Control Transaction” means the occurrence after the date hereof of any of (a) an acquisition after the date hereof
by an individual or legal entity or “group” (as described in Rule 13d-5(b)(1) promulgated under the Exchange Act)
of effective control (whether through legal or beneficial ownership of capital stock of the Company, by contract or otherwise)
of in excess of 50% of the voting securities of the Company (other than by means of conversion or exercise of the Notes and the
Securities issued together with the Notes), (b) the Company merges into or consolidates with any other Person, or any Person merges
into or consolidates with the Company and, after giving effect to such transaction, the stockholders of the Company immediately
prior to such transaction own less than 50% of the aggregate voting power of the Company or the successor entity of such transaction,
(c) the Company sells or transfers all or substantially all of its assets to another Person and the stockholders of the Company
immediately prior to such transaction own less than 50% of the aggregate voting power of the acquiring entity immediately after
the transaction, or (d) the execution by the Company of an agreement to which the Company is a party or by which it is bound,
providing for any of the events set forth in clauses (a) through (c) above.


 


“Conversion”
shall have the meaning ascribed to such term in Section 4.


 


“Conversion
Date” shall have the meaning set forth in Section 4(a).


 






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“Conversion
Price” shall have the meaning set forth in Section 4(b).


 


“Conversion
Schedule” means the Conversion Schedule in the form of Schedule 1 attached hereto.


 


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


 


“Equity
Conditions” means, during the period in question, (a) no Event of Default
shall have occurred, (b) the Company has timely filed (or obtained extensions in respect thereof and filed within the applicable
grace period) all reports other than Form 8-K
reports required to be filed by the Company after the date hereof pursuant to the Exchange Act, and (c) the Common Stock must
be DWAC Eligible and not subject to a “DTC chill”.


 


“Exchange
Agreement” means the Exchange Agreement, dated as of May 25, 2018 among the Company and the Holder, as amended, modified
or supplemented from time to time in accordance with its terms, pursuant to which this Note has been issued.


 


“Exempt
Issuance” means the issuance of (a) shares of Common Stock 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, (b) 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 Original Issue Date, provided that such securities
have not been amended since the Original Issue Date to increase the number of such securities or to decrease the exercise price,
exchange price or conversion price of such securities, (c) securities issued pursuant to acquisitions or strategic transactions
approved by a majority of the disinterested directors of the Company, provided that any such issuance shall only be to a Person
(or to the equity holders of a Person) which is, itself or through its subsidiaries, an operating company, 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, and (d) securities which are not Common Stock or Common Stock Equivalents in connection with
a public offering.


 


“Event
of Default” shall have the meaning set forth in Section 6(a).


 


“Mandatory
Default Amount” means the outstanding principal amount of this Note, plus all accrued and unpaid interest hereon, in
addition to the payment of all other amounts, costs, expenses and liquidated damages due in respect of this Note.


 


“Nevada
Courts” shall have the meaning set forth in Section 8(d).


 


“Notice
of Conversion” shall have the meaning set forth in Section 4(a).


 






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“Original
Issue Date” means the date of the first issuance of the Notes, regardless of any transfers of any Note and regardless
of the number of instruments which may be issued to evidence such Notes.


 


“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.


 


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


 


“Share
Delivery Date” shall have the meaning set forth in Section 4(c)(ii).


 


“Successor
Entity” shall have the meaning set forth in Section 5(e).


 


“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,
the New York Stock Exchange, the OTC Bulletin Board, OTCQB, or OTC Pink (or any successors to any of the foregoing).


 


Section
2.  Interest; Prepayment.


 


a)
Interest. Payment of Interest in Cash or Kind. The Company shall pay interest to the Holder on the aggregate unconverted
and then outstanding principal amount of this Note at the rate of 8% per annum. All interest payments hereunder will be payable
in cash, or subject to the Equity Conditions in the event of a conversion, in cash or Common Stock in the Holder’s discretion.
Accrued and unpaid interest shall be due and payable on each Conversion Date (as to that
principal amount then being converted), Prepayment Date (as to that principal amount
then being prepaid), and/or Maturity Date, or as otherwise set forth herein.


 


b)
Interest Calculations. Interest shall be calculated on the basis of a 360-day year, consisting of twelve 30 calendar day
periods, and shall accrue daily commencing on the Original Issue Date until payment in full of the outstanding principal, together
with all accrued and unpaid interest, liquidated damages and other amounts which may become due hereunder, has been made. Interest
hereunder will be paid to the Person in whose name this Note is registered on the records of the Company regarding registration
and transfers of this Note (the “Note Register”).


 






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c)
Late Fee. All overdue accrued and unpaid interest to be paid hereunder shall entail a late fee at an interest rate equal
to the lesser of 18% per annum or the maximum rate permitted by applicable law which shall accrue daily from the date such interest
is due hereunder through and including the date of actual payment in full.


 


b)
Prepayment. At any time upon five (5) calendar days written notice to the Holder, (a “Prepayment Notice”),
the Company may prepay any portion of the principal amount of this Note. If the Company does not make such payment within the
relevant Prepayment Period, it shall be required to deliver a new Prepayment Notice, and repeat the procedures set forth in this
Section 2, prior to pre-paying any portion of this Note. The Holder may continue to convert the Note from the date of its receipt
of any Prepayment Notice until the beginning of the Prepayment Period.


 


Section
3.Registration of Transfers and Exchanges.


 


a)  
Different Denominations. This Note is exchangeable for an equal aggregate principal amount of Notes of different authorized
denominations, as requested by the Holder surrendering the same. No service charge will be payable for such registration of transfer
or exchange.


 


b)  
Investment Representations. This Note has been issued subject to certain investment representations of the original Holder
set forth in the Exchange Agreement and may be transferred or exchanged only in compliance with the Exchange Agreement and applicable
federal and state securities laws and regulations.


 


c)  
Reliance on Note Register. Prior to due presentment for transfer to the Company of this Note, the Company and any agent
of the Company may treat the Person in whose name this Note is duly registered on the Note Register as the owner hereof for the
purpose of receiving payment as herein provided and for all other purposes, whether or not this Note is overdue, and neither the
Company nor any such agent shall be affected by notice to the contrary.


 


Section
4.Conversion.


 


a)  
Voluntary Conversion. At any time after the Original Issue Date until this Note is no longer outstanding, this Note shall
be convertible, in whole or in part, into shares of Common Stock at the option of the Holder, at any time and from time to time
(subject to the conversion limitations set forth in Section 4(d) hereof). The Holder shall effect conversions by delivering
to the Company a Notice of Conversion, the form of which is attached hereto as Annex A (each, a “Notice of Conversion”),
specifying therein the principal amount of this Note to be converted and the date on which such conversion shall be effected (such
date, the “Conversion Date”). If no Conversion Date is specified in a Notice of Conversion, the Conversion
Date shall be the date that such Notice of Conversion is deemed delivered hereunder. No ink-original Notice of Conversion shall
be required, nor shall any medallion guarantee (or other type of guarantee or notarization) of any Notice of Conversion form be
required. To effect conversions hereunder, the Holder shall not be required to physically surrender this Note to the Company unless
the entire principal amount of this Note, plus all accrued and unpaid interest thereon, has been so converted. Conversions hereunder
shall have the effect of lowering the outstanding principal amount of this Note in an amount equal to the applicable conversion.
The Holder and the Company shall maintain records showing the principal amount(s) converted and the date of such conversion(s).
The Company may deliver an objection to any Notice of Conversion within one (1) Business Day of delivery of such Notice of Conversion.
In the event of any dispute or discrepancy, the records of the Holder shall be controlling and determinative in the absence of
manifest error. The Holder, and any assignee by acceptance of this Note, acknowledge and agree that, by reason of the provisions
of this paragraph, following conversion of a portion of this Note, the unpaid and unconverted principal amount of this Note may
be less than the amount stated on the face hereof.


 






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b)  
Conversion Price. The conversion price in effect on any Conversion Date shall be equal to one and one-half cents ($0.015),
subject adjustment herein (the “Conversion Price”).


 


c)  
All such determinations to be appropriately adjusted for any stock dividend, stock split, stock combination, reclassification
or similar transaction that proportionately decreases or increases the Common Stock during such measuring period. Nothing herein
shall limit a Holder’s right to pursue actual damages or declare an Event of Default pursuant to Section 6 hereof and the
Holder shall have the right to pursue all remedies available to it hereunder, at law or in equity including, without limitation,
a decree of specific performance and/or injunctive relief. The exercise of any such rights shall not prohibit the Holder from
seeking to enforce damages pursuant to any other Section hereof or under applicable law.


 


d)  
Holder’s Conversion Limitations. The Company shall not effect any conversion of this Note, and a Holder shall
not have the right to convert any portion of this Note, to the extent that after giving effect to the conversion set forth on
the applicable Notice of Conversion, the Holder (together with the Holder’s Affiliates, and any Persons acting as a group
together with the Holder or any of the Holder’s Affiliates) 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 shall include the number of shares of Common Stock issuable upon conversion of this Note
with respect to which such determination is being made, but shall exclude the number of shares of Common Stock which are issuable
upon (i) conversion of the remaining, unconverted principal amount of this Note beneficially owned by the Holder or any of its
Affiliates and (ii) exercise or conversion of the unexercised or unconverted portion of any other securities of the Company subject
to a limitation on conversion or exercise analogous to the limitation contained herein (including, without limitation, any other
Notes or the Warrants) beneficially owned by the Holder or any of its Affiliates.  Except as set forth in the preceding sentence,
for purposes of this Section 4(d), beneficial ownership shall be calculated in accordance with Section 13(d) of the Exchange Act
and the rules and regulations promulgated thereunder. To the extent that the limitation contained in this Section 4(d) applies,
the determination of whether this Note is convertible (in relation to other securities owned by the Holder together with any Affiliates)
and of which principal amount of this Note is convertible shall be in the sole discretion of the Holder, and the submission of
a Notice of Conversion shall be deemed to be the Holder’s determination of whether this Note may be converted (in relation
to other securities owned by the Holder together with any Affiliates) and which principal amount of this Note is convertible,
in each case subject to the Beneficial Ownership Limitation. To ensure compliance with this restriction, the Holder will be deemed
to represent to the Company each time it delivers a Notice of Conversion that such Notice of Conversion has not violated the restrictions
set forth in this paragraph 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 4(d), in determining the number of outstanding shares of Common Stock, the Holder may rely on the number of outstanding
shares of Common Stock as stated in the most recent of the following: (i) the Company’s most recent periodic or annual report
filed with the Commission, as the case may be, (ii) a more recent public announcement by the Company, or (iii) a more recent written
notice by the Company or the Company’s 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 two Trading Days 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 Note, by the Holder
or its Affiliates since the date as of which such number of outstanding shares of Common Stock was reported. “Beneficial
Ownership Limitation” shall be 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 conversion of this Note held by the Holder. The Holder, upon not less
than 61 days’ prior notice to the Company, may increase or decrease the Beneficial Ownership Limitation provisions of this
Section 4(d), 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 conversion of this Note held
by the Holder and the Beneficial Ownership Limitation provisions of this Section 4(d) shall continue to apply. Any such increase
or decrease will not be effective until the 61st day after such notice is delivered to the Company. The Beneficial Ownership Limitation
provisions of this paragraph shall be construed and implemented in a manner otherwise than in strict conformity with the terms
of this Section 4(d) to correct this paragraph (or any portion hereof) which may be defective or inconsistent with the intended
Beneficial Ownership Limitation contained herein 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 Note.


 






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e)
Mechanics of Conversion.


 


i.  
Conversion Shares Issuable Upon Conversion of Principal Amount. The number of Conversion Shares issuable upon a conversion
hereunder shall be determined by the quotient obtained by dividing (x) the outstanding principal amount of this Note to be converted
by (y) the Conversion Price.


 


ii.  
Delivery of Certificate Upon Conversion. Not later than three (3) Trading Days after each Conversion Date (the “Share
Delivery Date”), the Company shall deliver, or cause to be delivered, to the Holder a certificate or certificates representing
the Conversion Shares being acquired upon the conversion of this Note. Subject to applicable securities laws, the Conversion Shares
shall bear a restrictive legend in the following form, as appropriate:


 


“NEITHER
THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE EXERCISABLE
HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS.  THE SECURITIES
MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE
SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR (B) AN OPINION OF COUNSEL (WHICH COUNSEL SHALL BE SELECTED BY THE
HOLDER), IN A GENERALLY ACCEPTABLE FORM, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS SOLD PURSUANT TO RULE
144 OR RULE 144A UNDER SAID ACT.”


 


iii.  
Failure to Deliver Certificates. If, in the case of any Notice of Conversion, such certificate or certificates are not
delivered to or as directed by the applicable Holder by the Share Delivery Date, the Holder shall be entitled to elect by written
notice to the Company at any time on or before its receipt of such certificate or certificates, to rescind such Conversion, in
which event the Company shall promptly return to the Holder any original Note delivered to the Company and the Holder shall promptly
return to the Company the Common Stock certificates issued to such Holder pursuant to the rescinded Conversion Notice.


 






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iv.  
Obligation Absolute; Partial Liquidated Damages. The Company’s obligations to issue and deliver the Conversion Shares
upon conversion of this Note in accordance with the terms hereof are absolute and unconditional, irrespective of any action or
inaction by the Holder to enforce the same, any waiver or consent with respect to any provision hereof, the recovery of any judgment
against any Person or any action to enforce the same, or any setoff, counterclaim, recoupment, limitation or termination, or any
breach or alleged breach by the Holder or any other Person of any obligation to the Company or any violation or alleged violation
of law by the Holder or any other Person, and irrespective of any other circumstance which might otherwise limit such obligation
of the Company to the Holder in connection with the issuance of such Conversion Shares; provided, however, that
such delivery shall not operate as a waiver by the Company of any such action the Company may have against the Holder. In the
event the Holder of this Note shall elect to convert any or all of the outstanding principal amount hereof, the Company may not
refuse conversion based on any claim that the Holder or anyone associated or affiliated with the Holder has been engaged in any
violation of law, agreement or for any other reason, unless an injunction from a court, on notice to Holder, restraining and or
enjoining conversion of all or part of this Note shall have been sought and obtained, and the Company posts a surety bond for
the benefit of the Holder in the amount of 150% of the outstanding principal amount of this Note, which is subject to the injunction,
which bond shall remain in effect until the completion of arbitration/litigation of the underlying dispute and the proceeds of
which shall be payable to the Holder to the extent it obtains judgment. In the absence of such injunction, the Company shall issue
Conversion Shares or, if applicable, cash, upon a properly noticed conversion. If the Company fails for any reason to deliver
to the Holder such certificate or certificates pursuant to Section 4(c)(ii) by the 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 principal amount being converted, $10 per
Trading Day (increasing to $20 per Trading Day on the fifth (5th) Trading Day after such liquidated damages begin to
accrue) for each Trading Day after such Share Delivery Date until such certificates are delivered or Holder rescinds such conversion.
Nothing herein shall limit a Holder’s right to pursue actual damages or declare an Event of Default pursuant to Section
6 hereof for the Company’s failure to deliver Conversion Shares within the period specified herein and the Holder shall
have the right to pursue all remedies available to it hereunder, at law or in equity including, without limitation, a decree of
specific performance and/or injunctive relief. The exercise of any such rights shall not prohibit the Holder from seeking to enforce
damages pursuant to any other Section hereof or under applicable law.


 






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v.  
Compensation for Buy-In on Failure to Timely Deliver Certificates Upon Conversion. In addition to any other rights available
to the Holder, if the Company fails for any reason to deliver to the Holder such certificate or certificates by the Share Delivery
Date pursuant to Section 4(c)(ii), and if after such Share Delivery Date the Holder is required by its brokerage firm 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 Conversion Shares which the Holder was entitled to receive upon the
conversion relating to such Share Delivery Date (a “Buy-In”), then the Company shall (A) pay in cash to the
Holder (in addition to any other remedies available to or elected by the Holder) the amount, if any, by which (x) the Holder’s
total purchase price (including any brokerage commissions) for the Common Stock so purchased exceeds (y) the product of (1) the
aggregate number of shares of Common Stock that the Holder was entitled to receive from the conversion at issue multiplied by
(2) the actual sale price at which the sell order giving rise to such purchase obligation was executed (including any brokerage
commissions) and (B) at the option of the Holder, either reissue (if surrendered) this Note in a principal amount equal to the
principal amount of the attempted conversion (in which case such conversion shall be deemed rescinded) or deliver to the Holder
the number of shares of Common Stock that would have been issued if the Company had timely complied with its delivery requirements
under Section 4(c)(ii). 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 conversion of this Note with respect to which the actual sale price of the Conversion Shares
(including any brokerage commissions) giving rise to such purchase obligation was a total 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 certificates representing shares of Common Stock upon conversion of this Note as required pursuant to
the terms hereof.


 


vi.  
Fractional Shares. No fractional shares or scrip representing fractional shares shall be issued upon the conversion of
this Note. As to any fraction of a share which the Holder would otherwise be entitled to purchase upon such conversion, 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 Conversion Price or round up to the next whole share.


 


vii.  
Transfer Taxes and Expenses. The issuance of certificates for shares of the Common Stock on conversion of this Note shall
be made without charge to the Holder hereof for any documentary stamp or similar taxes that may be payable in respect of the issue
or delivery of such certificates, provided that, the Company shall not be required to pay any tax that may be payable in respect
of any transfer involved in the issuance and delivery of any such certificate upon conversion in a name other than that of the
Holder of this Note so converted and the Company shall not be required to issue or deliver such certificates unless or until the
Person or Persons requesting the issuance thereof shall have paid to the Company the amount of such tax or shall have established
to the satisfaction of the Company that such tax has been paid. The Company shall pay all Transfer Agent fees required for same-day
processing of any Notice of Conversion.


 






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Section
5.Certain Adjustments.


 


a)
Stock Dividends and Stock Splits. If the Company, at any time while this Note is outstanding: (i) pays a stock dividend
or otherwise makes a distribution or distributions payable in shares of Common Stock on shares of Common Stock or any Common Stock
Equivalents (which, for avoidance of doubt, shall not include any shares of Common Stock issued by the Company upon conversion
of, the Notes), (ii) subdivides outstanding shares of Common Stock into a larger number of shares, (iii) combines (including by
way of a reverse stock split) outstanding shares of Common Stock into a smaller number of shares or (iv) issues, in the event
of a reclassification of shares of the Common Stock, any shares of capital stock of the Company, then the Conversion Price shall
be multiplied by a fraction of which the numerator shall be the number of shares of Common Stock (excluding any treasury shares
of the Company) outstanding immediately before such event, and of which the denominator shall be the number of shares of Common
Stock outstanding immediately after such event. Any adjustment made pursuant to this Section 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)
Change of Control Transaction. Upon the occurrence of any Change of Control Transaction, any successor entity shall succeed
to, and be substituted for (so that from and after the date of such Change of Control Transaction, the provisions of this Note
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 Note with the same effect as if such successor entity
had been named as the Company herein. Upon consummation of the Change of Control Transaction, the successor entity shall deliver
to the Holder confirmation that there shall be issued upon conversion or redemption of the shares of this Note at any time after
the consummation of the Fundamental Transaction, in lieu of the shares of Common Stock (or other securities, cash, assets or other
property) purchasable upon the conversion or redemption of this Note prior to such Change of Control Transaction, such publicly
traded shares of common stock (or their equivalent) of the successor entity, as adjusted in accordance with the provisions of
this Note. The provisions of this Section shall apply similarly and equally to successive Change of Control Transactions and shall
be applied without regard to any limitations on the conversion or redemption of this Note.


 


c)
Calculations. All calculations under this Section 5 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 5, 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 any treasury shares of the Company) issued
and outstanding.


 


d)
Notice to the Holder. Whenever the Conversion Price is adjusted pursuant to any provision of this Section 5, the Company
shall promptly deliver to each Holder a notice setting forth the Conversion Price after such adjustment and setting forth a brief
statement of the facts requiring such adjustment.


 






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Section
6.Events of Default.


 


a)  
“Event of Default” means, wherever used herein, any of the following events (whatever the reason for such event
and whether such event shall be voluntary or involuntary or effected by operation of law or pursuant to any judgment, decree or
order of any court, or any order, rule or regulation of any administrative or governmental body):


 


i.  
any default in the payment of the principal amount of this Note and other amounts owing to the Holder of this Note, as and when
the same shall become due and payable (whether on a Conversion Date or the Maturity Date or by acceleration or otherwise), which
default, is not cured within 7 Trading Days;


 


ii.  
the Company shall fail to observe or perform any other material covenant or material agreement contained in the Notes which failure
is not cured, if possible to cure, within the earlier to occur of (A) 5 Trading Days after notice of such failure sent by the
Holder or by any other Holder to the Company and (B) 10 Trading Days after the Company has become or should have become aware
of such failure;


 


iii.  
a material default or event of default (subject to any grace or cure period provided in the applicable agreement, document or
instrument) shall occur under (A) any of the Transaction Documents or (B) any other material agreement, lease, document or instrument
to which the Company or any Subsidiary is obligated (and not covered by clause (vi) below);


 


iv.  
any material representation or warranty made in this Note, any other Transaction Documents, any written statement pursuant hereto
or thereto or any other report, financial statement or certificate made or delivered to the Holder or any other Holder shall be
untrue or incorrect in any material respect as of the date when made or deemed made;


 


v.  
the Company or any Significant Subsidiary (as such term is defined in Rule 1-02(w) of Regulation S-X) shall be subject to a Bankruptcy
Event;


 


vi.  
the Company or any Subsidiary shall default on any of its obligations under any mortgage, credit agreement or other facility,
indenture agreement, factoring agreement or other instrument under which there may be issued, or by which there may be secured
or evidenced, any indebtedness for borrowed money or money due under any long term leasing or factoring arrangement that (a) involves
an obligation greater than $200,000, whether such indebtedness now exists or shall hereafter be created, and (b) results in such
indebtedness becoming or being declared due and payable prior to the date on which it would otherwise become due and payable;


 






    	 	11	 



     


    




 


vii.  
the Company shall be a party to any Change of Control Transaction or shall agree to sell or dispose of all or substantially all
of its assets in one transaction or a series of related transactions (whether or not such sale would constitute a Change of Control
Transaction);


 


viii.  
if the Company or any Significant Subsidiary shall: (i) apply for or consent to the appointment of a receiver, trustee, custodian
or liquidator of it or any of its properties, (ii) admit in writing its inability to pay its debts as they mature, (iii) make
a general assignment for the benefit of creditors, (iv) be adjudicated a bankrupt or insolvent or be the subject of an order for
relief under Title 11 of the United States Code or any bankruptcy, reorganization, insolvency, readjustment of debt, dissolution
or liquidation law or statute of any other jurisdiction or foreign country, or (v) file a voluntary petition in bankruptcy, or
a petition or an answer seeking reorganization or an arrangement with creditors or to take advantage or any bankruptcy, reorganization,
insolvency, readjustment of debt, dissolution or liquidation law or statute, or an answer admitting the material allegations of
a petition filed against it in any proceeding under any such law, or (vi) take or permit to be taken any action in furtherance
of or for the purpose of effecting any of the foregoing;


 


ix.  
if any order, judgment or decree shall be entered, without the application, approval or consent of the Company or any Significant
Subsidiary, by any court of competent jurisdiction, approving a petition seeking liquidation or reorganization of the Company
or any Subsidiary, or appointing a receiver, trustee, custodian or liquidator of the Company or any Subsidiary, or of all or any
substantial part of its assets, and such order, judgment or decree shall continue unstayed and in effect for any period of sixty
(60) days;


 


x.  
the occurrence of any levy upon or seizure or attachment of, or any uninsured loss of or damage to, any property of the Company
or any Subsidiary having an aggregate fair value or repair cost (as the case may be) in excess of $200,000 individually or in
the aggregate, and any such levy, seizure or attachment shall not be set aside, bonded or discharged within thirty (30) days after
the date thereof; or


 


xi.  
any monetary judgment, writ or similar final process shall be entered or filed against the Company, any subsidiary or any of their
respective property or other assets for more than $200,000, and such judgment, writ or similar final process shall remain unvacated,
unbonded or unstayed for a period of 45 calendar days.


 






    	 	12	 



     


    




 


b)
Remedies Upon Event of Default. If any Event of Default occurs, then the outstanding principal amount of this Note, and
other amounts owing in respect thereof excluding liquidated damages through the date of acceleration, shall become, at the Holder’s
election, immediately due and payable in cash at the Mandatory Default Amount. After the occurrence of any Event of Default that
results in the eventual acceleration of this Note, the Note shall accrue interest at an interest rate equal to the lesser of 1.5%
per month (18% per annum) or the maximum rate permitted under applicable law (the “Default Rate”). The Default
Rate shall be computed from the occurrence of the Event of Default until the date upon which the Event of Default is cured. Should
the Event of Default be cured, such Interest calculated at the Default Rate shall be immediately added to the principal due under
the Note, if not previously paid, without any action on the part of the Holder. Upon the payment in full of the Mandatory Default
Amount, the Holder shall promptly surrender this Note to or as directed by the Company. In connection with such acceleration described
herein, the Holder need not provide, and the Company hereby waives, any presentment, demand, protest or other notice of any kind,
and the Holder may immediately and without expiration of any grace period enforce any and all of its rights and remedies hereunder
and all other remedies available to it under applicable law. Such acceleration may be rescinded and annulled by Holder at any
time prior to payment hereunder and the Holder shall have all rights as a holder of the Note until such time, if any, as the Holder
receives full payment pursuant to this Section 6(b). No such rescission or annulment shall affect any subsequent Event of Default
or impair any right consequent thereon. Additionally, upon an Event of Default, this Note shall be deemed automatically amended
and restated to reflect the new principal amount owed to the Holder, inclusive of the outstanding principal amount of this Note,
accrued interest as set forth in Section 2(a), and other amounts owing in respect thereof excluding liquidated damages through
the date of acceleration. In such event, at the Holder’s option, the Company shall issue to the Holder such an amended and
restated Note within five (5) business days of the acceleration.


 


Section
7.Intentionally Omitted.


 


Section
8.Miscellaneous.


 


a)  
Notices. Any and all notices or other communications or deliveries to be provided by the Holder hereunder, including, without
limitation, any Notice of Conversion, shall be in writing and delivered personally, by facsimile, or sent by a nationally recognized
overnight courier service, addressed to the Company, at the address set forth above, or such other facsimile number or address
as the Company may specify for such purposes by notice to the Holder delivered in accordance with this Section 7(a). Any and all
notices or other communications or deliveries to be provided by the Company hereunder shall be in writing and delivered personally,
by facsimile, or sent by a nationally recognized overnight courier service addressed to each Holder at the facsimile number or
address of the Holder appearing on the books of the Company, or if no such facsimile number or address appears on the books of
the Company, at the principal place of business of such Holder, as set forth in the Exchange Agreement. Any notice or other communication
or deliveries hereunder shall be deemed given and effective on the earliest of (i) the date of transmission, if such notice or
communication is delivered via facsimile at the facsimile number set forth on the signature pages attached hereto prior to 5:30
p.m. (Eastern time) on any date, (ii) the next Trading Day after the date of transmission, if such notice or communication is
delivered via facsimile at the facsimile number set forth on the signature pages attached hereto on a day that is not a Trading
Day or later than 5:30 p.m. (Eastern time) on any Trading Day, (iii) the second Trading Day following the date of mailing, if
sent by U.S. nationally recognized overnight courier service or (iv) upon actual receipt by the party to whom such notice is required
to be given.


 






    	 	13	 



     


    




 


b)  
Absolute Obligation. Except as expressly provided herein, no provision of this Note shall alter or impair the obligation
of the Company, which is absolute and unconditional, to pay the principal of, and liquidated damages, as applicable, on this Note
at the time, place, and rate, and in the coin or currency, herein prescribed. This Note is a direct debt obligation of the Company.


 


c)  
Lost or Mutilated Note. If this Note shall be mutilated, lost, stolen or destroyed, the Company shall execute and deliver,
in exchange and substitution for and upon cancellation of a mutilated Note, or in lieu of or in substitution for a lost, stolen
or destroyed Note, a new Note for the principal amount of this Note so mutilated, lost, stolen or destroyed, but only upon receipt
of evidence of such loss, theft or destruction of such Note, and of the ownership hereof, reasonably satisfactory to the Company.


 


d)  
Governing Law. All questions concerning the construction, validity, enforcement and interpretation of this Note shall be
governed by and construed and enforced in accordance with the internal laws of the State of Nevada, without regard to the principles
of conflict of laws thereof. Each party agrees that all legal proceedings concerning the interpretation, enforcement and defense
of the transactions contemplated by any of the Transaction Documents (whether brought against a party hereto or its respective
Affiliates, directors, officers, shareholders, employees or agents) shall be commenced in the state and federal courts sitting
in the State of Nevada, (the “Nevada Courts”). Each party hereto hereby irrevocably submits to the exclusive
jurisdiction of the Nevada Courts 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 suit, action or proceeding, any claim that it is not personally subject to
the jurisdiction of such Nevada Courts, or such Nevada Courts are improper or inconvenient venue for such proceeding. Each party
hereby irrevocably waives personal service of process and consents to process being served in any such suit, 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 Note 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 applicable law. Each party hereto hereby irrevocably waives, to the fullest extent permitted by applicable
law, any and all right to trial by jury in any legal proceeding arising out of or relating to this Note or the transactions contemplated
hereby. If any party shall commence an action or proceeding to enforce any provisions of this Note, then the prevailing party
in such action or proceeding shall be reimbursed by the other party for its attorneys fees and other costs and expenses incurred
in the investigation, preparation and prosecution of such action or proceeding.


 






    	 	14	 



     


    




 


e)  
Waiver. Any waiver by the Company or the Holder of a breach of any provision of this Note shall not operate as or be construed
to be a waiver of any other breach of such provision or of any breach of any other provision of this Note. The failure of the
Company or the Holder to insist upon strict adherence to any term of this Note on one or more occasions shall not be considered
a waiver or deprive that party of the right thereafter to insist upon strict adherence to that term or any other term of this
Note on any other occasion. Any waiver by the Company or the Holder must be in writing.


 


f)   
Severability. If any provision of this Note is invalid, illegal or unenforceable, the balance of this Note shall remain
in effect, and if any provision is inapplicable to any Person or circumstance, it shall nevertheless remain applicable to all
other Persons and circumstances. If it shall be found that any interest or other amount deemed interest due hereunder violates
the applicable law governing usury, the applicable rate of interest due hereunder shall automatically be lowered to equal the
maximum rate of interest permitted under applicable law. The Company covenants (to the extent that it may lawfully do so) that
it shall not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay,
extension or usury law or other law which would prohibit or forgive the Company from paying all or any portion of the principal
of or interest on this Note as contemplated herein, wherever enacted, now or at any time hereafter in force, or which may affect
the covenants or the performance of this Note, and the Company (to the extent it may lawfully do so) hereby expressly waives all
benefits or advantage of any such law, and covenants that it will not, by resort to any such law, hinder, delay or impede the
execution of any power herein granted to the Holder, but will suffer and permit the execution of every such as though no such
law has been enacted.


 






    	 	15	 



     


    

 


g)  
Remedies, Characterizations, Other Obligations, Breaches and Injunctive Relief.  The remedies provided in this Note
shall be cumulative and in addition to all other remedies available under this Note and any of the other Transaction Documents
at law or in equity (including a decree of specific performance and/or other injunctive relief), and nothing herein shall limit
the Holder’s right to pursue actual and consequential damages for any failure by the Company to comply with the terms of
this Note.  The Company covenants to the Holder that there shall be no characterization concerning this instrument other
than as expressly provided herein. Amounts set forth or provided for herein with respect to payments, conversion and the like
(and the computation thereof) shall be the amounts to be received by the Holder and shall not, except as expressly provided herein,
be subject to any other obligation of the Company (or the performance thereof). The Company acknowledges that a breach by it of
its obligations hereunder will cause irreparable harm to the Holder and that the remedy at law for any such breach may be inadequate.
The Company therefore agrees that, in the event of any such breach or threatened breach, the Holder shall be entitled, in addition
to all other available remedies, to an injunction restraining any such breach or any such threatened breach, without the necessity
of showing economic loss and without any bond or other security being required. The Company shall provide all information and
documentation to the Holder that is requested by the Holder to enable the Holder to confirm the Company’s compliance with
the terms and conditions of this Note.


 


h)  
Next Business Day. Whenever any payment or other obligation hereunder shall be due on a day other than a Business Day,
such payment shall be made on the next succeeding Business Day.


 


i)   
Headings. The headings contained herein are for convenience only, do not constitute a part of this Note and shall not be
deemed to limit or affect any of the





 


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


 


(Signature
Pages Follow)


 




    	 	16	 



     


    

 


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


 





	 	AVANT
    DIAGNOSTICS, inc.
	 	 	 
	 	By:	/s/
        Scott VanderMeer

        

	 	Name:	Scott
        VanderMeer 


        

	 	Title:	Interim Chief Financial Officer
	 	 	Facsimile No. for delivery
    of Notices:




 




    	 	17	 



     


    

 


ANNEX
A


 


NOTICE
OF CONVERSION





 


The
undersigned hereby elects to convert principal under the Convertible Promissory Note due November 25, 2019 of Avant Diagnostics,
Inc. (the “Company”), into shares of common stock (the “Common Stock”), of the Company according
to the conditions hereof, as of the date written below. If shares of Common Stock are to be issued in the name of a person other
than the undersigned, the undersigned will pay all transfer taxes payable with respect thereto and is delivering herewith such
certificates and opinions as reasonably requested by the Company in accordance therewith. No fee will be charged to the holder
for any conversion, except for such transfer taxes, if any.


 


By
the delivery of this Notice of Conversion the undersigned represents and warrants to the Company that its ownership of the Common
Stock does not exceed the amounts specified under Section 4 of this Note, as determined in accordance with Section 13(d) of the
Exchange Act.


 


The
undersigned agrees to comply with the prospectus delivery requirements under the applicable securities laws in connection with
any transfer of the aforesaid shares of Common Stock.


 





	Conversion
    calculations:	 
		Date to Effect Conversion:
	 	 
		Principal Amount of Note to be Converted:
	 	 
		Number of shares of Common Stock to be issued:
	 	 
		Signature:
	 	 
		Name:
	 	 
	 	DWAC Instructions:
	 	 
	 	Broker
    No:	 
	 	Account
    No:	 




 






    	 	18	 



     


    








Schedule
1





 


CONVERSION
SCHEDULE


 


This
Convertible Promissory Note due on November 25, 2019 in the original principal amount of $_________ is issued by Avant
Diagnostics, Inc. This Conversion Schedule reflects conversions made under Section 4 of the above referenced Note.


 


Dated:                                     


 


	Date of Conversion

(or for first entry,

Original Issue Date)	 	 	
Amount of Conversion
	 	 	Aggregate Principal

                                                                                Amount Remaining

Subsequent to Conversion 
(or original Principal Amount)
	 	Company Attest
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 



 


 


19