Exhibit 4.1


 





	
        NUMBER

        U-__________
	 	 	 	UNITS


 


	SEE REVERSE FOR CERTAIN 

DEFINITIONS	CHARDAN HEALTHCARE ACQUISITION CORP. 	 


 


CUSIP


 


UNITS CONSISTING OF ONE
SHARE OF COMMON STOCK AND


ONE WARRANT, EACH WARRANT
ENTITLING THE HOLDER TO PURCHASE ONE-HALF OF ONE SHARE OF COMMON STOCK


 


THIS CERTIFIES THAT ______________________________________________________________________________________________


 


is the owner of __________________________________________________________________________________
Units.


 


Each Unit (“Unit”)
consists of one share of common stock, par value $.0001 per share, of Chardan Healthcare Acquisition Corp., a Delaware corporation
(the “Company”), and one warrant. Each warrant entitles the holder to purchase one-half of one share of common stock
of the Company at $11.50 per full share (subject to adjustment), upon the later to occur of (i) the Company’s completion
of a merger, share exchange, asset acquisition, stock purchase, recapitalization, reorganization or other similar business combination,
with one or more target businesses (a “Business Combination”) or (ii) 12 months from the closing of the Company’s
initial public offering (the “IPO”). Each warrant expires 5 years after the completion of our initial Business Combination,
at 5:00 p.m., New York City time, or earlier upon redemption or liquidation.


 


The common stock and warrant(s)
comprising the Unit(s) represented by this certificate are not transferable separately until the 90th day after the date of the
prospectus relating to the IPO, unless Chardan Capital Markets, LLC informs the Company of its decision to allow earlier separate
trading, provided that the Company has filed with the Securities and Exchanges Commission a Current Report on Form 8-K, which includes
an audited balance sheet reflecting the Company’s receipt of the gross proceeds of the IPO.


 


The terms of the warrants are governed
by a warrant agreement (the “Warrant Agreement”), dated as of [·],
2018, between the Company and Continental Stock Transfer & Trust Company, as the warrant agent, and are subject to the terms
and provisions contained therein, all of which terms and provisions the holder of this certificate consents to by acceptance hereof.
Copies of the Warrant Agreement are on file at the office of the warrant agent at1 State Street, 20th Floor, New York, New York
10004, and are available to any warrant holder on written request and without cost.


 


This certificate is not valid unless
countersigned by the Transfer Agent and Registrar of the Company.


 


Witness the facsimile seal of the
Company and the facsimile signatures of its duly authorized officers.


 


[Corporate
Seal]


 


This Unit Certificate shall be
governed and construed in accordance with the internal laws of the State of New York, without regard to conflicts of laws principles
thereof.


 


	By:	 	 	 
	 	 	 	 
	 	Chairman	 	Secretary


 




    	 



     


    

 


Chardan Healthcare Acquisitions Corp.


 


The Company will furnish
without charge to each stockholder who so requests, a statement of the powers, designations, preferences and relative, participating,
optional or other special rights of each class of shares or series thereof of the Company and the qualifications, limitations,
or restrictions of such preferences and/or rights.


 


The following abbreviations,
when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according
to applicable laws or regulations:


 


	TEN COM –	as tenants in common	UNIF GIFT MIN ACT - _____ Custodian ______
	TEN ENT –	as tenants by the entireties	(Cust)                (Minor)
	JT TEN –	as joint tenants with right of 	under Uniform Gifts
    to Minors
	 	survivorship and not as	Act ______________
	 	tenants in common	(State)


 


Additional abbreviations may also be used
though not in the above list.


 


For value received, ___________________________
hereby sells, assigns and transfers unto


 


PLEASE INSERT SOCIAL SECURITY OR OTHER


IDENTIFYING NUMBER OF ASSIGNEE


 


	 	 


 


	 
	(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)
	 
	 
	 
	 
	 
	 	Units


 


represented by the within Certificate,
and do hereby irrevocably constitute and appoint


 


_________________________________________________________________________________________________Attorney
to transfer the said Units on the books of the within named Company with full power of substitution in the premises.


 


Dated                                                


 


	 	 	 
	 	Notice:	The signature to this assignment must correspond with the name as written upon the face of the certificate in every particular, without alteration or enlargement or any change whatever.


 


Signature(s) Guaranteed:


 


	 	 
	THE SIGNATURE(S) SHOULD BE GUARANTEED
    BY AN ELIGIBLE GUARANTOR INSTITUTION	 
	(BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS
    AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO SEC RULE 17Ad-15).	 


 


The holder of this certificate shall be entitled to receive
funds with respect to the underlying share of common stock from the trust account established in connection with the Company’s
initial public offering only in the event of the Company’s liquidation upon failure to consummate a business combination
within the required time period set forth in the Company’s Amended and Restated Certificate of Incorporation (the “Certificate”),
as the same may be amended from time to time, or if the holder seeks to convert his or her respective shares of common stock underlying
the Unit upon consummation of such business combination or in connection with certain amendments to the Certificate. In no other
circumstances shall the holder have any right or interest of any kind in or to the trust account.