FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Dunkerley Hugh D P   2. Issuer Name and Ticker or Trading Symbol ChromaDex Corp. [CDXC.OB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 10142 BEVERYLY DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 05/20/2010 (Street) HUNTINGTON BEACH, CA 92646 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Employee Stock Options (right to buy)

$ 1.545

05/20/2010

A

127,400

05/20/2011(1)

05/20/2020

Common Stock

127,400

$ 0

127,400

D

Employee Stock Options (right to buy)

$ 1.545

05/20/2010

A

127,400

05/20/2011(2)

05/20/2020

Common Stock

127,400

$ 0

127,400

D

Employee Stock Options (right to buy)

$ 1.545

05/20/2010

A

75,000

(3)

05/20/2020

Common Stock

75,000

$ 0

75,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Dunkerley Hugh D P 10142 BEVERYLY DRIVE HUNTINGTON BEACH, CA 92646	X

Signatures

Hugh D P Dunkerley		05/24/2010
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Options vest 50% over two years beginning on May 20, 2011.
(2)	Options vest 50 over two years beginning on May 20, 2011; provided further that, these options are only exercisable based on the percentage of warrants exercised as of such vesting date that were issued under that certian Subscription Agreement, dated as of April 22, 2010, between the Issuer and the subscribers named therein. Specifically, if 25% to 49.9% of such warrant have been exercised, then 25% of these options are exercisable; if 50% to 74.9% of such warrant have been exercised, then 50% of these options are exercisable; and if 75% or more of such warrants have been exercised, then 100% of these options are exercisable.
(3)	Options vest 1/12 every month for twelve months and will be fully vested May 20, 2011

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