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CELLECTAR BIOSCIENCES, INC.

3301 Agriculture Drive

Madison, WI 53716

August 11, 2014

Via EDGAR

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Attention: Jeffrey P. Riedler

 Re: Cellectar Biosciences, Inc.

Registration Statement on Form S-1,

File No. 333-196091

Ladies and Gentlemen:

Pursuant to Rule 461(a)
under the Securities Act of 1933, as amended, Cellectar Biosciences, Inc., a Delaware corporation (the “Company”),
hereby requests that the effective date of the Company’s Registration Statement on Form S-1 (Registration No. 333-196091),
as amended, be accelerated so that the Registration Statement will become effective at 4:00 p.m. on August 13, 2014, or as soon
as practicable thereafter.

The Company hereby acknowledges
that:

 (a) should the Commission or the staff, acting pursuant to delegated authority, declare the Registration
Statement effective, it does not foreclose the Commission from taking any other action with respect to the filing;

 (b) the action of the Commission or the staff, acting pursuant to delegated authority, in declaring the
filing effective, does not relieve the Company from its full responsibility for the adequacy and accuracy of the disclosure in
the filing; and

 (c) the Company may not assert staff comments and the declaration of effectiveness as a defense in any
proceeding initiated by the Commission or any person under the federal securities laws of the United States.

    Very truly yours,

    CELLECTAR BIOSCIENCES, INC.

    By:
    /s/ Simon Pedder

    Simon Pedder, President and Chief Executive Officer