Catalog No. Size PriceQuantity
M12150-2 2mg solid $590
M12150-10 10mg solid $2,360


DM3 (Maytansinoid DM3) is a maytansine analog bearing disulfide or thiol groups and a tubulin inhibitor, and is a cytotoxic moiety of antibody-drug conjugates (ADCs).

Product information

CAS Number: 796073-54-6

Molecular Weight: 766.34

Formula: C37H52ClN3O10S


Maytansinoid DM3

Chemical Name: (1S, 2R, 3S, 5S, 6S, 20R, 21S)-11-chloro-21-hydroxy-12, 20-dimethoxy-2, 5, 9, 16-tetramethyl-8, 23-dioxo-4, 24-dioxa-9, 22-diazatetracyclo[, .0, ]hexacosa-10, 12, 14(26), 16, 18-pentaen-6-yl (2S)-2-(N-methyl-4-sulfanylpentanamido)propanoate

Smiles: C[C@@]12O[C@H]1[C@H](C)[C@@H]1C[C@@](O)(NC(=O)O1)[C@@H](C=CC=C(C)CC1C=C(OC)C(Cl)=C(C=1)N(C)C(=O)C[C@@H]2OC(=O)[C@H](C)N(C)C(=O)CCC(C)S)OC |c:19,t:17|


InChi: InChI=1S/C37H52ClN3O10S/c1-20-11-10-12-28(48-9)37(46)19-27(49-35(45)39-37)22(3)33-36(5,51-33)29(50-34(44)23(4)40(6)30(42)14-13-21(2)52)18-31(43)41(7)25-16-24(15-20)17-26(47-8)32(25)38/h10-12,16-17,21-23,27-29,33,46,52H,13-15,18-19H2,1-9H3,(H,39,45)/b12-10-,20-11-/t21?,22-,23+,27+,28-,29+,33+,36+,37+/m1/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200


  1. Chen H, et al. Tubulin Inhibitor-Based Antibody-Drug Conjugates for Cancer Therapy. Molecules. 2017 Aug 1;22(8).

Products are for research use only. Not for human use.

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