Cucurbitacin IIa

Catalog No. Size PriceQuantity
M12735-2 2mg solid $135
M12735-10 10mg solid $405


Cucurbitacin IIa is a triterpene isolated from Hemsleya amalils Diels, induces apoptosis of cancer cells, reduces expression of survivin, reduces phospho-Histone H3 and increases cleaved PARP in cancer cells.

Product information

CAS Number: 58546-34-2

Molecular Weight: 562.73

Formula: C32H50O8


Hemslecin A

Chemical Name: (6R)-6-[(1R, 2R, 3aS, 3bS, 7S, 8S, 9aR, 9bR, 11aR)-2, 7, 8-trihydroxy-3a, 6, 6, 9b, 11a-pentamethyl-10-oxo-1H, 2H, 3H, 3aH, 3bH, 4H, 6H, 7H, 8H, 9H, 9aH, 9bH, 10H, 11H, 11aH-cyclopenta[a]phenanthren-1-yl]-6-hydroxy-2-methyl-5-oxoheptan-2-yl acetate

Smiles: CC(=O)OC(C)(C)CCC(=O)[C@](C)(O)[C@H]1[C@H](O)C[C@@]2(C)[C@@H]3CC=C4[C@@H](C[C@H](O)[C@@H](O)C4(C)C)[C@]3(C)C(=O)C[C@@]21C


InChi: InChI=1S/C32H50O8/c1-17(33)40-27(2,3)13-12-23(36)32(9,39)25-21(35)15-29(6)22-11-10-18-19(14-20(34)26(38)28(18,4)5)31(22,8)24(37)16-30(25,29)7/h10,19-22,25-26,34-35,38-39H,11-16H2,1-9H3/t19-,20+,21-,22+,25+,26-,29+,30-,31+,32+/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. Boykin C, et al. Cucurbitacin IIa: a novel class of anti-cancer drug inducing non-reversible actin aggregation and inhibiting survivin independent of JAK2/STAT3 phosphorylation. Br J Cancer. 2011 Mar 1;104(5):781-9.

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

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