Cucurbitacin IIb

Catalog No. Size PriceQuantity
M12653-2 2mg solid $270
M12653-10 10mg solid $1,055


Cucurbitacin IIb is an active component isolated from Hemsleya amabilis, induces apoptosis with anti-inflammatory activity. Cucurbitacin IIb inhibits phosphorylation of STAT3, JNK and Erk1/2, enhances the phosphorylation of IκB and NF-κB (p65), blocks nuclear translocation of NF-κB (p65) and decreases mRNA levels of IκBα and TNF-α.

Product information

CAS Number: 50298-90-3

Molecular Weight: 520.70

Formula: C30H48O7

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

Smiles: CC(C)(O)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/C30H48O7/c1-25(2,36)12-11-21(33)30(8,37)23-19(32)14-27(5)20-10-9-16-17(13-18(31)24(35)26(16,3)4)29(20,7)22(34)15-28(23,27)6/h9,17-20,23-24,31-32,35-37H,10-15H2,1-8H3/t17-,18+,19-,20+,23+,24-,27+,28-,29+,30+/m1/s1

Technical Data

Appearance: Solid Power

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

Solubility: DMSO : 100 mg/mL (192.05 mM; Need ultrasonic)

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. Wang Y, et al. Cucurbitacin IIb exhibits anti-inflammatory activity through modulating multiple cellular behaviors of mouse lymphocytes. PLoS One. 2014 Feb 25;9(2):e89751.

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

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