Cucurbitacin E

Cucurbitacin E is a plant-derived triterpene that has diverse biological activities. At a concentration of 10 pM, it reduces MPP+-induced death of neuronal PC12 cells through inhibition of autophagy in vitro. Cucurbitacin E inhibits growth of T24 bladder, MDA-MB-468 and MCF-7 breast, PC3 prostate, and colorectal cancer cell lines (IC50s = 50-1,000 nM) through induction of G2/M arrest and apoptosis. It increases bilirubin binding to human serum albumin (HSA) in human plasma in a dose-dependent manner. Cucurbitacin E also inhibits depolymerization of actin filaments isolated from rabbit skeletal muscle actin and in HeLa cells.Formal Name: (9beta,10alpha,16alpha,23E)-25-(acetyloxy)-2,16,20-trihydroxy-9-methyl-19-norlanosta-1,5,23-triene-3,11,22-trione. CAS Number: 18444-66-1. Synonyms: NSC 106399, NSC 521775. Molecular Formula: C32H44O8. Formula Weight: 556.7. Purity: >98%. Formulation: (Request formulation change), A crystalline solid. Solubility: DMF: 30 mg/ml, DMSO: 30 mg/ml, Ethanol: 30 mg/ml, Ethanol:PBS (pH 7.2) (1:4): 0.2 mg/ml. lambdamax: 234 nm. SMILES: OC(C(C1(C)C)=O)=C[C@]2([H])C1=CC[C@]([C@@](C[C@@H](O)[C@]3([H])[C@](O)(C)C(/C=C/C(C)(C)OC(C)=O)=O)(C)[C@]3(C)C4)([H])[C@@]2(C)C4=O. InChi Code: InChI=1S/C32H44O8/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/h10,12-14,19,21-22,25,34-35,39H,11,15-16H2,1-9H3/b13-12+/t19-,21-,22+,25+,29+,30-,31+,32+/m1/s1. InChi Key: NDYMQXYDSVBNLL-MUYMLXPFSA-N.