Synonyms: 23,24-Dihydrocucurbitacin F;(1s,2s,4r,9|A,16|A,17xi)-1,2,16,20,25-pentahydroxy-9,10,14-trimethyl-4,9-cyclo-9,10-secocholest-5-ene-11,22-dione;52019-36-0;Cucurbitacin IIb;50298-90-3;AC1L2I1J;AC1Q5H4T;CCRIS 7544;CHEMBL422755;KST-1A5267;AR-1A1550;I07-0257;(2S,3S,8S,9R,10R,13R,14S,16R)-17-[(2R)-2,6-dihydroxy-6-methyl-3-oxoheptan-2-yl]-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,7,8,10,12,15,16,17-decahydrocyclopenta[a]phenanthren-11-one;19-Norlanost-5-ene-11,22-dione, 2,3,16,20,25-pentahydroxy-9-methyl-, (2beta,3alpha,9beta,10alpha,16alpha)-;9-Methyl-2,3,16,20,25-pentahydroxy-19-norlanosta-5-ene-11,22-dione, (2.beta.,3.alpha.,9.beta.,10.alpha.,16.alpha.)