Synonyms: 9a,11b-dimethyl-9-(2-methyl-1,3-dioxolan-2-yl)tetradecahydrospiro[cyclopenta[1,2]phenanthro[8a,9-b]oxirene-3,2'-[1,3]dioxolan]-11-yl acetate;AC1L67KE;AC1Q62IF;NSC48991;AR-1H5406;NSC-48991;(4aS,5aR,6aS,6bS,9S,9aS,11R,11aS,11bR)-9a,11b-dimethyl-9-(2-methyl-1,3-dioxolan-2-yl)tetradecahydrospiro[cyclopenta[1,2]phenanthro[8a,9-b]oxirene-3,2'-[1,3]dioxolan]-11-yl acetate