(8S,9S,10R,13S,14S,17S)-3-keto-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthrene-17-carboxylic acid methyl ester; methyl (8S,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthrene-17-carboxylate; METHYL 4-ANDROSTEN-3-ONE-17BETA-CARBOXYLINATE; (8S,9S,10R,13S,14S,17S)-methyl 10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylate; Methyl-3-oxo-4-androstene-17beta-carboxylate;