Synonyms: AC1L5BG6;Methyl 3,12-dioxopregna-1,4-diene-20-carboxylate;Pregna-1,4-diene-20-carboxylic acid, 3,12-dioxo-, methyl ester;87707-04-8;methyl 2-[(8R,9S,10R,13S,14S)-10,13-dimethyl-3,12-dioxo-7,8,9,11,14,15,16,17-octahydro-6H-cyclopenta[a]phenanthren-17-yl]propanoate