Synonyms: Sterolibrin;Biogest;AC1MIVG0;[(8R,9S,10R,13S,14S,17R)-17-acetyl-6-chloro-10,13-dimethyl-16-methylidene-3-oxo-1,2,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-17-yl] acetate; (8R,9S,13S,14S)-17-ethynyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol;8077-77-8;Pregna-4,6-diene-3,20-dione, 17-(acetyloxy)-6-chloro-16-methylene-, mixt. with (17alpha)-3-methoxy-19-norpregna-1,3,5(10)-trien-20-yn-17-ol