Synonyms: BRN 4198423;5-beta-Methyl-19-norpregn-9(10)-ene-3,20-dione;19-Norpregn-9-ene-3,20-dione, 5-methyl-, (5beta)-;19-Norpregn-9-ene-3,20-dione, 5-methyl-, (5-beta)-;AC1MIPJO;LS-97391;(5R,8S,13S,14S,17S)-17-acetyl-5,13-dimethyl-1,2,4,6,7,8,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one;130917-92-9