英文别名(7R,8R,9S,13S,14S)-3,3-dimethoxy-7,13-dimethyl-1,2,4,6,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-one; 7a-Methyl-3,3-Dimethoxy-5(10)-Estrene-17-One; 7α-Methyl-3,3-dimethoxy-5(10)-estrene-17-one; 7alpha-Methyl-3,3-dimethoxy-5(10)-estrene-17-one; (7alpha)-3,3-dimethoxy-7-methyl-estr-5(10)-en-17-one; 7 ALPHA-METHYL-3,3-DIMETHOXY-5(10)-ESTRENE-17-ONE; 3,3-DIMETHOXY-7ALPHA-METHYLESTER-5(10)-EN-17-ONE; Tibolone Impurity 1 
