英文别名3,3-dimethoxy-17α-cyanomethyl-17β-hydroxy-estra-5(10),9(11)-diene; Dienogest EP Impurity E; 2-((8S,13S,14S,17R)-17-Hydroxy-3,3-dimethoxy-13-methyl-2,3,4,6,7,8,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)acetonitrile; (17alpha)-17-Hydroxy-3,3-dimethoxy-19-norpregna-5(10),9(11)-diene-21-nitrile; 17-Hydroxy-3,3-dimethoxy-19-norpregna-5(10),9(11)-diene-21-nitrile; Dienogest Dimethoxy Impurity; Dienogest Impurity 8 
