英文别名Dienogest EP Impurity G; 17α-Cyanomethylestra-1,3,5(10),9(11)-tetraen-3,17β-diol; 9,11-Dehydro-17α-cyanomethyl Estradiol; 9,11-Dehydro-17a-cyanomethyl Estradiol; 17α-cyanomethyl-1,3,5(10),9(11)-estratetraene-3,17-diol; 19-Norpregna-1,3,5(10),9(11)-tetraene-21-nitrile, 3,17-dihydroxy-, (17α)- (9CI); Dienogest Impurity 3; 17a-Cyanomethylestra-1,3,5(10),9(11)-tetraene-3,17b-diol; [(17β)-3,17-Dihydroxyestra-1,3,5(10),9(11)-tetraen-17-yl]acetonitrile; 3,17-dihydroxyestra-1,3,5(10),9(11)-tetraen-17α-yl]acetonitrile 
