英文别名Dienogest EP Impurity C; (17alpha)-17-Hydroxy-3-oxo-19-norpregna-5(10),9(11)-diene-21-nitrile; Dienogest Diene Impurity; Dienogest Impurity C (Diene Impurity); Dienogest EP Impurity C (Diene Impurity); 19-Norpregna-5(10),9(11)-diene-21-nitrile, 17-hydroxy-3-oxo-, (17α)-; Dienogest Impurity 5 (Dienogest EP Impurity C); 2-[(8S,13S,14S,17R)-17-hydroxy-13-methyl-3-oxo-1,2,4,6,7,8,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-yl]acetonitrile 
