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