英文同义词: | Δ-5(6)-Norethindrone;(17α)-17-Hydroxy-19-norpregn-5-en-20-yn-3-one;17-Hydroxy-19-nor-17α-pregn-5-en-20-yn-3-one;delta-5(6)-Norethindrone;Norethindrone Impurity 1;Norethindrone Impurity 3(Norethindrone EP Impurity C);(8R,9S,10R,13S,14S,17R)-17-ethynyl-17-hydroxy-13-methyl-1,2,4,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one;Norethisterone EP impurity C |