英文别名:
Norethindrone Acetate 3-Ethyl Ether;Norethindrone Acetate 3-Ethoxy Impurity;Norethindrone Acetate EP Impurity I;19-Norpregna-3,5-dien-20-yn-17-ol, 3-ethoxy-, acetate, (17α)- (9CI);Norethindrone Acetate Impurity 9 (Norethindrone Acetate EP Impurity I);3-Ethoxy-19-nor-17α-pregna-3,5-dien-20-yn-17-yl Acetate