英文别名:
4-ESTREN-17-ALPHA-ETHYNYL-6-BETA, 17-BETA-DIOL-3-ONE;6-BETA-HYDROXYNORETHINDRONE;Norethisterone EP impurity H;Norethindrone EP Impurity H;6-beta-Hydroxynorethindrone (Norethindrone IMpurity H);(6BETA,17BETA)-6,17-DIHYDROXY-19-NORPREGN-4-EN-20-YN-3-ONE;(6β,17α)-6,17-Dihydroxy-19-norpregn-4-en-20-yn-3-one;6β,17β-Dihydroxy-17α-ethynylestr-4-en-3-one