6?,17-Dihydroxy-19-nor-17?-pregn-4-en-20-yn-3-one 17-acetate; 6?-hydroxy-3-oxo-19-nor-17?-pregn-4-en-20-yn-17-yl Acetate; 6?-Hydroxy Norethindrone Acetate; (6?,17?)-17-(Acetyloxy)-6-hydroxy-19-norpregn-4-en-20-yn-3-one;Norethindrone Acetate 6-beta-Hydroxy Impurity
6?,17-Dihydroxy-19-nor-17?-pregn-4-en-20-yn-3-one 17-acetate; 6?-hydroxy-3-oxo-19-nor-17?-pregn-4-en-20-yn-17-yl Acetate; 6?-Hydroxy Norethindrone Acetate; (6?,17?)-17-(Acetyloxy)-6-hydroxy-19-norpregn-4-en-20-yn-3-one;Norethindrone Acetate 6-beta-Hydroxy Impurity