(17?)-10,17-Dihydroxy-19-norpregn-4-en-20-yn-3-one; 10,17-Dihydroxy-19-nor-17?-pregn-4-en-20-yn-3-one; 10?,17-Dihydroxy-19-nor-17?-pregn-4-en-20-yn-3-one; 10?,17?-Dihydroxy-17?-ethynylestr-4-en-3-one; 10?-Hydroxy-19-norethisterone; 10?-Hydroxynorethindrone; 10?-Hydroxynorethisterone; 17?-Ethinyl-10?,17?-dihydroxyestr-4-en-3-one; 17?-Ethynyl-10?,17?-dihydroxy-4-estren-3-one; NSC 63012;
(17?)-10,17-Dihydroxy-19-norpregn-4-en-20-yn-3-one; 10,17-Dihydroxy-19-nor-17?-pregn-4-en-20-yn-3-one; 10?,17-Dihydroxy-19-nor-17?-pregn-4-en-20-yn-3-one; 10?,17?-Dihydroxy-17?-ethynylestr-4-en-3-one; 10?-Hydroxy-19-norethisterone; 10?-Hydroxynorethindrone; 10?-Hydroxynorethisterone; 17?-Ethinyl-10?,17?-dihydroxyestr-4-en-3-one; 17?-Ethynyl-10?,17?-dihydroxy-4-estren-3-one; NSC 63012;