Synonyms: Gestrinone;Dimetriose;Nemestran;Dimetrose;Gestrigone;Tridomose;Ethylnorgestrienone;Gestrinona;Gestrinonum [INN-Latin];Gestrinona [INN-Spanish];R-2323;RU 2323;BRN 5610726;A 46745;16320-04-0;13-Ethyl-17-alpha-ethinyl-17-hydroxygon-4,9,11-trien-3-one;13-beta-Ethyl-17-alpha-ethinyl-17-hydroxy-gona-4,9,11-triene-3-one;13-Ethyl-17-hydroxy-18,19-dinor-17alpha-pregna-4,9,11-trien-20-yn-3-one;18,19-Dinor-17-alpha-pregna-4,9,11-trien-20-yn-3-one, 13-ethyl-17-hydroxy-;Gestrinonum;Gestrinone (USAN/INN);AC1L1E0G;Gestrinone [USAN:BAN:INN];UNII-1421533RCM;HMDB02720;HMS2089K16;Ru-2323;SBB066069;ZINC03938633;NCGC00167457-01;LS-62072;LS-185034;D04317;A-46745;13-Ethyl-17a-ethynyl-17b-hydroxygona-4,9,11-trien-3-one;(17a)-13-ethyl-17-hydroxy-18,19-Dinorpregna-4,9,11-trien-20-yn-3-one;13-ethyl-17-hydroxy-18,19-Dinor-17a-pregna-4,9,11-trien-20-yn-3-one;(17alpha)-13-Ethyl-17-hydroxy-18,19-dinorpregna-4,9,11-trien-20-yn-3-one;18,19-Dinorpregna-4,9,11-trien-20-yn-3-one, 13-ethyl-17-hydroxy-, (17-alpha)-;18,19-Dinorpregna-4,9,11-trien-20-yn-3-one, 13-ethyl-17-hydroxy-, (17-alpha)- (9CI);Pregna-4,9,11-trien-20-yn-3-one, 13-ethyl-17-hydroxy-18,19-dinor-, (17alpha)-;(8S,13S,14S,17R)-13-ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,14,15,16-octahydrocyclopenta[a]phenanthren-3-one;40542-65-2