13-Ethyl-17-hydroxy-18,19-dinor-17alpha-pregna-4,15-dien-20-yn-3-one 17-alpha-Ethinyl-13-ethyl-17-beta-hydroxy-4,15-gonadien-3-one 18,19-Dinorpregna-4,15-dien-20-yn-3-one, 13-ethyl-17-hydroxy-, (17-alpha)- 60282-87-3 BRN 4237181 EINECS 262-145-8 GESTODENE Gestodene [USAN:BAN:INN] Gestodeno [INN-Spanish] Gestodenum [INN-Latin] HSDB 3594 Pregna-4,15-dien-20-yn-3-one, 13-ethyl-17-hydroxy-18,19-dinor-, (17alpha)- SH B 331