3-Hydroxyestra-1,3,5(10),6,8-pentaen-17-one 3-Hydroxyoestra-1,3,5(10),6,8-pentaen-17-one 4-08-00-01420 (Beilstein Handbook Reference) 517-09-9 BRN 2335367 EINECS 208-230-5 EQUILENIN Equilenina [Spanish] Equilenine Estra-1,3,5(10),6,8-pentaen-17-one, 3-hydroxy- Estra-1,3,5,7,9-pentaen-17-one, 3-hydroxy- Isoequilenin NSC 9901 d-Equilenin