Synonyms: (16alpha,17alpha)-16,17-Epoxyestra-1(10),2,4-trien-3-ol;estra-1(10),2,4-trien-3-ol, 16,17-epoxy-, (16alpha,17alpha)-;Estra-1,3,5(10)-trien-3-ol, 16,17-epoxy-, (16.alpha.,17.alpha.)-;Estra-1,3,5(10)-trien-3-ol, 16,17-epoxy-, (16alpha,17alpha)-;Estra-1,3,5(10)-trien-3-ol, 16.alpha.,17.alpha.-epoxy-