(16beta,17beta)-16,17-Epoxyestra-1,3,5(10)-trien-3-ol 109246-24-4 16,17-Est 16alpha,17alpha-Epoxyestra-1,3,5-trien-3-ol 16beta,17beta-Epoxy-1,3,5(10)-estratrien-3-ol 472-57-1 Estra-1,3,5(10)-trien-3-ol, 16,17-epoxy-, (16beta,17beta)-