2-[4-[(Z)-4-chloro-1,2-di(phenyl)but-1-enyl]phenoxy]ethanol 128607-22-7 Ophena 2-(p-((Z)-4-Chloro-1,2-diphenyl-1-butenyl)phenoxy)ethanol Deamino-hydroxytoremifene FC-1271a Ospemifene Ospemifene [INN]