40666-04-4 5-HEPTENOIC ACID, 7-(2-(4-(4-FLUOROPHENOXY)-3-HYDROXY-1-BUTENYL)-3,5-DIHYDROXYCY 5-Heptenoic acid, 7-(2-(4-(4-fluorophenoxy)-3-hydroxy-1-butenyl)-3,5-dihydroxycyclopentyl)-, (1-alpha-(Z),2-beta-(1E,3S*),3-alpha,5-alpha)- ICI 79,939 racemic-ICI 79,939