41641-82-1 5-HEPTENOIC ACID, 7-(2-(4-BUTOXY-3-HYDROXY-1-BUTENYL)-3,5-DIHYDROXYCYCLOPENTYL)- 5-Heptenoic acid, 7-(2-(4-butoxy-3-hydroxy-1-butenyl)-3,5-dihydroxycyclopentyl)-, (1R-(1-alpha(Z),2-beta(1E,3S*),3-alpha,5-alpha))-