5-Oxa-pgd1 5-Oxa-prostaglandin D1 85235-27-4 BRN 5982918 BUTYRIC ACID, 4-(2-(5-HYDROXY-2-(3-HYDROXY-1-OCTENYL)-3-OXOCYCLOPENTYL)ETHOXY)-, Butyric acid, 4-(2-(5-hydroxy-2-(3-hydroxy-1-octenyl)-3-oxocyclopentyl)ethoxy)-, (1R-(1-alpha,2-beta(1E,3S),5-alpha))-