(2E,11 alpha,13E,15R)-11,15-dihydroxy-16,16- dimethyl-9-oxoprosta-2,13-dien-1-oic acid, methyl ester
Methyl (E)-7-((1R,2R,3R)-3-Hydroxy-2-((E)-(3R)-3-Hydroxy-4,4-Dimethyl-1-Octenyl)-5-Oxocyclopentyl)-2-Heptenoate