Synonyms: 5-Heptenoicacid, 7-[3-hydroxy-2-(3-hydroxyoctyl)-5-oxo-cyclopentyl]-, stereoisomer (8CI);5-Heptenoic acid, 7-[3-hydroxy-2-(3-hydroxyoctyl)-5-oxocyclopentyl]- (7CI); 11a,15-Dihydroxy-9-ketoprost-5-enoicacid; 11a,15-Dihydroxy-9-oxoprost-5-enoicacid; 11a,15L-Dihydroxy-9-ketoprost-5-enoicacid; 13,14-Dihydro-PGE2; 13,14-Dihydroprostaglandin E2