Synonyms: (5Z,11alpha,13E,15S)-11,15-Dihydroxy-9-oxoprosta-5,13-dien-1-oic acid; (5Z,13E)-(15S)-11alpha,15-Dihydroxy-9-oxoprosta-5,13-dienoate; 7-[3-Hydroxy-2-(3-hydroxy-1-octenyl)-5-oxocyclopentyl]-5-heptenoic acid; PGE2; Prosta-5,13-diene-1-oic acid, 11,15-dihydroxy-9-oxo-, (5Z,11a,13E15S)-; Dinoprostone; Prosta-5,13-dien-1-oic acid, 11,15-dihydroxy-9-oxo-, (5Z,8ξ,12ξ,13E)-