(+)-Prostaglandin A2 (15S)-PGA2 (15S)-Prostaglandin A2 13345-50-1 5,6-cis-PGA2 5-Heptenoic acid, 7-[2-(3-hydroxy-1-octenyl)-5-oxo-3-cyclopenten-1-yl]- Medullin NSC165561 PGA2 Prosta-5,10,13-trien-1-oic acid, 15-hydroxy-9-oxo-, (5Z,13E,15S)- Prostaglandin A2