(-)-Prostaglandin E1 (1R,2R,3R)-3-Hydroxy-2-[(E)-(3S)-3-hydroxy-1-octenyl]-5-oxocynlopentaneheptanoic acid 11.alpha.,15.alpha.-Dihydroxy-9-oxo-13-trans-prostenoic acid 745-65-3 Alprostadil Cyclopentaneheptanoic acid, 3-hydroxy-2-(3-hydroxy-1-octenyl)-5-oxo- Cyclopentaneheptanoic acid, 3-hydroxy-2-(3-hydroxy-1-octenyl)-5-oxo-, (+)- Cyclopentaneheptanoic acid, 3-hydroxy-2-(3-hydroxy-1-octenyl)-5-oxo-, (-)- NSC165559 PGE1 Prost-13-en-1-oic acid, 11,15-dihydroxy-9-oxo-, (11.alpha.,13E,15S)- Prostaglandin E1 U 10136 U-10,136 l-Prostaglandin E1