4510-16-1 5-Heptenoic acid,7-[3,5-dihydroxy-2(3-hydroxy-1-octenyl)cyclopentyl]-, stereoisomer 9beta,11alpha-PGF2a 9beta,11alpha-PGF2alpha C02314 PGF2b PGF2beta Prosta-5,13-dien-1-oic acid,9,11,15-trihydroxy-,(5Z,9beta,11alpha,13E,15S)- Prostaglandin F2b Prostaglandin F2beta