75111-35-2 Butanoic acid, 4-((3,3a,4,5,6,6a-hexahydro-5-hydroxy-4-(3-hydroxy-1-octenyl)cyclopenta(b)pyrrol-2-yl)thio)-, methyl ester, (3aR-(3aalpha,4alpha(1E,3S*),5beta,6aalpha))- Hoe 892 Hoe-892 S 79 2892 A beta-Thia-imino-prostacyclin