(15R)-15-Methylprostaglandin E2 (5A,11alpha,13E,15R)-11,15-Dihydroxy-15-methyl-9-oxo-5,13-prostadiensaeure (E,Z)-(1R,2R,3R)-7-(3-Hydroxy-2-((3R)-(3-hydroxy-3-methyl-1-octenyl))-5-oxocyclopentyl)-5-heptenoic acid 15(R)-15-Methyl prostaglandin E2 15(R)-Methylprostaglandin E2 55028-70-1 Araprostil Arbacet Arbaprostil Arbaprostil [USAN:INN] Arbaprostilo [INN-Spanish] Arbaprostilum [INN-Latin] CCRIS 1921 Prosta-5,13-dien-1-oic acid, 11,15-dihydroxy-15-methyl-9-oxo-, (5Z,11alpha,13E,15R)- U 42-842 U 42842