(11alpha,13E)-(+)-11,16-Dihydroxy-16-methyl-9-oxoprost-13-en-1-oic acid 15-Deoxy-16-hydroxy-16-methylprostaglandin E1 66792-31-2 Misoprostol acid Prost-13-en-1-oic acid, 11,16-dihydroxy-16-methyl-9-oxo-, (11alpha,13E)-(+-)- SC 30695