(+)-1-Decarboxy-1-methyl-20-nor-19-carboxyprostaglandin F(sub 2-alpha) (5Z,9-alpha,11-alpha,13E,15S)-9,11,15-Trihydroxyprost-5,13-dien-20-oic acid 152561-64-3 Prost-5,13-dien-20-oic acid, 9,11,15-trihydroxy-, (5Z,9-alpha,11-alpha,13E,15S)-