15-(Deoxy)-16-hydroxy-16-vinylprostaglandin E2 methyl ester 15-Deoxy-16-hydroxy-16-vinyl-PGE2 methyl ester 73621-92-8 CL 115,347 Dhv-PGE2Me Prosta-5,13-dien-1-oic acid, 16-ethenyl-11,16-dihydroxy-9-oxo-, methyl ester, (5Z,11alpha,13E)- viprostol