16,16-Dimethyl-pge2 methyl ester 16,16-Dimethylprostaglandin E2 methyl ester 5-Heptenoic acid, 7-(2-(4,4-dimethyl-3-hydroxy-1-octenyl)-3-hydroxy-5-oxocyclopentyl)-, methyl ester MJ9673200 Prosta-5,13-dien-1-oic acid, 11,15-dihydroxy-16,16-dimethyl-9-oxo-, methyl ester (9CI)