11-Deoxy-13,14-dihydro-15-keto-11beta,16xi-cyclo-PGE2 11-Deoxy-15-keto-13,14-dihydro-11beta,16-cyclo-PGE2 11-Deoxy-15-keto-13,14-dihydro-11beta,16-cycloprostaglandin E2 11-deoxy-15-keto-13,14-dihydro-11 beta,16-cycloprostaglandin E2 5-Heptenoic acid, 7-(4-butyloctahydro-2,5-dioxo-1H-inden-1-yl)- 74158-09-1 Bicyclo-PGEM DKDBCYPGE2 PGE2-M Pgem-II