16,16-DM-PGE1 16,16-Dimethyl-delta(2)-PGE1 16,16-Dimethyl-delta2-prostaglandin E1 64318-77-0 PG Ono 802 Prosta-2,13-dien-1-oic acid, 11,15-dihydroxy-16,16-dimethyl-9-oxo-, (2E,11alpha,13E,15R)-