(5Z,13E)-(15S)-11-alpha,15-dihydroxy-9-oxoprost-13-enoate (5Z,13E)-(15S)-11alpha,15-dihydroxy-9-oxoprosta-5,13-dienoate 5Z13E-15S-11-ALPHA15-DIHYDROXY-9-O-ENOAT Dinoprostone Prostglandin E2