The molecule is the 15-dehydro derivative of prostaglandin D2. It derives from a prostaglandin D2. It is a conjugate acid of a 15-dehydro-prostaglandin D2(1-).
(Z)-7-[(1R,2R,5S)-5-hydroxy-3-oxo-2-[(E)-3-oxooct-1-enyl]cyclopentyl]hept-5-enoic acid