The molecule is a prostaglandin carboxylic acid anion that is the conjugate base of prostaglandin J2, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a prostaglandin J2.
(Z)-7-[(1S,5R)-5-[(E,3S)-3-hydroxyoct-1-enyl]-4-oxocyclopent-2-en-1-yl]hept-5-enoate