SMILES: CCCCC[C@@H](/C=C/[C@H]1[C@H]2C[C@@H]([C@@H]1C/C=C\\CCCC(=O)[O-])OO2)OO
Description: The molecule is a prostaglandin carboxylic acid anion that is the conjugate base of prostaglandin G2, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is an oxylipin anion and a prostaglandin carboxylic acid anion. It is a conjugate base of a prostaglandin G2.