SMILES: C(/C=C\\C(=O)C(=O)[O-])C(=O)[O-]
Description: The molecule is 2-Oxohex-3-enedioate in which the C=C double bond has Z configuration; principal microspecies at pH 7.3. It is a conjugate base of a (3Z)-2-oxohex-3-enedioic acid.