SMILES: C1=CC=C(C=C1)C(=O)C/C=C/C(=O)C(=O)[O-]
Description: The molecule is a dioxo monocarboxylic acid anion that is the conjugate base of 2,6-dioxo-6-phenylhexa-3-enoic acid, arising from deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate acid of a 2,6-dioxo-6-phenylhexa-3-enoic acid. It is a tautomer of a 2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoate.