SMILES: C(=C/C(=O)C(=O)O)\\C=C/[O-]
Description: The molecule is the conjugate base of 2-hydroxy-6-oxohexa-2,4-dienoic acid; major species at pH 7.3. It is a 6-oxo monocarboxylic acid anion and a hydroxy monocarboxylic acid anion. It is a conjugate base of a 2-hydroxy-6-oxohexa-2,4-dienoic acid.