SMILES: C/C=C\\C=C(\\C(=O)O)/[O-]
Description: The molecule is a monocarboxylic acid anion resulting from the removal of a proton from the carboxy group of (2Z,4Z)-2-hydroxyhexa-2,4-dienoic acid. It is a conjugate base of a (2Z,4Z)-2-hydroxyhexa-2,4-dienoic acid.