SMILES: C(=C(\\C=C(\\C(=O)[O-])/[O-])/C(=O)[O-])\\C(=O)O
Description: The molecule is a tricarboxylic acid trianion resulting from deprotonation of the three carboxy groups of (2Z,4E)-4-carboxy-2-hydroxyhexa-2,4-dienedioic acid. It is a conjugate base of a (2Z,4E)-4-carboxy-2-hydroxyhexa-2,4-dienedioic acid.