SMILES: C1=CC(=C(C=C1CC(=O)[O-])O)O
Description: The molecule is a dihydroxy monocarboxylic acid anion that is the conjugate base of (3,4-dihydroxyphenyl)acetic acid, arising from deprotonation of the carboxy group. It has a role as a human metabolite. It derives from a phenylacetate. It is a conjugate base of a (3,4-dihydroxyphenyl)acetic acid.