SMILES: C1=CC(=C(C=C1CCC(=O)[O-])O)O
Description: The molecule is a monocarboxylic acid anion that is the conjugate base of 3-(3,4-dihydroxyphenyl)propanoic acid. It has a role as a human xenobiotic metabolite. It is a conjugate base of a 3-(3,4-dihydroxyphenyl)propanoic acid.