SMILES: CC(=O)NC1=C(C=CC(=C1)C(=O)O)[O-]
Description: The molecule is a carboxylic acid anion resulting from the deprotonation of the carboxy group of 3-acetamido-4-hydroxybenzoic acid. The major microspecies at pH 7.3. It is a conjugate base of a 3-acetamido-4-hydroxybenzoic acid.