[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=Branch1][C][=O][N][C][=C][Branch1][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][O-1]"}, {"from": "gpt", "value": "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."}]