[{"from": "human", "value": "Describe this molecule. [C][=C][C][=Branch1][N][=C][Branch1][Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][O][C][=Branch1][C][=O][N][C@@H1][Branch1][Ring1][C][O][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is the conjugate base of N-(2,3-dihydroxybenzoyl)-L-serine; major species at pH 7.3. It is a conjugate base of a N-(2,3-dihydroxybenzoyl)-L-serine."}]