[{"from": "human", "value": "Provide a description of this molecule. [C][=C][Branch1][=C][C][=Branch1][#Branch2][=C][C][=Branch1][C][=O][C][Ring1][#Branch1][=O][O][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1]"}, {"from": "gpt", "value": "The molecule is an amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of topaquinone; major structure at pH 7.3. It is a tautomer of a topaquinone."}]