[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1]"}, {"from": "gpt", "value": "The molecule is a D-alpha-amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of D-alpha-phenylglycine; major species at pH 7.3. It is a tautomer of a D-alpha-phenylglycine."}]