[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][Cl][C][=Branch1][Branch1][=C][N][Ring1][Branch2][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1]"}, {"from": "gpt", "value": "The molecule is an L-alpha-amino acid zwitterion resulting from the transfer of a proton from the carboxy group to the alpha-amino group of 5-chloro-L-tryptophan. It is a tautomer of a 5-chloro-L-tryptophan."}]