[{"from": "human", "value": "What can you tell me about this molecule? [C][Branch1][Ring1][C][N][C][Branch1][O][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][Cl]"}, {"from": "gpt", "value": "The molecule is an L-alpha-amino acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of 4-chloro-L-lysine It is a conjugate base of a 4-chloro-L-lysinium. It is a tautomer of a 4-chloro-L-lysine."}]