[{"from": "human", "value": "What can you tell me about this molecule? [C][N+1][Branch1][C][C][Branch1][C][C][C][Branch2][Ring1][=Branch1][C][C][C][=N][C][=C][Branch1][Ring2][N][Ring1][Branch1][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a L-histidine derivative that is L-histidine substituted at poisition 2 (on the imidazole ring) by a 3-carboxylato-3-(trimethylammonio)propyl group. It is an amino-acid betaine, a L-histidine derivative and a non-proteinogenic L-alpha-amino acid."}]