[{"from": "human", "value": "What can you tell me about this molecule? [C][=C][Branch1][=Branch1][N][C][=N][Ring1][Branch1][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C][C][C][N]"}, {"from": "gpt", "value": "The molecule is a homocarnosine that has S configuration. It has a role as a human metabolite. It is a homocarnosine, a N-acyl-L-alpha-amino acid, a L-histidine derivative and a dipeptide. It is a tautomer of a L-homocarnosine zwitterion."}]