[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=Branch1][C][=O][N][C@@H1][Branch1][#Branch2][C][C][=C][N][=C][N][Ring1][Branch1][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is an N-acetyl-L-amino acid that is N-acetyl-L-histidine carrying a methyl substituent at position 3 on the imidazole ring. It has a role as a human blood serum metabolite. It is a N-acetyl-L-amino acid and a L-histidine derivative. It is a conjugate acid of a N-acetyl-3-methyl-L-histidinate."}]