[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][=Branch1][C][=O][N][C@@H1][Branch1][N][C][C][=C][N][Branch1][Branch1][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acid that is N-acetyl-L-histidine in which the hydrogen attached to position 1 on the imidazole ring has been replaced by a methyl group. It has a role as a human blood serum metabolite. It is a L-histidine derivative and a N-acetyl-L-amino acid. It is a conjugate acid of a N-acetyl-1-methyl-L-histidinate."}]