[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][Branch1][=Branch2][C][C][=C][N][=C][N][Ring1][Branch1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is a non-proteinogenic alpha-amino acid that is histidine in which the methyl group is located at the Calpha-position. It has a role as a human urinary metabolite. It is functionally related to a histidine."}]