[{"from": "human", "value": "Could you give me a brief overview of 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-1]"}, {"from": "gpt", "value": "The molecule is a monocarboxylic acid anion that is the conjugate base of N-acetyl-3-methyl-L-histidine, obtained by deprotonation of the carboxy group; major species at pH 7.3. It has a role as a human blood serum metabolite. It is a conjugate base of a N-acetyl-3-methyl-L-histidine."}]