[{"from": "human", "value": "Provide a description of this molecule. [C][C][=N][C][=C][Branch1][=N][C][=Branch1][Branch1][=C][Ring1][=Branch1][O][C][=Branch1][C][=O][O][C][O]"}, {"from": "gpt", "value": "The molecule is a methylpyridine that is 2-methylpyridine substituted by a hydroxy group at C-3, a carboxy group at C-4, and a hydroxymethyl group at C-5. It is the catabolic product of vitamin B6 and is excreted in the urine. It has a role as a mouse metabolite and a human urinary metabolite. It is a member of methylpyridines, a hydroxymethylpyridine, a monohydroxypyridine and a vitamin B6. It is functionally related to an isonicotinic acid. It is a conjugate acid of a 4-pyridoxate."}]