has role 4-pyridoxic acid CHEBI:1928 PMID:11756060 4-Pyridoxic acid CHEBI:20474 2-methyl-3-hydroxy-4-carboxy-5-hydroxymethylpyridine PMID:2580028 3-hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinecarboxylic acid PMID:1783639 4-pyridoxinecarboxylic acid 3-hydroxy-5-(hydroxymethyl)-2-methylisonicotinic acid PMID:1462525 PMID:14747687 pyridoxic acid PMID:28778380 Reaxys:384006 4-pyridoxylic acid Chemspider:6467 PMID:22770225 4-Pyridoxinsaeure FooDB:FDB021874 KNApSAcK:C00052160 PMID:8505768 MetaCyc:CPD-1112 PMID:17868768 PMID:32346589 PMID:23535534 4-pyridoxinic acid chebi_ontology HMDB:HMDB0000017 PMID:30845778 CAS:82-82-6 CHEBI:17405 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. KEGG:C00847 methylpyridines vitamin B6 4-pyridoxate monohydroxypyridine hydroxymethylpyridine isonicotinic acid mouse metabolite human urinary metabolite