2-Methyl-3-hydroxy-4-carboxy-5-hydroxymethylpyridine 3-Hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinecarboxylic acid 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinic acid 4 PA 4-Pyridinecarboxylic acid, 3-hydroxy-5-(hydroxymethyl)-2-methyl- 4-Pyridoxic acid 4-Pyridoxinecarboxylic acid 4-Pyridoxinic acid 4-Pyridoxylic acid 82-82-6 Isonicotinic acid, 3-hydroxy-5-(hydroxymethyl)-2-methyl- NSC41814