3-Pyridinecarboxylic acid, 1,6-dihydro-6-oxo-, 2-Hydroxy-5-pyridinecarboxylic acid, 6-Hydroxypyridine-3-carboxylic acid, 5-carboxy-2-hydroxypyridine, 6-Hydroxyniacin, 2-Hydroxy-5-pyridine, 2-hydroxy 5-carboxypyridine, 6-Hydroxy Nicotinic Acid, 6-oxonicotinic acid, 5-Carboxy-2-pyridone, 6-Hydroxynicotinic Acid, 6-hydroxy-3-pyridinecarboxylic acid, 6-Hydroxynicotinic, 2-hydroxy 5-pyridine carboxylic acid, Judy, 6-hydroxynicotinic acid