2,6-Dihydroxy-4-carboxypyridine 2,6-Dihydroxy-4-pyridinecarboxylic acid 2,6-Dihydroxyisonicotinate 2,6-Dihydroxyisonicotinic acid 4-Pyridinecarboxylic acid, 1,2-dihydro-6-hydroxy-2-oxo- 4-Pyridinecarboxylic acid, 2,6-dihydroxy- 99-11-6 Citrazinic acid Isonicotinic acid, 2,6-dihydroxy- NSC41334 WLN: T6NJ BQ DVQ FQ