Synonyms: Isonicotinicacid, 1,2-dihydro-6-hydroxy-2-oxo- (7CI);Isonicotinic acid, 2,6-dihydroxy-(6CI,8CI);2,6-Dihydroxy-4-carboxypyridine;2,6-Dihydroxy-4-pyridinecarboxylicacid;2,6-Dihydroxyisonicotinic acid;6-Hydroxy-4-carboxy-2-pyridone;CGA129218;NSC 41334;NSC 5214;