pyridine-4-carboxylic acid 4-Pyridinecarboxylic acid Isonicotinic acid 55-22-1 I17508_ALDRICH Oprea1_749724 InChI=1/C6H5NO2/c8-6(9)5-1-3-7-4-2-5/h1-4H,(H,8,9 isonicotonic acid .gamma.-Picolinic acid Biomol-NT_000289 INA NSC1483 BPBio1_001365 C07446 AC-907/25014347 1,4-Dihydroisonicotinic acid 4-Picolinic acid AI3-19239 Acide iso-nicotinique [French] EINECS 200-228-2 gamma-Picolinic acid gamma-Pyridinecarboxylic acid p-Pyridinecarboxylic acid 58930_FLUKA 4-Carboxypyridine SBB004278 NCGC00163295-01 CHEBI:6032