100-70-9 2-Cyanopyridine 2-PYRIDINECARBONITRILE 2-Pyridinecarboxylic acid, nitrile 2-Pyridyl nitrile EINECS 202-880-3 HSDB 5338 NSC 59697 Picolinic acid nitrile Picolinonitrile Picolinonitrile (8CI)