56304-74-6

6-Hydroxy-[2,2'-bipyridine]-5-carbonitrile 6-Oxo-1,6-dihydro-[2,2'-bipyridine]-5-carbonitrile [2,2'-Bipyridine]-5-carbonitrile, 1,6-dihydro-6-oxo- 1,2-dihydro-2-oxo-6-(2-pyridyl)-3-pyridinecarbonitrile 2-oxo-6-(2-pyridinyl)-1,2-dihydro-3-pyridinecarbonitrile