3-pyridinecarbonitrile, 1,2-dihydro-4,5,6-trimethyl-2-oxo- 4,5,6-trimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile InChI=1/C9H10N2O/c1-5-6(2)8(4-10)9(12)11-7(5)3/h1-3H3,(H,11,12