1,2-Dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile 2,6-Dihydroxy-4-methyl-3-pyridinecarbonitrile 3-Pyridinecarbonitrile, 1,2-dihydro-6-hydroxy-4-methyl-2-oxo- 40401-47-6 5444-02-0 EINECS 226-639-7 NSC 19883