1,2,3,4-Tetrahydro-4-(3-nitrophenyl)-6-phenyl-2-thioxo-3-pyridinecarbonitrile 3-Cyano-4-(m-nitrophenyl)-6-phenyl-3,4-dihydropyridine-2-thione 3-Pyridinecarbonitrile, 1,2,3,4-tetrahydro-4-(3-nitrophenyl)-6-phenyl-2-thioxo- 89451-33-2