1,2,3,4-Tetrahydro-2-oxo-3-quinolinecarbonitrile 106073-17-0 3-Cyano-3,4-dihydroquinoline-2(1H)-one 3-Quinolinecarbonitrile, 1,2,3,4-tetrahydro-2-oxo- BRN 4678758 Compound 84-182