((3,4-Dihydro-2(1H)-isoquinolyl)methylene)malononitrile 6687-82-7 BRN 1684679 MALONONITRILE, ((3,4-DIHYDRO-2(1H)-ISOQUINOLYL)METHYLENE)- NSC 85626 Propanedinitrile, ((3,4-dihydro-2(1H)-isoquinolinyl)methylene)- (9CI)