(1-Phenylethylidene)malononitrile 1,1-Dicyano-2-phenylpropene 5447-87-0 AI3-16815 Malononitrile, (alpha-methylbenzylidene)- (8CI) NSC 17554 Propanedinitrile, (1-phenylethylidene)- alpha-Methylbenzalmalononitrile alpha-Methylbenzylidenemalononitrile