(1-Phenylethylidene)malononitrile .alpha.-Methylbenzalmalononitrile .alpha.-Methylbenzylidenemalononitrile 1,1-Dicyano-2-phenylpropene 5447-87-0 Malononitrile, (.alpha.-methylbenzylidene)- NSC17554 Propanedinitrile, (1-phenylethylidene)-