Synonyms: Malononitrile,piperonylidene- (7CI,8CI); Propanedinitrile, (1,3-benzodioxol-5-ylmethylene)-(9CI); (1,3-Benzodioxol-5-ylmethylene)malononitrile;(1,3-Benzodioxol-5-ylmethylene)propanedinitrile;3,4-Methylenedioxyphenylmethylenemalononitrile;3-(1,3-Benzodioxol-5-yl)-2-cyanopropenenitrile; NSC 1340; NSC 521577;Piperonalmalononitrile; [3,4-(Methylenedioxy)benzylidene]malononitrile