3,4-Methylenedioxybenzonitrile 4421-09-4 5-19-07-00303 (Beilstein Handbook Reference) AI3-31574 BRN 0006224 Benzo-1,3-dioxole-5-carbonitrile Benzonitrile, 3,4-methylenedioxy- EINECS 224-590-6 NSC 27009 Piperonylonitrile