1H-1,4-Diazepine-2,3-dicarbonitrile, hexahydro-2,3-dimethyl- 2,3-Dimetil-2,3-dician-esaidro-1,4-diazepina [Italian] 3187 I.S. HM3802000 Hexahydro-2,3-dimethyl-1H-1,4-diazepine-2,3-dicarbonitrile