title: 5,6-Dimethyl-pyrazine-2,3-dicarbonitrile.
abstract: The asymmetric unit of the title compound, C(8)H(6)N(4), contains two almost planar independent mol-ecules (r.m.s. deviations = 0.026 and 0.030 Å). The crystal studied was a non-merohedral twin with the components in a 0.513 (2):0.487 (2) ratio.
authors.affiliation: Department of Chemistry, Payame Noor University, PO Box 19395-3697, Tehran,  Iran.
authors.forename: Ghasem Rezanejade
authors.initials: GR
authors.lastname: Bardajee
authors.forename: Alan J
authors.initials: AJ
authors.lastname: Lough
authors.forename: Mitchell A
authors.initials: MA
authors.lastname: Winnik