title: N-(2,5-Dimeth-oxy-phen-yl)-6-nitro-quinazolin-4-amine.
abstract: In the title mol-ecule, C16H14N4O4, the quinazoline ring is substanti-ally planar (r.m.s. deviation = 0.0129 Å) and forms a dihedral angle of 2.73 (8)° with the benzene ring. The conformation of the mol-ecule is stabilized by an intra-molecular C-H⋯N hydrogen bond. In the crystal, mol-ecules are linked into chains running parallel to the b axis by C-H⋯O hydrogen bonds. In addition, π-π stacking is observed between dimethoxy-substituted and nitro-substituted benzene rings, with centroid-centroid distances in the range 3.6438 (10)-3.7148 (10) Å.
authors.affiliation: H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
authors.forename: Syed Muhammad
authors.initials: SM
authors.lastname: Saad
authors.forename: Imran
authors.initials: I
authors.lastname: Khan
authors.forename: Shahnaz
authors.initials: S
authors.lastname: Perveen
authors.forename: Khalid M
authors.initials: KM
authors.lastname: Khan
authors.forename: Sammer
authors.initials: S
authors.lastname: Yousuf