title: 4-Isopropyl-amino-3-nitro-benzonitrile.
abstract: In the title compound, C(10)H(11)N(3)O(2), the nitro group is essentially coplanar with the aromatic ring [dihedral angle = 3.4 (3)°] and forms an intra-molecular N-H⋯O hydrogen bond with the amine group. In the crystal, weak aromatic C-H⋯O and C-H⋯N hydrogen bonds link the mol-ecules. Weak aromatic ring π-π inter-actions [minimum ring centroid-centroid separation = 3.9841 (16) Å] are also present.
authors.affiliation: Department of Biological and Chemical Engineering, Chien-shiung Institute of Technology, Taicang 215411, Suzhou,  People's Republic of China.
authors.forename: Hong-Sheng
authors.initials: HS
authors.lastname: Jia