title: 5-(4-Methyl-piperazin-1-yl)-2-nitro-aniline.
abstract: In the title compound, C(11)H(16)N(4)O(2), the dihedral angle between the benzene ring and the plane of the four carbon atoms in the piperazine ring is 12.17 (3)°; the latter ring adopts a chair conformation. An intramolecular N-H⋯O hydrogen bond generates an S(6) ring. In the crystal, the molecules are linked by N-H⋯N hydrogen bonds, forming chains.
authors.affiliation: Department of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009, People's Republic of China.
authors.forename: Chang-Jun
authors.initials: CJ
authors.lastname: Luan
authors.forename: Cheng
authors.initials: C
authors.lastname: Guo
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Jian-Qiang
authors.initials: JQ
authors.lastname: Wang
authors.forename: Ren-Jun
authors.initials: RJ
authors.lastname: Du