title: 2,3-Dimethyl-6-nitro-2H-indazole.
abstract: In the mol-ecule of the title compound, C(9)H(9)N(3)O(2), the indazole ring system is almost planar [maximum deviation = 0.019 (3) Å for the C atom bearing the nitro group]. In the crystal structure, inter-molecular C-H⋯O inter-actions link the mol-ecules into centrosymmetric dimers, forming R(2) (2)(18) ring motifs. Aromatic π-π contacts between indazole rings [centroid-centroid distances = 3.632 (1) and 3.705 (1) Å] may further stabilize the structure.
authors.forename: Yan
authors.initials: Y
authors.lastname: Chen
authors.forename: Zheng
authors.initials: Z
authors.lastname: Fang
authors.forename: Ping
authors.initials: P
authors.lastname: Wei