1-(2,4-Dinitrophenyl)-3,5-dimethylpyrazole

The asymmetric unit of the title compound consists of two independent molecules of C11H10N4O4. The pyrazole and dinitrophenyl rings are individually planar and are twisted about the N—Csp2 bond joining them by 64°. The two nitro groups attached to the phenyl ring show different degrees of rotation away from the plane of the phenyl ring, with those groups at the para positions rotated by 8.2 (3) and 14.8 (2)°, and those at the ortho positions rotated by 33.5 (1) and 33.2 (1)°. The crystal structure is stabilized by van der Waals interactions.