1-(3-Bromo-6-nitro-1H-indazol-1-yl)ethan-1-one

The asymmetric unit of the title compound, C9H6BrN3O3, consists of two independent molecules differing in the rotational orientations of the nitro and acetyl substituents. In the crystal, head-to-head π-stacking between pairs of adjacent molecules forms dimers which are associated into stacks by C—Br...π(ring) interactions. C—H...O hydrogen bonds tie the stacks together.