tert -Butyl 3-amino-5-bromo-1 H -indazole-1-carboxyl-ate.

In the title compound, C 12 H 14 BrN 3 O 2 , the pyrazole and benzene rings are nearly co-planar with a dihedral angle between the rings of 2.36 (5)°. In the crystal, inversion dimers linked by pairwise N-H⋯N hydrogen bonds generate R 2 2 (8) loops. The dimers are linked into a three-dimensional network by weak aromatic π-π stacking inter-actions [centroid-centroid separation = 3.7394 (6) Å] and C-H⋯O and C-H⋯Br hydrogen bonds.