title: 3-Bromo-6-nitro-1-(prop-2-yn-yl)-1H-indazole.
abstract: In the title compound, C(10)H(6)BrN(3)O(2), the indazole fused-ring system is nearly planar (r.m.s. deviation = 0.008 Å); its nitro substituent is nearly coplanar with the fused ring [dihedral angle = 4.5 (2)°]. In the crystal, adjacent mol-ecules are linked by weak acetyl-ene-nitro C-H⋯O hydrogen bonds, generating a helical chain running along the b axis.
authors.forename: Nabil
authors.initials: N
authors.lastname: El Brahmi
authors.forename: Mohamed
authors.initials: M
authors.lastname: Benchidmi
authors.forename: El Mokhtar
authors.initials: el M
authors.lastname: Essassi
authors.forename: Sonia
authors.initials: S
authors.lastname: Ladeira
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng