title: 4-(4-Nitro-benzene-sulfonamido)pyridinium bromide.
abstract: In the title compound, C(11)H(10)N(3)O(4)S(+)·Br(-), the benzene ring makes an angle of 88.4 (2)° with the pyridinium ring. The dihedral angle between the nitro group and the benzene ring is 16.5 (2)°. The ions in the crystal structure are linked by a combination of inter-molecular N-H⋯Br and non-conventional C-H⋯Br and C-H⋯O hydrogen bonds, forming a three-dimensional network.
authors.forename: Liang
authors.initials: L
authors.lastname: Zhao
authors.forename: Qi-Fei
authors.initials: QF
authors.lastname: Yu
authors.forename: Qiong
authors.initials: Q
authors.lastname: Wu