3-(Ammonio­meth­yl)pyridinium dibromide

In the title salt, C(6)H(10)N(2) (2+)·2Br(−), the non-H atoms of the 3-methyl­pyridinium unit of the cation are almost coplanar (r.m.s. deviation = 0.0052 Å). In the crystal, the dications and Br anions are linked by a combination of six hydrogen bonds, viz. one N(py)—H⋯Br, two C—H⋯Br and three H(2)N–H⋯Br, into supra­molecular layers, parallel to the bc plane, composed of alternating R(2)(4)(10) and R(2)(4)(8) loops. Weak π–π inter­actions between cationic rings with centroid–centroid distances of 3.891 (2) Å are also observed.