Bis[(E)-1-methyl-4-styrylpyridinium] 4-bromo­benzene­sulfonate iodide

In the title compound, 2C(14)H(14)N(+)·C(6)H(4)BrO(3)S(−)·I(−), two crystallographically independent cations exist in an E configuration with respect to the C=C ethenyl bond. One cation is approximately planar, whereas the other is twisted slightly, the dihedral angles between the pyridinium and phenyl rings of each cation being 0.96 (15) and 7.05 (16)°. In the crystal structure, the cations are stacked in an anti­parallel manner along the a axis through weak C—H⋯π inter­actions and π–π inter­actions, with centroid–centroid distances of 3.5544 (19) and 3.699 (2) Å. The 4-bromobenzene­sulfonate anions and the cations are linked together by weak C—H⋯O inter­actions. A short Br⋯I contact [3.6373 (4) Å] and C—H⋯I interactions are also observed.