title: 4-{2-[4-(Dimethyl-amino)-phen-yl]ethen-yl}-1-methyl-pyridinium 3,5-dicarb-oxy-benzene-sulfonate methanol monosolvate.
abstract: In the crystal structure of the title solvated salt, C(16)H(19)N(2) (+)·C(8)H(5)O(7)S(-)·CH(3)OH, the anions and the methanol solvent mol-ecules are linked by O-H⋯O hydrogen bonds. The cations and anions are packed as alternate layers parallel to (11[Formula: see text]). The crystal structure is further stabilized by a π-π inter-action between the pyridinium and benzene rings of the cations, with a centroid-centroid distance of 3.5492 (4) Å.
authors.forename: Liang
authors.initials: L
authors.lastname: Li
authors.forename: Huijuan
authors.initials: H
authors.lastname: Cui
authors.forename: Zhou
authors.initials: Z
authors.lastname: Yang
authors.forename: Xutang
authors.initials: X
authors.lastname: Tao
authors.forename: Huai
authors.initials: H
authors.lastname: Yang