title: 4-{2-[4-(Dimethyl-amino)-phen-yl]ethen-yl}-1-methyl-pyridinium 2-amino-3,5-dimethyl-benzene-sulfonate monohydrate.
abstract: In the crystal structure of the title compound, C(16)H(19)N(2) (+)·C(8)H(10)NO(3)S(-)·H(2)O, the cations and anions are linked by O-H⋯O and N-H⋯O hydrogen bonds, forming alternating layers parallel to the ac plane. An intra-molecular N-H⋯O hydrogen bond occurs in the anion. The crystal structure is further stabilized by π-π inter-actions, with centroid-centroid distances of 3.7240 (9) and 3.6803 (8) Å.
authors.forename: Liang
authors.initials: L
authors.lastname: Li
authors.forename: Xutang
authors.initials: X
authors.lastname: Tao
authors.forename: Huai
authors.initials: H
authors.lastname: Yang
authors.forename: Zhou
authors.initials: Z
authors.lastname: Yang