Crystal structure of (E)-3-{[2-(2,4-di­chloro­benzyl­idene)hydrazin-1-yl]carbon­yl}pyridinium chloride trihydrate

In the title hydrated salt, C(13)H(10)Cl(2)N(3)O(+)·Cl(−)·3H(2)O, the organic cation exhibits a dihedral angle of 8.26 (14)° between the mean planes of the pyridinium and benzene rings, and dihedral angles of 8.70 (15) and 15.93 (5)° between the mean planes of the hydrazide group and the benzene and pyridinium rings, respectively. In the crystal, N—H⋯O, N—H⋯Cl, C—H⋯O, C—H⋯Cl, O—H⋯O, O—H⋯N and O—H⋯Cl hydrogen bonds link the complex cations, chloride anions and solvent water mol­ecules into a three-dimensional network.