Cinnarizinium bis­(p-toluene­sulfonate) dihydrate

The asymmetric unit of the title salt [systematic name: 1-benzhydryl-4-cinnamylpiperazine-1,4-diium bis­(p-toluene­sulfonate) dihydrate], C₂₆H₃₀N₂²⁺·2C₇H₇O₃S⁻·2H₂O, consists of a diprotonated cinnarizinium cation hydrogen bonded through two water mol­ecules to two independent p-toluene­sulfonate anions, one which is disordered over two sets of sites in a 0.793 (3):0.207 (3) ratio. In the cation, the piperazine ring adopts a chair configuration and contains two positively charged N atoms with quarternery character. The dihedral angle between the two benzene rings in the benzhydr­yl group is 71.8 (1)°. The benzene ring flanked opposite the piperazine ring is twisted by 75.9 (9) and 8.8 (3)° from these two benzene rings. In the crystal, the [N—H...O_water—H...O([pdbond]S)]₂ hydrogen-bonded asymmetric unit is connected by further O—H...O hydrogen bonds linking the components into chains along [100].