Bis{3-amino-1-carbamo-thioyl-5-[(2-{[(5-methyl-1H-imidazol-3-ium-4-yl)meth-yl]sulfan-yl}eth-yl)amino]-1H-1,2,4-triazol-4-ium} hexa-chloridobismuthate(III) nitrate dihydrate.

The asymmetric unit of the title hydrated salt, (C10H18N8S2)2[BiCl6]NO3·2H2O, contains two independent 3-amino-1-carbamo-thioyl-5-[(2-{[(5-methyl-1H-imidazol-3-ium-4-yl)meth-yl]sulfan-yl}eth-yl)amino]-1H-1,2,4-triazol-4-ium cations, one hexa-chloridobismuthate anion, one nitrate anion and two solvent water mol-ecules. The dihedral angles between the imidazole and triazole rings in the cations are 44.7 (3) and 89.4 (3)°. The Bi(III) ion is coordinated by six chloride ligands in a slightly distorted octa-hedral geometry. In each cation, an intra-molecular N-H⋯S hydrogen bond is observed. In the crystal, N-H⋯Cl, N-H⋯S, N-H⋯O, O-H⋯Cl, O-H⋯S and O-H⋯O hydrogen bonds connect the components into a three-dimensional network. In addtion, π-π stacking inter-actions between inversion-related triazole rings are observed, with a centroid-centroid distance of 3.322 (3) Å