title: 4-(5-Amino-1H-1,2,4-triazol-3-yl)pyridinium chloride monohydrate.
abstract: In the cation of the title compound, C(7)H(8)N(5) (+)·Cl(-)·H(2)O, the mean planes of the pyridine and 1,2,4-triazole rings form a dihedral angle of 2.3 (1)°. The N atom of the amino group adopts a trigonal-pyramidal configuration. The N atom of the pyridine ring is protonated, forming a chloride salt. In the crystal, inter-molecular N-H⋯O, N-H⋯N, N-H⋯Cl and O-H⋯Cl hydrogen bonds link the cations, anions and water mol-ecules into layers parallel to the (1, 0, ) plane.
authors.forename: Victor M
authors.initials: VM
authors.lastname: Chernyshev
authors.forename: Elena V
authors.initials: EV
authors.lastname: Tarasova
authors.forename: Anna V
authors.initials: AV
authors.lastname: Chernysheva
authors.forename: Victor B
authors.initials: VB
authors.lastname: Rybakov