1-[6-(3,5-Di­methyl­pyrazol-1-yl)-1,2,4,5-tetra­zin-3-yl]guanidin-2-ium perchlorate methanol monosolvate

In the title solvated salt, C(8)H(12)N(9) (+)·ClO(4) (−)·CH(3)OH, the dihedral angle between the tetra­zine and pyrazole rings is 26.05 (7)°. The two N atoms bonded to the 1,2,4,5-tetra­zine ring deviate from the plane defined by its four N atoms by 0.234 (2) and 0.186 (2) Å. There is an intra­molecular N—H⋯N hydrogen bond between the protonated guanidine fragment and one of the tetra­zine N atoms. In the crystal, two cations and two perchlorate anions are connected via N—H⋯O hydrogen bonds into centrosymmetric assemblies. These assemblies are further linked into a two-dimensional network parallel to (100) via bifurcated O—H⋯(N,N) hydrogen bonds formed with the bridging methanol mol­ecules.