The title compound, C6H8N6, crystallizes as an N - H⋯N hydrogen-bond-linked dimer of two almost identical mol-ecules in the asymmetric unit. Both of the mol-ecules are almost planar (rms deviations of 0.0186 and 0.0296 Å in the two molecules) and their hydrazino groups are turned towards the pyrazole rings. The dimers are arranged into chains via inter-molecular N - H⋯N hydrogen bonds between the hydrazino groups and the N atoms of the pyrimidine rings of both types of the mol-ecules, linking the mol-ecules into a C(7) graph-set motif along . The methyl groups and the N atoms of the pyrazole rings form weak C - H⋯N hydrogen bonds, which connect chains of the dimers in a C(4) motif parallel to .
|Number of pages||2|
|Journal||Acta Crystallographica Section E: Structure Reports Online|
|Publication status||Published - 2009|