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The title compound, C 19 H 16 N 4 , is one of the few known 3,7-diaryl-1,2,4-triazolo[4,3- c ]pyrimidines. The triazolopyrimidine unit is essentially planar (r.m.s. deviation = 0.048 Å). The phenyl ring and the heterocyclic core subtend a dihedral angle of only 15.09 (6)°, whereas the  m -tolyl ring is twisted by 71.80 (6)° out of the plane of the triazole ring. Two C—H⋯N hydrogen bonds and π–π stacking inter­actions [centroid–centroid distance = 3.7045 (8) Å] stabilize the crystal packing.

5-Methyl-3-(3-methylphenyl)-7-phenyl-1,2,4-triazolo[4,3-c]pyrimidine