6-(2-Methyl­phen­yl)-3-(3,4,5-trimethoxy­phen­yl)-1,2,4-triazolo[3,4-b][1,3,4]thia­diazole

In the mol­ecule of the title compound, C(19)H(18)N(4)O(3)S, the planar central heterocylic ring system is oriented with respect to the trimethoxy­phenyl and 2-methyl­phenyl rings at dihedral angles of 4.43 (3) and 4.32 (3)°, respectively. The dihedral angle between the two benzene rings is 7.65 (4)°. In the crystal structure, inter­molecular C—H⋯N hydrogen bonds link the mol­ecules into centrosymmetric R (2) (2)(18) dimers. These dimers are connected via a C—H⋯π contact between the 2-methyl­phenyl and trimethoxy­phenyl rings, and a π–π contact between the thia­diazole and trimethoxy­phenyl rings [interplanar distance 3.51 Å, dihedral angles 4.17(4)°]. An intramolecular C—H⋯N hydrogen bond is also present.