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Crystal structure of 4-methyl-sulfanyl-2-(2H-tetra-zol-2-yl)pyrimidine.The title compound, C6H6N6S, crystallized with two independent mol-ecules (A and B) in the asymmetric unit. The conformation of the two mol-ecules differs slightly. While the tetra-zole ring is inclined to the pyrim-idene ring by 5.48 (7) and 4.24 (7)° in mol-ecules A and B, respectively, the N-C-S-C torsion angles of the thio-methyl groups differ by ca 180°. In the crystal, the A and B mol-ecules are linked via a C-H⋯N hydrogen bond. They stack along the b-axis direction forming columns within which there are weak π-π inter-actions present [shortest inter-centroid distance = 3.6933 (13) Å].