| Summary: | In the title compound, C13H15N5O2S, the acetamide N—C(=O)—C plane makes dihedral angles of 30.51 (11) and 51.93 (11)°, respectively, with the benzene ring and the pyrimidine ring. The dihedral angle between the benzene and pyrimidine rings is 43.40 (6)°. There is an intramolecular N—H...N hydrogen bond with an S(7) ring motif. In the crystal, molecules are linked by pairs of intermolecular N—H...N hydrogen bonds, forming inversion dimers with an R22(8) ring motif. The molecules are further linked by intermolecular N—H...O hydrogen bonds, forming a C(9) chain along [100]. Intermolecular C—H...π and N—H...π interactions are also observed.
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