organic compounds
The title compound, C9H11N4O2S, consisting of a pyrimidine ring and a thiourea carboxylic acid methyl ester, possesses mirror symmetry and an intramolecular N—HN hydrogen bond. In the crystal structure, N—HS hydrogen bonds link symmetry-related molecules to form dimers, which in turn are linked by a C—HO hydogen bond to form a two-dimensional planar structure.