Acta Crystallographica Section E: Structure Reports Online, cilt.63, sa.3, 2007 (SCI-Expanded)
In the mol-ecular structure of the title compound, C8H7N5O3S, the thia-zole ring is oriented with respect to the barbituric acid ring at a dihedral angle of 5.14 (9)°. In the crystal structure, inter-molecular N - H⋯N and N - H⋯O hydrogen bonds link the mol-ecules, forming a layer parallel to the ac plane. © International Union of Crystallography 2007.