Pan Jian Xin, Chen Qian Wang
Hefei National Laboratory for Physical Sciences at the Microscale and Department of Materials Science & Engineering, University of Science and Technology of China, Hefei 230026, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2009 Feb 28;65(Pt 3):o652. doi: 10.1107/S1600536809006400.
The mol-ecule of the title compound, C(6)H(6)N(2)O(2)S, lies on a crystallographic mirror plane with the methyl-ene H atoms related by mirror symmetry. In the crystal packing, mol-ecules are linked into layers by inter-molecular O-H⋯N and C-H⋯O hydrogen bonds.