C12H8N2O6S	F000 = 316
Mr = 308.27	Dx = 1.583 Mg m−3
Orthorhombic, Pmn21	Mo Kα radiation λ = 0.71073 Å
Hall symbol: P 2ac -2	Cell parameters from 25 reflections
a = 20.260 (4) Å	θ = 10–13º
b = 5.9380 (12) Å	µ = 0.28 mm−1
c = 5.3770 (11) Å	T = 294 (2) K
V = 646.9 (2) Å3	Block, light yellow
Z = 2	0.30 × 0.20 × 0.10 mm