| K+·C6H9N4O4−·H2O | F(000) = 1072 |
| Mr = 258.29 | Dx = 1.586 Mg m−3 |
| Orthorhombic, I222 | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: I 2 2 | Cell parameters from 24 reflections |
| a = 7.3883 (15) Å | θ = 14–16° |
| b = 10.087 (2) Å | µ = 0.51 mm−1 |
| c = 29.031 (6) Å | T = 293 K |
| V = 2163.5 (8) Å3 | Prism, yellow |
| Z = 8 | 0.21 × 0.14 × 0.11 mm |