| C2H5N4+·C5H3N2O2− | F(000) = 432 |
| Mr = 208.19 | Dx = 1.526 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| a = 7.0599 (5) Å | Cell parameters from 1298 reflections |
| b = 12.1868 (8) Å | θ = 2.6–19.7° |
| c = 10.8385 (6) Å | µ = 0.12 mm−1 |
| β = 103.593 (4)° | T = 296 K |
| V = 906.40 (10) Å3 | Block, colourless |
| Z = 4 | 0.09 × 0.04 × 0.03 mm |