| C9H10N2O4 | F(000) = 440 |
| Mr = 210.19 | Dx = 1.491 Mg m−3 |
| Monoclinic, P21/n | Cu Kα radiation, λ = 1.54184 Å |
| a = 10.8740 (8) Å | Cell parameters from 3893 reflections |
| b = 7.0136 (6) Å | θ = 5.3–69.2° |
| c = 12.2891 (12) Å | µ = 1.02 mm−1 |
| β = 92.313 (5)° | T = 90 K |
| V = 936.48 (14) Å3 | Needle, yellow |
| Z = 4 | 0.32 × 0.09 × 0.04 mm |