| C11H17N2O+·C7H4NO4− | F(000) = 760 |
| Mr = 359.38 | Dx = 1.344 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| a = 7.5174 (5) Å | Cell parameters from 3934 reflections |
| b = 7.9761 (5) Å | θ = 2.7–27.9° |
| c = 29.860 (2) Å | µ = 0.10 mm−1 |
| β = 97.322 (6)° | T = 296 K |
| V = 1775.8 (2) Å3 | Block, yellow |
| Z = 4 | 0.50 × 0.50 × 0.40 mm |