| C11H17N2O+·C4H3O4− | F(000) = 656 |
| Mr = 308.33 | Dx = 1.335 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| a = 9.063 (1) Å | Cell parameters from 3315 reflections |
| b = 6.4956 (9) Å | θ = 2.7–27.8° |
| c = 26.093 (3) Å | µ = 0.10 mm−1 |
| β = 93.18 (1)° | T = 296 K |
| V = 1533.7 (3) Å3 | Block, colourless |
| Z = 4 | 0.48 × 0.44 × 0.32 mm |