| C20H18N3O4+·Cl−·2H2O | F(000) = 912 |
| Mr = 435.85 | Dx = 1.434 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| a = 12.0401 (6) Å | Cell parameters from 8573 reflections |
| b = 15.4829 (7) Å | θ = 2.6–26.6° |
| c = 11.2543 (6) Å | µ = 0.23 mm−1 |
| β = 105.7191 (17)° | T = 100 K |
| V = 2019.52 (17) Å3 | Plate, colourless |
| Z = 4 | 0.18 × 0.18 × 0.05 mm |