| C17H12Cl2N2O | F(000) = 680 |
| Mr = 331.19 | Dx = 1.423 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| a = 5.8511 (6) Å | Cell parameters from 5578 reflections |
| b = 12.5544 (15) Å | θ = 1.9–30.8° |
| c = 21.069 (2) Å | µ = 0.42 mm−1 |
| β = 92.666 (8)° | T = 296 K |
| V = 1546.0 (3) Å3 | Stick, colorless |
| Z = 4 | 0.74 × 0.29 × 0.05 mm |