| C21H21Cl2NO2 | F(000) = 1632 |
| Mr = 390.29 | Dx = 1.306 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: -P 2ybc | Cell parameters from 5029 reflections |
| a = 17.4615 (13) Å | θ = 1.2–28.5° |
| b = 19.0291 (15) Å | µ = 0.34 mm−1 |
| c = 11.9501 (9) Å | T = 293 K |
| β = 91.825 (5)° | Block, yellow |
| V = 3968.7 (5) Å3 | 0.22 × 0.20 × 0.18 mm |
| Z = 8 |