C17H9Cl2NO3	F(000) = 704
Mr = 346.15	Dx = 1.582 Mg m−3
Monoclinic, P21/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybc	Cell parameters from 4629 reflections
a = 5.6011 (2) Å	θ = 4.6–32.5°
b = 8.7237 (3) Å	µ = 0.46 mm−1
c = 29.7957 (9) Å	T = 200 K
β = 93.504 (3)°	Plate, pale yellow
V = 1453.16 (8) Å3	0.49 × 0.41 × 0.12 mm
Z = 4