C5H5ClN2	F(000) = 264
Mr = 128.56	Dx = 1.427 Mg m−3
Monoclinic, P21/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybc	Cell parameters from 1473 reflections
a = 11.149 (8) Å	θ = 3.7–27.2°
b = 5.453 (4) Å	µ = 0.52 mm−1
c = 9.844 (7) Å	T = 296 K
β = 90.581 (12)°	Block, yellow
V = 598.5 (7) Å3	0.38 × 0.32 × 0.22 mm
Z = 4