C10H10N+·C7H3ClNO4−	Z = 2
Mr = 344.75	F(000) = 356.00
Triclinic, P1	Dx = 1.469 Mg m−3
a = 7.6858 (3) Å	Mo Kα radiation, λ = 0.71075 Å
b = 8.3615 (3) Å	Cell parameters from 19686 reflections
c = 13.5746 (5) Å	θ = 3.0–30.1°
α = 82.5485 (13)°	µ = 0.27 mm−1
β = 80.8927 (12)°	T = 185 K
γ = 65.0929 (11)°	Platelet, colorless
V = 779.33 (5) Å3	0.51 × 0.45 × 0.15 mm