C11H17N2O+·C7H4BrO2−·H2O	Z = 2
Mr = 411.28	F(000) = 424
Triclinic, P1	Dx = 1.450 Mg m−3
a = 6.2004 (8) Å	Mo Kα radiation, λ = 0.71073 Å
b = 7.4957 (9) Å	Cell parameters from 3927 reflections
c = 20.440 (2) Å	θ = 2.8–27.9°
α = 85.08 (1)°	µ = 2.21 mm−1
β = 87.37 (1)°	T = 293 K
γ = 85.00 (1)°	Plate, colourless
V = 942.17 (19) Å3	0.48 × 0.44 × 0.16 mm