7-Chloro-4-(2-hy­droxy­ethyl­amino)­quinolin-1-ium chloride

In the title salt, C₁₁H₁₂ClN₂O⁺·Cl⁻, the ten non-H atoms comprising the quinolinium residue are coplanar (r.m.s. deviation = 0.041 Å) and the hy­droxy­ethyl group is approximately perpendicular to this plane [C_ring—N—C_methyl­ene—C torsion angle = −74.61 (18)°]. A supra­molecular chain aligned along [101] mediated by charge-assisted O/N—H...Cl⁻ hydrogen bonds features in the crystal packing. Chains are connected into a three-dimensional architecture by C—H...O(hy­droxy) inter­actions.