Abstract
The title salt, C(5)H(9)N(2) (+)·Cl(-), exhibits multiple hydrogen-bonding inter-actions between the cationic imidazole moiety and the chloride anion. The protonated aromatic nitro-gen moiety displays the shortest hydrogen-bonding inter-actions while weaker hydrogen bonding is observed between the aromatic H atoms and the chloride anion. The crystal studied was refined as a two-component inversion twin with a twin ratio of 0.71 (5) to 0.29 (5).