[2-Acet­oxy-3-(naphthalen-1-yl­oxy)prop­yl](propan-2-yl)aza­nium chloride monohydrate

The title compound, C(18)H(24)NO(3) (+)·Cl(−)·H(2)O, was synthesized by the reaction of propranolol hydro­chloride with acetyl chloride in chloro­form followed by slow evaporation in air. In the cation, the dihedral angle between the planes of the naphthalene ring system and the acetate group is 71.1 (2)°. An intra­molecular N—H⋯O hydrogen bond results in the formation of a non-planar pseudo-ring, with the ether O and the H atom displaced by −1.328 (2) and 0.65 Å, respectively, from the plane of the other ring atoms. The cation and anion are linked by an N—H⋯Cl hydrogen bond. The water molecule is linked to a methyl H atom by C—H⋯O hydrogen bond.