2-(4-Meth­oxy­phenyl)-2-oxoethan­aminium chloride

In the cation of the title compound, C₉H₁₂NO₂⁺·Cl⁻, the dihedral angle between the 2-oxoethanaminium N—C—C(=O)– plane [maximum deviation = 0.0148 (12) Å] and the benzene ring is 7.98 (8)°. The meth­oxy group is approximately in-plane with the benzene ring, with a C—O—C—C torsion angle of −2.91 (18)°. In the crystal, the cations and chloride anions are connected by N—H...Cl and C—H...Cl hydrogen bonds, forming a layer parallel to the bc plane. A C—H...π inter­action further links the layers.