N-[2-(2-Chloro-phen-yl)-2-hydroxy-ethyl]propan-2-aminium hemioxalate.

The asymmetric unit of the title compound, C(11)H(17)ClNO(+)·0.5C(2)O(4) (2-), consists of one N-[2-(2-chloro-phen-yl)-2-hydroxy-ethyl]propan-2-ammonium cation and one-half of a centrosymmetric oxalate anion. In the cation, the C/C/N plane of the ethyl-ammonium group is almost perpendicular to the benzene ring, with a dihedral angle of 88.72 (17)°. In the crystal structure, the two components are connected by O-H⋯O and N-H⋯O hydrogen bonds, forming a supra-molecular tape along the a axis. Between the tapes, a C-H⋯O inter-action is observed.