In the title compound, [PtCl(NH3)(2)(C9H9NO)]NO3, the complex cation f
eatures square-planar coordination around the Pt atom, with a mean dev
iation of 0.0007 (5) Angstrom. The aromatic 2,5-dimethylbenzoxazole ri
ng is planar with a mean deviation of 0.008 (8) Angstrom. The dihedral
angle between these two ring planes is 71.0 (2)degrees.