[Pt(C11H15NO2)2Cl2] is monoclinic, with space group P21H. Z=2, and lattice parametes α=13.555(6)?, b=6.487(3)?, c=15.588(5)?, β=109.42(3)?. The structure was determined by heavy-atom method and refined by "blocked cascade" full-matrix leastsquare refinement technique to R=0.0617, RwH=0.0575. The atom Pt(II) has approximate square coordination, with bond lengths Pt-N 2.065(14), 2.084(14)?; PtCl 2.285(7), 2.312(8)?. The structure contains layers of molecules hydrogen bonded together through N-H……O.