chemical_shift intensity peak_position_ppm 21.15 21.150000 1.000000 37.97 37.970000 1.000000 33.37 33.370000 1.000000 17.97 17.970000 1.000000 40.69 40.690000 1.000000 38.79 38.790000 1.000000 29.07 29.070000 1.000000 45.34 45.340000 1.000000 71.74 71.740000 1.000000 73.67 73.670000 1.000000 122.13 122.130000 1.000000 149.94 149.940000 1.000000