chemical_shift intensity peak_position_ppm 166.1 1.0 166.1 70.9 1.0 70.9 28.7 1.0 28.7 47.8 1.0 47.8 127.5 1.0 127.5 159.5 1.0 159.5 58.6 1.0 58.6 74.0 1.0 74.0 78.5 1.0 78.5