uracil bmse000187 C4H4N2O2 LINE POINT HZ PPM INTENSITY REL_INT LABEL 1 4785 3765.49 7.533 9588352 17.225 1 2 4804 3757.93 7.518 9630302 17.300 2 3 6972 2898.50 5.799 8973843 16.121 3 4 6992 2890.70 5.783 9064463 16.284 4