The integrals in the overview spectrum in Figure show the high consistency of the intensities of the resonances in terms of their relative proportions in the molecule: the resonance at ~1.88 ppm is arbitrarily calibrated to 2.000, the integral value for the 22 H's resonating between 0.9 and 2.6 ppm is of 22.008, equivalent to 1.00036 for one H (0.04% deviation). The resonances of H-6a=α (2.3072 ppm) and H-2a=α (2.2893 ppm) overlap in such a way that it is possible to sort out the overlapping contributions from each hydrogen visually, using the non-overlapped halves at the high and low frequency ends of the peak pattern as guidance (Figure ). However, when breaking down the 1.997H integral into three segments, the middle part reflects the two half contribution from each hydrogen (1.002) -but this is deceptive, as it is not composed of equal 0.500 halves. The same deception is evident from the integrals of the higher and lower frequency segments of 0.572 and 0.423, respectively. Their significant deviation from the 0.500 half-value proves that both resonances are of higher order, which gives rise to noticeable roof effects (i.e., peak patterns leaning towards higher frequency for both H-6a=α and H-2a=α). In fact, the quantitative disbalance is significant ~15% and (0.423 [H-6a=α] and 0.572 [H-2a=α] observed vs. 0.500 theoretical first-order value), which raises major concerns for int-qNMR.