Question

Peak frequency (ppm) Peak multiplicity (s,d,etc.) Peak integration(Number of Protons) 8.67 d, J =4.0 Hz 8.20...

Peak frequency (ppm) Peak multiplicity (s,d,etc.) Peak integration(Number of Protons)
8.67 d, J =4.0 Hz
8.20 d, J 8.7 Hz
8.07 d, J=7.6 Hz
7.88 ddd, J=1.5,7.6,7.6 Hz
7.62 d, J=8.9 Hz
7.54 m(multiplet)
5.38 dd, J=7.4, 3.6 Hz
4.79 s
3.63 dd, J=3.6,16.8
3.55 dd, J=8.5, 16.8

What is the peak integration number? This is 1' H NMR spectrum of 3-hydroxy-3-(4-nitrophenyl)-1-(2-pyridyl)-1-propanone

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