Interactive IR spectrum of paracetamol

Click on the peaks, labelled with red markers, to display the corresponding molecular vibration.
The spectrum of this molecule is quite complex but the characteristic band, near 1750 cm-1, of the C=O group is clearly present. The band at 3500 cm-1 contains both absorptions due to the O-H and N-H stretching vibrations: click on the left and right hand side of the band to see both.