91影视

Phenacetin was earlier employed as an analgesic and a drug to reduce fever. Today, it is banned as it results in several renal diseases and cancers.

The information given in an ¹H NMR spectra is helpful in predicting the structure of several compounds. The solvents used for analyzing NMR should not possess hydrogen atoms as they may interfere with the spectral analysis

IR spectroscopy is also known as 鈥渧ibrational spectroscopy.鈥滻R spectra help recognize the functional groups present in a particular molecule.

The IR absorption at 3300cm^-1 and 1680cm^-1 indicates the presence of N-H bond and amide linkage. In the NMR data, the triplet at 1.4 indicates the presence of CH₃ adjacent to CH₂ .The singlet at 2.2 shows the presence of ${\mathrm{CH}}_3\mathrm{C}=\mathrm{O}$group.

A quartet at 3.9 indicates the presence of CH₃ adjacent to CH₂ .The doublet at 6.8 indicates two hydrogens on the benzene ring. The singlet at 7.2 shows the presence of NH group.

The doublet at 7.4 indicates the presence of two hydrogens on the benzene ring. The structure of phenacetin can be given as:

Structure of phenacetin