Amide is any theoretically derived organic compound of ammonia (NH3) by replacing a hydrogen atom with an acyl group.

The generic formula of amides is:

Some amides:



The best known amide is diamide, urea. It is a white, crystalline and water soluble solid. It is one of the end products of animal metabolism eliminated by urine.

In the chemical industry, it is widely used as a chemical fertilizer to supply nitrogen to the soil, feed cattle, as a raw material to produce plastics and pharmaceuticals, sedatives and as an explosives stabilizer.

Fertilizer application in soil


The name of the amides according to IUPAC is given from the corresponding acids. The Oico termination is exchanged for AMIDA. Examples:

Ethanamide (official) or Acetamide (usual)


Diamide (Urea)