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Nitrogen occurs in all organisms, primarily in amino acids (and thus proteins), in the nucleic acids (DNA and RNA) and in the energy transfer molecule adenosine triphosphate. The human body contains about 3% by mass of nitrogen, the fourth most abundant element in the body after oxygen, carbon, and hydrogen.
Amines make up several of the drugs (both legal and illegal) that we produce in the world. Amines and amides are classes of organic molecules that contain nitrogen in the functional group. Amines have a simple âNH2 attached at some point along the hydrocarbon chain while amides have the same âNH2 as well as a double bonded oxygen attached to the same carbon atom.