Aromatic compounds are a special class of chemicals known for their distinct smell and unique structure. They contain a ring of carbon atoms with alternating double bonds, which gives them stability and special properties. Common examples include benzene, toluene, and naphthalene. These compounds are widely used in everyday products, from perfumes to dyes. The term "aromatic" originally referred to the pleasant scents of these compounds. However, it now describes their chemical structure rather than their smell. Aromatic compounds play a crucial role in various industries, including pharmaceuticals and agrochemicals, due to their ability to undergo specific chemical reactions.