An aromatic compound is a type of chemical compound that contains a ring structure with alternating double bonds, known as a benzene ring. These compounds are characterized by their stability and unique properties, which arise from the delocalization of electrons within the ring. Aromatic compounds often have distinct smells, which is why they are called "aromatic." Common examples of aromatic compounds include toluene, xylene, and naphthalene. They are widely used in various industries, including the production of dyes, plastics, and pharmaceuticals. The presence of the aromatic ring often influences the chemical behavior and reactivity of these compounds.