Ethylbenzene is primarily used in the production of styrene, which is a key component in the manufacture of plastics, synthetic rubber, and resins. These materials are widely utilized in the packaging industry, automotive parts, and consumer goods like electronics and appliances. Additionally, ethylbenzene serves as a solvent in the formulation of paints, coatings, and adhesives, providing effective dissolution of various substances. It is also used in the chemical synthesis of other organic compounds, contributing to the production of pharmaceuticals and agrochemicals. Due to its high octane rating, ethylbenzene is sometimes blended into gasoline to improve engine performance. However, its use is carefully regulated due to potential health and environmental concerns.