Widely used in the production of unsaturated polyester resins, which are essential for fiberglass-reinforced plastics in automotive parts, marine vessels, and construction materials. Key component in the synthesis of surface coatings, adhesives, and lubricant additives due to its ability to improve adhesion and thermal stability. Employed in the manufacture of agricultural chemicals, including herbicides and insecticides, enhancing their effectiveness and stability. Used as a crosslinking agent in polymers, improving the mechanical and thermal properties of plastics and elastomers. Important intermediate in the production of succinic anhydride and other specialty chemicals used in pharmaceuticals and industrial processes.