Widely used in the production of unsaturated polyester resins, which are essential for fiberglass-reinforced plastics in automotive, marine, and construction industries. Commonly employed in the synthesis of surface coatings, adhesives, and lubricant additives due to its ability to improve adhesion and thermal stability. Used as a key intermediate in the manufacture of agricultural chemicals, including herbicides and fungicides. Important in the modification of polymers and resins through copolymerization, enhancing properties like heat resistance and mechanical strength. Utilized in the production of succinic anhydride and other specialty chemicals used in pharmaceuticals and food additives.