Used as an intermediate in the synthesis of high-performance polymers and resins, particularly in the production of specialty polyesters and copolyesters. It contributes to improved thermal stability and mechanical strength in polymer materials. Commonly applied in coatings, adhesives, and engineering plastics where enhanced durability and resistance to heat are required. Also utilized in the development of optical materials and electronic encapsulants due to its favorable solubility and reactivity profile.