Used as a monomer in the synthesis of high-performance polymers, particularly in the production of polycarbonates and polyurethanes. Its rigid fluorene core contributes to thermal stability and mechanical strength, making the resulting materials suitable for engineering plastics and optical applications. Also employed in the development of crosslinking agents for coatings and adhesives, enhancing durability and chemical resistance. Additionally, it serves as an intermediate in the preparation of specialty resins used in electronic encapsulation and photoresists.