Used primarily as a key intermediate in the synthesis of polymers and resins, particularly in the production of high-performance engineering plastics. It plays a crucial role in the manufacture of polyether ether ketone (PEEK) and other thermoplastics, which are valued for their thermal stability, mechanical strength, and chemical resistance. Additionally, it is employed in the development of crosslinking agents for coatings and adhesives, enhancing durability and performance in harsh environments. Its application extends to the pharmaceutical industry, where it serves as a building block for certain active pharmaceutical ingredients (APIs).