Used as an intermediate in the synthesis of high-performance polymers, particularly in the production of sulfone-based engineering plastics. These materials exhibit excellent thermal stability, mechanical strength, and resistance to hydrolysis and oxidation, making them suitable for aerospace, automotive, and medical device applications. Also employed in the development of specialty membranes for filtration and separation processes due to its chemical inertness and durability. Additionally, it has been explored in the formulation of flame-retardant additives and as a building block in certain electronic materials.