This chemical is primarily used as a high-performance polymer precursor in the production of polyethersulfone (PES) resins. These resins are valued for their excellent thermal stability, mechanical strength, and chemical resistance, making them suitable for applications in the automotive, aerospace, and electronics industries. It is also employed in the manufacturing of membranes for water purification and gas separation due to its ability to form durable and selective barriers. Additionally, it finds use in coatings and adhesives where high-temperature performance and durability are required.