Used primarily as a chemical intermediate in the synthesis of flame retardants and plasticizers for polymers. It plays a role in modifying surface properties of materials, enhancing thermal stability in engineering plastics, and serving as a crosslinking agent in specialty resins. Due to its reactivity with hydroxyl and amino groups, it is also explored in controlled release systems and polymer-bound catalysts. Handling requires caution due to potential hydrolytic instability and corrosive byproducts.