Used as a crosslinking agent in polymer chemistry, particularly in the production of ion-exchange resins and specialty polymers. It helps create three-dimensional network structures that enhance thermal and chemical stability of resins. Also employed in the synthesis of cyclic compounds and macrocycles due to its bifunctional reactivity. Its ability to bridge molecular units makes it valuable in organic synthesis for building rigid, aromatic frameworks. Historically, it has been explored in the development of chemical warfare agents, but current applications are primarily confined to controlled industrial and research settings.