Used primarily as a crosslinking agent in polymer chemistry, this compound enables the formation of stable networks in polymeric materials due to the presence of reactive bromomethyl groups. These groups readily undergo alkylation or nucleophilic substitution reactions, making the compound valuable in the synthesis of functionalized polymers, dendrimers, and porous organic frameworks. It is also employed in the modification of resins and coatings to enhance thermal and mechanical stability. Additionally, it serves as a building block in the preparation of conjugated systems for electronic materials and specialty membranes.