Used as a crosslinking agent in polymer chemistry, particularly in the synthesis of porous organic frameworks and covalent triazine frameworks (CTFs). Its multiple bromomethyl groups enable efficient alkylation and functionalization reactions, making it valuable in constructing rigid, three-dimensional network polymers for gas storage, catalysis, and adsorption applications. Also employed in the preparation of flame-retardant materials due to the high bromine content, which imparts thermal stability and fire resistance to polymers. Additionally, serves as a precursor in supramolecular chemistry for building well-defined macromolecular architectures through stepwise substitution reactions.