Used as a crosslinking agent in polymer chemistry, particularly in the synthesis of conjugated microporous polymers and covalent organic frameworks. Its multiple bromomethyl groups enable efficient functionalization and network formation through nucleophilic substitution reactions. Also employed in the preparation of flame retardants due to the high bromine content, which enhances thermal stability and reduces flammability in organic materials. Additionally, serves as a building block in organic electronics and sensor materials where rigid aromatic structures with controlled spacing are required.