Used as a crosslinking agent in polymer chemistry, particularly in the synthesis of conjugated microporous polymers and organic frameworks. Its dual bromomethyl groups readily undergo alkylation reactions, making it valuable in constructing rigid, aromatic networks for applications in gas storage, catalysis, and optoelectronic materials. It is also employed in the preparation of fluorescent dyes and organic semiconductors due to its extended aromatic structure. Additionally, it serves as a building block in medicinal chemistry for designing bioactive molecules and molecular probes.