Used as a key intermediate in organic synthesis, particularly in the preparation of functionalized polymers and conjugated materials. Its terminal alkyne group enables click chemistry reactions, such as copper-catalyzed azide-alkyne cycloaddition (CuAAC), making it valuable in pharmaceutical research, bioconjugation, and materials science. The bromine moiety allows for further functionalization via cross-coupling reactions like Suzuki or Heck couplings, enabling the construction of complex molecular architectures. It is also employed in the development of specialty monomers for advanced polymer systems and in the synthesis of probes for chemical biology.