Used primarily as a reactive intermediate in organic synthesis, especially in the production of pharmaceuticals, agrochemicals, and fine chemicals. Its vinyl and bromo functional groups allow it to participate in coupling reactions such as Suzuki and Heck reactions, making it valuable in building complex aromatic compounds. Also employed in the synthesis of polymers and resins where controlled cross-linking or functionalization is required. Additionally, it serves as a building block in the development of liquid crystals and optoelectronic materials due to its conjugated structure.