Used in organic synthesis as an intermediate for pharmaceuticals and fine chemicals. Its conjugated diene structure with a bromine substituent makes it valuable in cross-coupling reactions, such as Suzuki or Heck reactions, enabling the construction of complex organic molecules. The ester group allows for further functionalization, such as hydrolysis or reduction, while the bromine serves as a leaving group for nucleophilic substitution or metal-catalyzed transformations. Commonly employed in the development of bioactive compounds and conjugated materials in medicinal and materials chemistry.