Used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions, to construct biaryl compounds which are key intermediates in pharmaceuticals and agrochemicals. Its boronic acid group enables efficient carbon-carbon bond formation under mild conditions. Commonly employed in the development of drug candidates where aryl-aryl linkages are required. The ester and chloro substituents allow for further functionalization, making it a versatile building block in medicinal chemistry and materials science.