Used as a key intermediate in Suzuki-Miyaura cross-coupling reactions, enabling the synthesis of complex organic molecules, particularly in pharmaceutical and agrochemical research. Its boronic ester group provides enhanced stability and reactivity, making it valuable for constructing biaryl compounds and functionalized aromatic systems. Commonly employed in the development of active pharmaceutical ingredients (APIs) where precise molecular architecture is required. The aldehyde and chloro functionalities allow for further selective transformations, supporting multi-step synthetic routes in medicinal chemistry.