Widely used in Suzuki-Miyaura cross-coupling reactions, this compound serves as a key reagent for forming carbon-carbon bonds in organic synthesis. Its stability and reactivity make it valuable in pharmaceutical development, particularly for constructing biaryl scaffolds found in active drug molecules. The boronic ester group allows for selective transformations under mild conditions, which is advantageous in complex molecule assembly. It is also employed in the synthesis of functional materials, including conjugated polymers and sensors, where precise molecular architecture is critical. The hydrochloride salt form enhances handling and storage by improving solid-state stability.