Used in organic synthesis as a key building block for Suzuki-Miyaura cross-coupling reactions, enabling the formation of carbon-carbon bonds in pharmaceutical and agrochemical research. Its boronic acid functionality allows for efficient and selective coupling with aryl halides, making it valuable in the development of complex heterocyclic compounds. Commonly applied in medicinal chemistry for constructing isoquinoline-based scaffolds, which are prevalent in bioactive molecules and drug candidates. The hydrochloride salt form enhances stability and handling in air-sensitive reactions.