Used as a key intermediate in Suzuki-Miyaura cross-coupling reactions for the synthesis of complex isoquinoline derivatives. These derivatives are commonly found in pharmaceuticals and bioactive molecules, making this compound valuable in drug discovery and development. Its boronate ester group enables efficient carbon-carbon bond formation under mild conditions, particularly in the preparation of nitrogen-containing heterocyclic compounds for medicinal chemistry research. Also employed in the creation of fluorescent probes and organic electronic materials due to the isoquinoline core’s electron-transport properties.