Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other biologically active molecules. Its structure supports the construction of complex heterocyclic systems found in certain anticancer and anti-inflammatory agents. The bromo and chloro substituents allow for further functionalization via cross-coupling reactions, making it valuable in medicinal chemistry research. Also employed in the preparation of fluorescent probes and imaging agents due to the isoquinoline core’s photophysical properties.