Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer therapy. It serves as a building block in medicinal chemistry due to its ability to participate in cross-coupling reactions, enabling the construction of complex heterocyclic systems. Its bromine functionality allows for selective functionalization via palladium-catalyzed reactions, making it valuable in drug discovery and development. Additionally, it has been explored in the design of antimicrobial and anti-inflammatory agents owing to the bioactive nature of isoquinoline derivatives.