Used as a key intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research. It serves as a building block for heterocyclic compounds with potential applications in drug development, especially in the design of kinase inhibitors and central nervous system agents. Its bromo functional group allows for further cross-coupling reactions, enabling the introduction of various substituents to tailor molecular properties. Commonly employed in medicinal chemistry for structure-activity relationship studies due to its rigid, fused ring system that can enhance binding selectivity and metabolic stability.