Used in organic synthesis as an intermediate for pharmaceuticals and bioactive compounds. The bromoindole core makes it valuable in cross-coupling reactions, particularly in the development of serotonin receptor ligands and kinase inhibitors. The hydroxyl group allows for further functionalization, enabling attachment to other molecular frameworks. Commonly employed in medicinal chemistry for constructing indole-based drug candidates targeting neurological disorders and cancer. Also utilized in the preparation of fluorescent probes and labeled compounds for biochemical assays.