Used as a key intermediate in the synthesis of biologically active indole derivatives, particularly in pharmaceutical research. It serves in the development of serotonin receptor modulators and kinase inhibitors due to the indole scaffold’s prevalence in neuroactive compounds. The bromo group allows for further functionalization via cross-coupling reactions, making it valuable in medicinal chemistry for building complex molecules. Also employed in the preparation of fluorescent probes and labeled compounds for biochemical assays.