Used primarily as an intermediate in the synthesis of pharmaceuticals and biologically active compounds. Its halogen substituents allow selective cross-coupling reactions, making it valuable in medicinal chemistry for developing kinase inhibitors and receptor modulators. Commonly employed in research settings to construct complex indole-based scaffolds found in anticancer, antiviral, and anti-inflammatory agents. The presence of multiple halogens enables stepwise functionalization, facilitating structure-activity relationship studies. Also utilized in the development of fluorescent probes and imaging agents due to the indole core’s inherent photophysical properties.