Used as an intermediate in the synthesis of pharmaceuticals and biologically active compounds, particularly in the development of kinase inhibitors and anticancer agents. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for constructing complex indole-based molecules. Also employed in research settings to develop fluorescent probes and sensors due to the electron-withdrawing nitro and bromo groups enhancing photophysical properties. Commonly utilized in cross-coupling reactions such as Suzuki or Heck reactions to build more complex heterocyclic systems for drug discovery.