Used as a key intermediate in the synthesis of pharmaceuticals and biologically active compounds, particularly in the development of indole-based drug candidates. Its protected indole structure allows selective functionalization at specific positions, making it valuable in medicinal chemistry for constructing complex heterocyclic systems. The bromo and chloro substituents serve as handles for cross-coupling reactions such as Suzuki or Buchwald-Hartwig, enabling the introduction of aryl, alkyl, or amino groups. Commonly employed in research settings for generating libraries of compounds in drug discovery programs targeting kinase inhibitors, serotonin receptor modulators, and anticancer agents.