Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of indole-based drugs targeting neurological and inflammatory conditions. Its functionalized structure allows for selective derivatization, making it valuable in medicinal chemistry for constructing complex heterocyclic systems. Commonly employed in research settings to design serotonin receptor modulators and kinase inhibitors. Also utilized in the preparation of fluorescent probes and bioactive molecules due to its reactive halogen groups, which facilitate cross-coupling reactions.