Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of serotonin receptor modulators and other central nervous system agents. Its halogenated indole structure allows for selective functionalization, making it valuable in medicinal chemistry for creating analogs with enhanced biological activity. Commonly employed in cross-coupling reactions such as Suzuki or Buchwald-Hartwig to build complex molecules for drug discovery research. Also utilized in the preparation of fluorescent probes and agrochemicals due to its stable aromatic framework and reactivity profile.