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 structure supports the construction of complex indole-based molecules found in bioactive compounds. Commonly employed in research settings for drug discovery, especially in the design of anti-inflammatory, antidepressant, and antipsychotic drugs. Also utilized in the preparation of fluorescent probes and dyes due to the indole core’s favorable photophysical properties.