Used primarily in the synthesis of pharmaceutical intermediates, particularly in the development of neuroactive compounds. It serves as a key building block in the preparation of serotonin receptor modulators and tryptamine-derived analogs. Its nitrile and amine functional groups allow for further chemical modifications, making it valuable in medicinal chemistry for creating libraries of bioactive molecules. Commonly employed in research settings for studying central nervous system disorders, including depression, anxiety, and neurodegenerative diseases. Also utilized in the production of fluorescent probes due to its indole backbone, which can be tailored for specific detection in biochemical assays.