Used primarily as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of selective serotonin reuptake inhibitors (SSRIs) and other central nervous system agents. Its structure supports functionalization at multiple sites, making it valuable in medicinal chemistry for creating analogs with enhanced biological activity. Commonly employed in research settings to develop potential anti-anxiety, antidepressant, and antipsychotic drugs. Also utilized in the preparation of fluorinated indole derivatives, which are of interest due to their improved metabolic stability and bioavailability in drug candidates.