Used in organic synthesis as an intermediate for pharmaceuticals and bioactive compounds. Serves as a building block in the preparation of tryptamine and tryptophan derivatives, which are important in neuroscience and drug development. Commonly employed in the synthesis of serotonin receptor ligands and psychedelic research compounds due to its structural similarity to naturally occurring indoles. Also utilized in the development of fluorescent probes and dyes, benefiting from the indole scaffold’s photophysical properties. Appears in medicinal chemistry research for designing new agents with potential antidepressant, antipsychotic, or anticancer activity.