Used in organic synthesis as an intermediate for pharmaceuticals and biologically active compounds. Particularly valuable in the development of serotonin receptor modulators and other neuroactive agents. Its structure serves as a building block in the preparation of indole-based derivatives with potential antitumor, antiviral, and anti-inflammatory properties. Commonly employed in medicinal chemistry research for structure-activity relationship (SAR) studies involving indole scaffolds. Also utilized in the synthesis of fluorescent probes and imaging agents due to the inherent photophysical properties of the indole core.