Used in organic synthesis as an intermediate for pharmaceuticals and functional materials. Serves as a building block in the preparation of bioactive molecules, particularly in the development of serotonin receptor modulators and kinase inhibitors. Commonly employed in research for constructing indole-based compounds with potential antitumor, anti-inflammatory, and neuroactive properties. Also utilized in the design of fluorescent probes and optoelectronic materials due to its conjugated structure and favorable photophysical characteristics.