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 indole-based compounds with potential medicinal properties. Commonly employed in research settings for synthesizing analogs in drug discovery programs, especially those targeting neurological and inflammatory pathways. Also utilized in the fabrication of fluorescent dyes and optoelectronic materials due to the inherent electronic properties of the indole scaffold.