Used in organic synthesis as an intermediate for pharmaceuticals and bioactive compounds. Its alkyne and indole functional groups allow participation in click chemistry, particularly copper-catalyzed azide-alkyne cycloaddition (CuAAC), making it valuable in drug discovery and development of labeled biomolecules. Commonly employed in the synthesis of indole-based derivatives with potential antimicrobial, antiviral, or anticancer activities. Also utilized in materials science for constructing functional polymers and fluorescent probes due to its aromatic structure and reactivity.