Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other biologically active molecules. Its structure allows for selective functionalization at multiple sites, making it valuable in medicinal chemistry for building complex heterocyclic systems. The aldehyde and nitrile groups serve as reactive handles for further transformations such as condensation, reduction, or cyclization reactions. Commonly employed in research settings for the preparation of indole-based drug candidates targeting cancer, inflammation, and central nervous system disorders.