Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of indole-based drugs with biological activity. It serves in the preparation of compounds for potential use in antitumor, antiviral, and anti-inflammatory agents. Its structure allows for functionalization at multiple sites, making it valuable in medicinal chemistry for designing and optimizing drug candidates. Also employed in research settings to develop novel heterocyclic compounds and in the study of structure-activity relationships within indole derivatives.