Used in organic synthesis as an intermediate for pharmaceuticals and biologically active compounds. Its structure supports the development of indole-based derivatives, which are important in medicinal chemistry for their potential as kinase inhibitors or anti-inflammatory agents. Commonly employed in the preparation of heterocyclic compounds through condensation or cyclization reactions, especially in the design of novel drug candidates targeting neurological or oncological pathways. Also utilized in research settings to develop fluorescent probes due to the aldehyde group’s reactivity and the indole scaffold’s photophysical properties.