Used in organic synthesis as an intermediate for pharmaceuticals and bioactive compounds. Its structure supports the construction of complex indole-based molecules, commonly found in medicinal chemistry. The aldehyde and ester functional groups allow for diverse derivatization, such as condensation reactions, reductions, and cyclizations. Frequently employed in the development of serotonin receptor ligands, kinase inhibitors, and anti-inflammatory agents. Also applied in the synthesis of fluorescent dyes and agrochemicals due to its aromatic and electron-rich framework.