Used primarily in research settings as a key intermediate in the synthesis of biologically active compounds, particularly in the development of kinase inhibitors. Its structure supports interactions with enzyme active sites, making it valuable in the design of potential anticancer and anti-inflammatory agents. It is also employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its indole-dione core, which is known to exhibit affinity toward various cellular targets. Additionally, it serves as a building block in the preparation of fluorescent probes and heterocyclic derivatives for drug discovery.