Used primarily as an intermediate in the synthesis of pharmaceuticals and biologically active compounds. Its structure supports the development of indole-based derivatives, which are important in medicinal chemistry, particularly in the creation of serotonin receptor modulators and anticancer agents. It also serves in the research of novel organic transformations due to the reactivity of its halogen substituents, enabling cross-coupling reactions such as Suzuki or Buchwald-Hartwig aminations. Additionally, it finds use in the preparation of fluorescent probes and functional materials in agrochemical and dye industries.