Used primarily as an intermediate in organic synthesis, especially in the development of pharmaceuticals and biologically active compounds. Its halogenated structure makes it valuable in cross-coupling reactions, such as Suzuki or Heck reactions, enabling the construction of complex indole derivatives. These derivatives are often explored for their potential in medicinal chemistry, including as candidates for anticancer, antiviral, or anti-inflammatory agents. Also employed in the synthesis of functional materials and in research settings to probe biological systems due to the indole core’s prevalence in natural products and neurotransmitters.