Used primarily as an intermediate in the synthesis of pharmaceuticals and fine chemicals. Its aromatic structure and reactive chlorine group make it suitable for cross-coupling reactions, such as Suzuki or Ullmann reactions, enabling the construction of complex organic molecules. It is also employed in the development of organic semiconductors and optoelectronic materials due to its extended π-system, which can enhance charge transport and light absorption properties in thin-film devices. Additionally, it serves as a building block in the preparation of liquid crystals and functional dyes.