Used as an intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the preparation of iodo-substituted aromatic compounds for drug development. Serves as a building block in organic synthesis where the iodine moiety allows for further functionalization via cross-coupling reactions such as Suzuki or Heck reactions. Employed in research settings to introduce halogenated aromatic structures into more complex molecules. Its multiple chlorine atoms provide stability and influence electronic properties in final products. Also utilized in the development of certain liquid crystals and specialty polymers requiring halogenated benzene derivatives.