Used primarily as an intermediate in the synthesis of hexachlorodimethylxylenes, which are key components in the production of high-performance polymers and flame retardants. It finds application in the manufacturing of specialty resins and electrical insulation materials due to its thermal stability and resistance to degradation. Additionally, it serves as a cross-linking agent in certain polymerization processes, enhancing the mechanical and chemical resistance properties of the final polymer products. Its use is largely confined to industrial settings where controlled reactions require stable, chlorinated aromatic compounds.