(Hexamethylbenzene)ruthenium(II) dichloride dimer is widely used in catalysis, particularly in organic synthesis. It serves as a precursor for various ruthenium-based catalysts, which are effective in hydrogenation, transfer hydrogenation, and C-H activation reactions. This compound is valuable in the production of fine chemicals and pharmaceuticals due to its ability to facilitate selective transformations. Additionally, it is employed in research for developing new catalytic processes, especially in asymmetric synthesis, where it helps create chiral molecules with high enantioselectivity. Its stability and reactivity make it a versatile tool in both academic and industrial chemistry.