Used as a catalyst precursor in homogeneous catalysis, particularly in olefin metathesis and hydrogenation reactions. Its pentaphenylcyclopentadienyl ligand provides steric bulk and electronic stabilization, enhancing catalyst longevity and selectivity. Commonly employed in the synthesis of complex organic molecules, including pharmaceuticals and fine chemicals, where high catalytic efficiency under mild conditions is required. Also utilized in research settings for developing new ruthenium-based catalytic systems.