Tris(triphenylphosphine)ruthenium(II) dichloride is widely used in catalysis, particularly in hydrogenation and transfer hydrogenation reactions. It facilitates the reduction of various organic compounds, including alkenes, ketones, and imines, making it valuable in synthetic organic chemistry. The compound is also employed in the activation of C-H bonds, enabling the functionalization of hydrocarbons. Additionally, it plays a role in the synthesis of fine chemicals and pharmaceuticals, where selective hydrogenation is crucial. Its stability and efficiency in catalytic processes make it a preferred choice in industrial and academic research settings.