Widely used as a highly active metathesis catalyst, this compound enables efficient ring-closing metathesis (RCM), cross-metathesis (CM), and ring-opening polymerization of cyclic olefins. It exhibits excellent functional group tolerance and stability in air and moisture, making it suitable for complex organic syntheses, including pharmaceuticals and natural products. Its robust performance allows for low catalyst loadings, improving yields and reducing purification steps. Commonly applied in the formation of macrocyclic structures and advanced intermediates in materials science and medicinal chemistry.