Used as a highly efficient catalyst in organic synthesis, particularly in cyclopropanation and C–H insertion/functionalization reactions involving metal carbenes. It facilitates the formation of complex organic molecules, making it valuable in pharmaceutical and fine chemical industries. The dichloromethane adduct form enhances solubility and stability, improving catalytic performance in homogeneous reaction systems. Commonly applied in the synthesis of bioactive compounds, such as through diazo compound decomposition.