Widely used as a mild reducing agent in organic synthesis, particularly effective for the selective reduction of ketones, aldehydes, and imines in the presence of more sensitive functional groups. It is especially valuable in complex molecule synthesis where chemoselectivity is crucial. Commonly employed in catalytic hydrogenation reactions and transformations involving transition metal intermediates. Its stability and solubility in organic solvents make it suitable for use in a variety of homogeneous reaction conditions. Also utilized in the preparation of other copper-based reagents and catalysts for conjugate additions and cross-coupling reactions.