Used primarily in organic synthesis, it serves as a key reagent for introducing the malonyl group into molecules. It is widely employed in the production of pharmaceuticals, particularly in the synthesis of active pharmaceutical ingredients (APIs) and intermediates. Additionally, it plays a role in the manufacture of agrochemicals, such as herbicides and insecticides. In polymer chemistry, it is utilized to create specialized resins and coatings. Its reactivity with amines and alcohols makes it valuable for producing esters and amides, which are essential in various industrial applications.