Used as an intermediate in organic synthesis, particularly in the preparation of barbiturates and other pharmaceuticals. Serves as a building block in the synthesis of fine chemicals, including flavors and fragrances, due to its ability to undergo condensation and esterification reactions. Employed in the production of polymers and plasticizers, enhancing flexibility and workability of materials. Also utilized in research laboratories for the preparation of carboxylic acids and substituted malonate derivatives through alkylation and hydrolysis processes.