4-Oxoheptanoic acid is primarily used in organic synthesis as a versatile intermediate for producing various chemical compounds. Its ketone and carboxylic acid functional groups make it valuable in the preparation of pharmaceuticals, particularly in the synthesis of active pharmaceutical ingredients (APIs). It is also employed in the development of fragrances and flavors, contributing to the creation of complex aromatic compounds. Additionally, it serves as a building block in polymer chemistry, aiding in the production of specialized resins and coatings. Its role in biochemical research includes being a precursor for studying metabolic pathways and enzyme mechanisms.