5-oxoheptanoic acid is primarily used in organic synthesis as a building block for the preparation of more complex chemical compounds. It serves as an intermediate in the production of pharmaceuticals, particularly in the synthesis of active pharmaceutical ingredients (APIs) that require specific ketone and carboxylic acid functionalities. Additionally, it is utilized in the development of specialty chemicals, including fragrances and flavors, where its unique structure contributes to the desired olfactory or taste properties. In research, it is employed as a reagent in studies focusing on ketone chemistry and metabolic pathways. Its applications also extend to material science, where it can be incorporated into polymers or coatings to modify their properties.