Methyl 7-hydroxyheptanoate is primarily used in the synthesis of fine chemicals and intermediates for pharmaceuticals. It serves as a key building block in the production of various bioactive compounds, particularly those with applications in medicinal chemistry. Its hydroxyl and ester functional groups make it a versatile precursor for creating complex molecules, such as those used in drug development for treating metabolic disorders or as anti-inflammatory agents. Additionally, it is employed in the preparation of polymers and specialty materials, where its structure contributes to the desired properties of the final product. Its role in organic synthesis highlights its importance in advancing research and industrial applications.