2-Methylglutaric acid is utilized in the synthesis of fine chemicals and pharmaceuticals, serving as a building block for more complex molecules. It is often employed in the production of polymers and resins, where it acts as a monomer or intermediate to enhance material properties. In the pharmaceutical industry, it is used in the development of active pharmaceutical ingredients (APIs) and as a precursor in drug synthesis. Additionally, it finds application in organic synthesis for creating specialty chemicals and in research laboratories for studying metabolic pathways and enzyme mechanisms. Its role in biochemical research includes mimicking natural metabolites to understand biological processes better.