4-Fluoro-2-methylpyridine is primarily used as a building block in the synthesis of various pharmaceuticals and agrochemicals. Its structure allows it to act as an intermediate in the production of compounds with potential biological activity. In medicinal chemistry, it is often employed to introduce fluorine atoms into drug molecules, which can enhance their metabolic stability and bioavailability. Additionally, it serves as a key precursor in the development of herbicides and pesticides, where its pyridine core contributes to the efficacy of the final product. Its versatility also extends to material science, where it is used in the creation of specialty chemicals and advanced materials.