Methyl β-L-Fucopyranoside is primarily used in biochemical research as a specialized carbohydrate derivative. It serves as a valuable tool in the study of glycosylation processes and enzyme mechanisms, particularly those involving fucosidases and fucosyltransferases. This compound is often employed as a substrate or inhibitor in enzymatic assays to investigate the specificity and activity of these enzymes. Additionally, it plays a role in the synthesis of complex oligosaccharides and glycoconjugates, which are essential for understanding cell-cell interactions and signaling pathways. Its application extends to the development of glycobiology-based therapeutics, where it aids in the design of drugs targeting diseases related to abnormal glycosylation patterns.