GDP-L-fucose disodium salt is widely used in biochemical research and pharmaceutical development. It serves as a crucial substrate in the study of fucosylation processes, which are essential for the synthesis of glycoproteins and glycolipids. This compound is particularly valuable in enzymatic assays to investigate the activity of fucosyltransferases, enzymes responsible for transferring fucose residues to various acceptor molecules. Additionally, it plays a significant role in the production of fucosylated oligosaccharides, which are important in understanding cell-cell interactions, immune responses, and pathogen recognition. Researchers also utilize GDP-L-fucose disodium salt in the development of therapeutic agents targeting diseases related to abnormal glycosylation, such as cancer and inflammatory disorders. Its application extends to the field of glycobiology, where it aids in the synthesis of complex carbohydrates for structural and functional studies.