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 that play a key role in cell signaling, immune response, and pathogen recognition. Additionally, it is utilized in the production of synthetic glycoconjugates for therapeutic applications, such as vaccine development and cancer treatment. Its role in modulating cell-surface interactions makes it a significant tool in understanding and manipulating biological pathways related to inflammation, infection, and cellular communication.