GDP-6-azido- Fucose (GDP-6-N3-Fuc)

GDP-6-azido-6-deoxy-L-Fucose is a modified sugar nucleotide derivative of L-fucose, where the hydroxyl group at the 6th carbon position of the sugar has been replaced by an azido group (-N₃), and it is linked to guanosine diphosphate (GDP). This derivative is commonly used in chemical biology and glycobiology for metabolic labeling of glycans and studying fucosylation processes in cells. The azido group makes it suitable for bioorthogonal click chemistry reactions, allowing researchers to tag or track fucosylated molecules with fluorescent or other labels.