Biotin Hydrazide is a biotinylation reagent used to biotinylate glycoproteins and glycolipids. It can be used for labeling of proteins, antigens, antibodies, nucleic acids (DNA, RNA), etc. In affinity cytochemistry, hydrazide functional groups allow biotinylation of glycolipids and glycoproteins through the oligosaccharide moiety Chemicalbook; biotinylation of DNA, immobilization of DNA; for maleic imide biotinylation reaction.