Gal1-β-3GlcNAc-β-PNP (Galactosyl-N-acetylglucosaminyl-β-p-nitrophenyl) is a biochemical reagent used in glycobiology studies. Research in glycobiology focuses on the structure, synthesis, biology, and evolution of sugars, encompassing carbohydrate chemistry, glycan formation and degradation enzymology, protein-glycan recognition, and the role of glycans in biological systems. This field is closely linked to fundamental research, biomedicine, and biotechnology.