N-Acetyl-D-glucosamine 6-sulfate (sodium) is a biochemical reagent utilized in glycoscience research. This field studies the structure, synthesis, biology, and evolution of carbohydrates, encompassing carbohydrate chemistry, enzyme activities in glycan formation and degradation, protein-glycan interactions, and the roles of glycans in biological systems. These studies are closely linked with fundamental research, biomedical applications, and biotechnology.