N-acetyl-d-glucosamine made by H&Z® factory is the basic unit of many important polysaccharides in biological cells, especially the exoskeleton of crustaceans has the highest content. It is an important prerequisite for the synthesis of bifidum factors and has many important physiological functions in vivo.It is a clinical treatment of rheumatoid arthritis and rheumatoid arthritis drugs. It can also be used as food antioxidants and infant food additives, diabetes patients sweetener.White powder with slight sweet. Soluble in water,faintly soluble in ethanol.