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　　Legal number: CAS RN) : 56-85-9 EINECS no. : 200-292-1

　　Molecular formula: C₅H₁₀N₂O₃

　　Molecular weight: 146.14

　　Physical and chemical properties: white needle crystal. The melting point of 184-184 ℃ (decomposition). Soluble in methanol, ethanol, ether, benzene, acetone, chloroform and ethyl acetate. Stable in neutral solution, the easy decomposition into glutamic acid, acid, alkali goods hot water cargo lactonization as pyrrole hydroxyl acid. Odourless, have a sweet fragrance.

　　Purpose: the goods into the sugar in the body, as a precursor for synthesis of mucin, can promote ulcer healing, the main role in the digestive tract ulcer medicine. In addition, it can be used as a brain function to improve agent and used in the treatment of alcoholism.

　　Standard: FCCIV USP24