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White acicular crystal or crystalline powder, odorless, bitter taste, MP 334 ℃ (decomposition), insoluble in water (0.04%, 25 ℃), insoluble in absolute ethanol, ether and acetone, soluble in dilute acid or alkali. The isoelectric point is 5.66.
Amino acid drugs. The raw materials of amino acid infusion and amino acid compound preparation are used as nutritional supplements. For the treatment of poliomyelitis and tuberculous encephalitis / hyperthyroidism and other diseases.
