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Physical and chemical properties of L-leucine

Melting point 286-288°C Sublimation point 145-148°C Specific optical rotation 15.4° (c=4, 6N HCl) Water solubility 22.4 g/L (20 C)

White glossy hexahedral crystal or white crystalline powder. Slightly bitter (DL-leucine is sweet). Sublimation at 145 ~ 148 ℃. Melting point 293~295℃ (decomposition). In the presence of hydrocarbons, the performance is stable in mineral acid aqueous solutions. Each g is dissolved in about 40 ml of water and about 100 ml of acetic acid. Slightly soluble in ethanol (0.07%), soluble in dilute hydrochloric acid and alkaline hydroxide and carbonate solutions. Insoluble in ether.

It is an essential amino acid, and the adult male needs 2.2g/d (151 copies). Necessary for normal growth of infants and maintenance of normal nitrogen balance in adults.

L-Leucine Product Use

Nutritional supplement; flavoring and flavoring agent.

Preparation of amino acid infusion and comprehensive amino acid preparations, hypoglycemic agents, plant growth promoters.

For biochemical research, biochemical reagents, amino acid drugs.

The role of L-leucine

It is used in medicine for the treatment and diagnosis of idiopathic hyperglycemia in children, and for the treatment of anemia, poisoning, muscular dystrophy, sequelae of poliomyelitis, neuritis and mental illness.

It is used for the diagnosis and treatment of idiopathic hyperglycemia in children, disorders of glucose metabolism, liver disease with reduced bile secretion, anemia, poisoning, muscular dystrophy, sequelae of poliomyelitis, neuritis and mental illness. Diabetes, cerebrovascular sclerosis and kidney disease patients with proteinuria and hematuria are hanged. Patients with gastric and duodenal ulcers should not take it.

Mainly as a nutritional supplement, it has the effect of lowering blood sugar and promoting growth.