Name: L-Threonine (b-hydroxyl-a-aminobutyric acid)
CAS NO: 72-19-5
Structural Formula:
 
Molecular weight: 119.12
Properties: White orthorhombic or crystalline powder. Odorless, Slightly-sweet taste. It melts and decomposes at 253 degree C It decomposes with dilute alkali at high temperature.it decmposes gradually with acid.Soluble in water Insoluble in ethanol,ether or chloroform.Isoelectric point is PH 6.16.

2. Usage

Threonine is an important kind of analeptic which fortifies cereal,pastry and dairy products.Like tryptophan,it rejuvenates human bodies and promotes the growth of infants.When applied in pharmaceutical field,threonine can moisten human skins due to the hydroxy in its structure.Combined with oligose,it protects human cell membranes,and accelerates the synthesis of phosphatide and the oxidation of fatty acid.With a medicinal effect of preventing fatty liver,threonine preparation works as a component of compound amino acid injection,Meanwhile,threonine can be used for the production of monobactams,one of high-effect and low-allergy antibiotics.