Threonine 98.5%

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CAS No.:
Other Names:
Place of Origin:
Shandong, China
Feed Grade Amino Acids, Feed Grade Enzymes
Feed Preservatives, Promote Healthy & Growth, Promote Nutrition
Brand Name:
Model Number:
Supply Ability
Supply Ability:
1500 Ton/Tons per Month
Packaging & Delivery
Packaging Details
25kg in a compound bag
Tianjin or Qingdao
Lead Time :
within 7 days after receive the payment

1. L-Threonine Structure and Properties


Name: L-Threonine(β-hydroxyl-αaminobutyric acid)


CAS NO: 72-19-5


Molecular weight: 119.12


Properties:   White orthorhombic or crystalline powder. Odorless, Slightly-sweet taste. It melts and decomposes at 253.It decomposes with dilute alkali at high decmposes gradually with acid.Soluble in water Insoluble in ethanol,ether or chloroform.Isoelectric point is PH 6.16.


2. L-Threonine 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.


As amino acid for forge,threonine is widely added in the forage for newborn pig,covering pig,poultry,shrimp,eel and so.It can:


--Keep the balance of amino acids in the forage and stimulate the growth of the animals;


--Improve the meat quality;


--Increase the nutritive value of forage raw materials which have low amino acid digestibility;


--Apply to the production low-protein forage;


--Cut down the cost of raw materials for forage;


--Decrease the nitrogen content in the excrement and urine of animals so that the release of ammonia is slowed and the ammonia concentration is kept low in animal shed.


3. L-Threonine Specifications


AppearanceWhite crystals or crystalline powder
Loss on Drying≤ 0.2%
Residue on Ignition≤ 0.1%
Specific Rotation-26.7° ~ -29.0°
PH5.2 ~ 6.2
Heavy Metals≤ 10ppm
Iron≤ 10ppm
Arsenic(as NH4)≤ 200ppm
Sulphate≤ 200ppm
Arsenic(As2o3)≤ 1ppm
Chloride≤ 200ppm
Other Amino AcidMeets the requirements
Assay99.0 ~101.0%



4. L-Threonine Packing


1) 25kg in a compound bag;


2)  Upon customer's request.(such as 250kgs,500kgs, 680kgs, 750kgs, 908kgs or 1000kgs bags).


 3). One 20'FCL can load 18 tons L-Threonine(Feed Grade) with pallets; One 20'FCL can load 20 tons L-Threonine(Feed Grade) without pallets


5. Storage: 


 Store in the original packaging in dry area protected from direct sunlight, at the temperature not higher than 25° C. Shelf life is 2 years from date of manufacture



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