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L-Threonine CAS 72-19-5

Molecular Formula: C4H9NO3

Formula Weight: 119.12

ZSpharmac: L-Threonine Supplier

Product Name: L-Threonine
CAS No: 72-19-5
Purity: 99%

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Basic Info

Product Name:L-Threonine
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Yellow Powder
EINECS No.:200-774-1
Provide:L-Threonine MSDS;
L-Threonine COA

What is L-Threonine?

Threonine is created by W. C . Rose, which was isolated and acknowledged from fibrin hydrolyzate in 1935, has in fact been verified to be the last required amino acid discovered. It is the 2nd or 3rd limiting amino acid of livestock as well as fowl, along with it has very essential physiological features in family pets. Such as advertising development, enhancing immune feature, and so forth; stabilizing dietary amino acids, making the proportion of amino acids far better to suitable healthy and balanced protein, therefore decreasing the demands of pets and fowl for protein web material in feed. Absence of threonine can bring about symptoms such as lowered animal feed consumption, stunted growth, lowered feed usage, and also subdued immune function. Recently, man-made things of lysine and methionine have really been extensively used in feed, and threonine has progressively become a limiting facet affecting animal production performance. More study on threonine will assist efficiently introduction livestock as well as chicken production.
Threonine is an amino acid that can not be manufactured by animals, but is rather required. It can be utilized to specifically maintain the amino acid makeup of feed, fulfill the needs of animal development and likewise maintenance, increase weight gain along with lean meat rate, and additionally lower feed-to-meat ratio; it can improve amino acid digestibility The dietary worth of minimized feed resources can boost the manufacturing effectiveness of low-energy feed; it can reduce the unrefined healthy and balanced protein degree of feed, improve the nitrogen usage rate of feed, and also reduce feed expense; it can be utilized for feeding in addition to breeding of pigs, hens, ducks and excellent aquatic products. L-threonine is a feed additive developed by immersed fermentation as well as likewise refining of cornstarch and also other raw materials using the concept of bioengineering. It can readjust the amino acid equilibrium in the feed, market development, enhance meat premium quality, improve the nutritional worth of feed products with lowered amino acid digestibility, and produce low-protein feed, which helps to conserve healthy protein resources, minimize the expense of feed products, and lower animals manure as well as urine. Nitrogen material, ammonia focus as well as likewise release rate in animals and likewise poultry houses. It is commonly used to consist of pig feed, breeding pig feed, broiler chicken feed, prawn feed as well as additionally eel feed.

L-Threonine Property

Melting point 

256 °C (dec.) (lit.)


-28.4 º (c=6, H2O)

Boiling point 

222.38°C (rough estimate)


1.3126 (rough estimate)

refractive index 

-28 ° (C=6, H2O)

storage temp. 



H2O: 50 mg/mL




2.09(at 25℃)




5-6 (100g/l, H2O, 20℃)


ADM L-Threonine is a high quality product specifically designed for the feed industry. Produced from advanced technology, ADM L-Threonine is composed of 100% isomerically pure L-Threonine, which translates into 100% bioavailability for swine, poultry, and other animals.mild savory

Odor Type


optical activity

[α]20/D 28.5±0.5°, c = 5% in H2O

Water Solubility 

90 g/L (20 ºC)


L-Threonine Uses

Catabolism of L-Threonine

In the assimilation of L-Threonine in the body, it is the just one that does not go through deamination and also transamination, yet is directly exchanged other substances by threonine dehydratase, threonine dehydrogenase as well as threonine aldolase. Amino acids such as L-Threonine can be exchanged butyryl-CoA, succinyl-CoA, serine, glycine, and so on. Furthermore, excessive threonine can enhance the activity of lysine-α-ketogluconate reductase. Including an ideal amount of threonine to the diet plan can remove the decline in body weight brought on by extreme lysine, and also healthy protein in liver and also muscle mass cells/ deoxyribonucleic acid (DNA), ribonucleic acid (RNA)/ DNA proportion lowered. Enhancement of threonine also minimized growth inhibition brought on by excess tryptophan or methionine. According to reports, hens absorb most of the threonine in the duodenum, and also the threonine soaked up by the plant and glandular tummy is swiftly converted into liver healthy protein as well as deposited in the body. Nevertheless, the comprehensive system of exactly how threonine participates in healthy protein synthesis is still unclear.

L-Threonine Production Method

About Products:
If you need L-Threonine as a cosmetic raw material, please contact our service staff directly, we will provide you with high-quality products at the best price.
As an experienced L-Threonine manufacturer and supplier, ZSpharmac will provide L-Threonine raw materials to customers all over the world for a long time.
Over the years, the company has been adhering to the spirit of “integrity management, strict quality control, customer first”, and has won unanimous praise from domestic and foreign customers.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

Get L-Threonine Quotation