Top Quality 98.5% feed grade L-Threonine 72-19-5 with reasonable price !

FOB Reference Price:Get Latest Price
US $2.5-7 / Kilogram | 5 Kilogram/Kilograms L-Threonine samples are available (Min. Order)
Supply Ability:
8000 Kilogram/Kilograms per Month L-Threonine manufacturer in China
qingdao port
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Quick Details
CAS No.:
Other Names:
Place of Origin:
Shandong, China (Mainland)
Feed Grade Antibiotic & Antibacterial Agents
Promote Healthy & Growth
Brand Name:
Model Number:
Product name:
Molecular Weight:
Water solubility:
90 g/L (20℃)
L-Threonine Density:
Melting point:
Boiling p oint:
345.803°C at 760 mmHg
Refractive index:
Flash point:
L-Threonine Vapour Pressur:
0mmHg at 25°C
L-Threonine Appearance:
White Crystal Powder
Packaging & Delivery
Packaging Details
25kg/drum,1kg/bag or according to customer request
Delivery Time
Within 2 days
Top Quality 98.5% feed grade L-Threonine 72-19-5
1.Competitive price
2.Fast Delivery Within 2 days
3.SGS , BV, GMP,ISO approve
4.Professional factory
Product Description

Specification of L-Threonine:

No.ItemStandardTest Result
1Assay (C5H11NO2S),%(on dry matter) min ≥98.599.15
2Loss on drying,%   max   ≤0.50.43
3Chloride (as Cl),%     max ≤0.2<0.2
4Heavy metals ,%(as Pb)   max0.002<0.002
5Arsenic(as As),%     max   ≤0.0002<0.0002


Function of L-Threonine


1.L-Threonine 72-19-5 is an essential amino acid that is added to the diet of pigs and poultry in order to exactly match the balanced amino acid requirement of the animals. In practice, L-Threonine 72-19-5 is the second limiting amino acid for pigs and the third for poultry. Even in the low protein diets with such balanced L-Threonine 72-19-5 content, L-Threonine 72-19-5 can optimize growth performance and decrease the excretion of nitrogen. It is cost-effective and environment friendly.
2.L-Threonine 72-19-5 is the highly purified products after fermentation. Technically, L-Threonine 72-19-5, the complementary of L-Lysine, is added based on the volume of L-Lysine in the feed. The ratio of Thr/Lys varies upon the species and growth stage.



Applications of L-Threonine:
a) Improvement of animal performance through better amino acid balance
b) Sparing consumption of the crude protein content
c) Improvement of carcass quality
d) Prevention of Threonine deficiency



1. Any inquiries will be replied within 12 hours.
2. Dedication to quality, supply & service.
3. Strictly on selecting raw materials.
4. OEM/ODM Available.
5. Reasonable & competitive price, fast lead time.
6. Sample is available for your evaluation & Formulation development.
7. Faster delivery:Sample order in stock and 3-7 days for bulk production.
8. We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder.
9. After-Sale Service:
(1) International Authorized Third-Party Test For The Products You Demand.
(2) 60 Days Warranty of quality of goods.

Packaging & Shipping


                                   Shipping Terms                                                   

              By Express

                     By Air

                  By Sea

      Suitable for under 50kg

      Fast: 3-7 days


      High cost

      Door to door service,

      easy to pick up the goods

      Suitable for more than 50kg

      Fast: 3-7 days

      High cost

      Port to port, 

      professional broker needed

    Suitable for more than 500kg

    Slow: 7-45 days

    Low cost

    Port to port, 

    professional broker needed




Our Services

1. Your inquiry related to our products or prices will be replied in 12hours.

2. Well-trained and experienced staffs to answer your enquires in fluent English.

3. All our products have high quality warranties.

4. Sample order can be delivered within 3 working days, small order 3-5working days, mass order 7-10working days.

5. Samples can be offered by free,customers just need to pay the freight.But the freight can be returned to our customer after he/she places formal order with us.


Company Information

Qingdao Sigma Chemical Co., Ltd. Import And Export Co., Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.

The aim of Sigma is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.

Sigma has become the "Top 500 Chinese manufacturing companies","Top 20 of global agrochemical sales".Sigma has 21 subsidiaries and holding companies.




 Q1: Are you a manufacturer?
Answer: Yes, we are factory founded on 2002.

Q2: How to contact with us?
Click the Alibaba "Contact Supplier" And then send us message the product you interest in, you will get reply within 24 hours.

Q3:Which kind of payment terms do you accept?
For small order,you can pay by T/T,Western Union or Paypal,nomal order by T/T to our company account

Q4:Can you give me a discount price?
Surely,It depend on your qty

Q5:How can i get a sample?
free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.

Q6: How to confirm the Product Quality before placing orders?
A: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.