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  • Mr.Chang Liu
    Tel: +86-0311-66562153

  • Ms.Daisy
    Tel: 19930503252

  • Mobile:+8615203118427
  • Tel:+86-0311-66562153
  • Fax:+86-0311-66562153
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Home > Products >  High Quality feed additives 72-19-5 l-threonine in bulk supply

High Quality feed additives 72-19-5 l-threonine in bulk supply CAS NO.72-19-5

  • Min.Order: 1 Kilogram
  • Payment Terms: L/C,T/T,Western Union,MoneyGram
  • Product Details


  • 72-19-5
  • Chlorotetracycline
  • L-Threonine

Quick Details

  • ProName: High Quality feed additives 72-19-5 l-...
  • CasNo: 72-19-5
  • Molecular Formula: C4H9NO3
  • Appearance: white powder
  • Application: Food additives
  • DeliveryTime: within 7-10 days
  • PackAge: according to your request
  • Port: any port in China
  • ProductionCapacity: 1000 Metric Ton/Day
  • Purity: 99% min
  • Storage: keep in dry and cool
  • Transportation: Air, express, sea
  • LimitNum: 1 Kilogram



our big news

we will participate in cphi china 2018 shanghai on 20th-22th june


package details:

1kg/aluminum foil bag

1kg/ aluminium tin


25kg/ aluminum drum

delivery time: usually within 2 working days after confirming the payment.

shipping details:dhl; tnt; ups or ems



company information


crovell biotech (hebei) co., ltd is located in shijiazhuang, hebei province. crovell is specialized in pharmaceutical intermediates, veterinary intermediates and dyes intermediates. crovell also supply various industrial chemicals for customers. 


after ten years development ,crovell has become a diversified development company, not only involves in chemicals, but also real estate ,clothes ,agricultural products and so on.

so far, crovell has business in more than 50 countries, most big customers come from europe and america, because among the suppliers in china, crovell can always make the product quality best, some of the products from crovell can reach the purity of 99.9+. this is the important reason for customers who choosing crovell.

in the future, crovell must become a more important trade bridge for china and foreign countries especially in pharmaceutical industries.




Our Service:
1. Fast Delivery: We can delivery within 24 hours upon receipt of your payment.
2. Quality can be promised. Hot sell to Worldwide.
3. Payment Terms: T/T,WU,MoneyGram,Paypal Available.
4. Free Sample available at any time.
5. Tracking your order at any time. Inform your order's further new situation at any time.
6. Package: Professional packing with professional materials.

Our advantage:
1. We have experience in exporting steroids, as you know, EU places much emphasis on them, and you must find a experienced partner who will assure you; 
2. Quality: Our company is a professional leading factory in China in pharmaceutical area, We had stable customers and exported to Germany, Spain, UK, USA, Australia, Middle East, and any other countries. We can provide good references about our company. As for the quality of the products, we 're sure they can satisfy you well enough; 
3. Package: Professional packing with professional materials 
4. Delivery: We have products in stock, and we will deliver them soon when your PO arrived. Meanwhile we will give you the tracking number in order to make you know the exact location of the products. We will keep track of the product until they arrive you; We choose the best courier service for you, and with the delivery around 5-7 working.



High Quality l-threonine 72-19-5


2.Delivery:within 2 days
3.SGS , BV, BRC , HALAL ,KOSHER approve
4.professional factory

Product Description



l-threonine Specification:





Product Name


Other name

Amino Acid








Inside: vacauumed aseptic PE bags, 25kg per bag.

Outside: Kraft paper bag

Packages size can also be offered according to customer requirement


White or light-brown Crystal or powder



High Quality feed additives 72-19-5 l-threonine in bulk supply





Loss on drying

1.0% max

Residues on ignition

0.5% Max

Heavy metals

20PPM Max


2PPM Max



Stability and storage

1.Be set to cool.dry and ventilated place .away from Fire source.


2. Sealed, Prevent from rain. sunlight and  strong acids or alkali.


3.Lightly transport  and protect from package damage



L-Threonine 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 is the second limiting amino acid for pigs and the third for poultry. 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.



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