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Professional L-Tryptophane Feed Grade Suppliers in China
  • L-Tryptophane Manufacturer China
  • L-Tryptophane 25kg bag
  • L-Tryptophane Manufacturer China
  • L-Tryptophane 25kg bag

L-Tryptophane Feed Grade

CAS  No.:73-22-3

Molecular Weight:204.23

Molecular Formula:C11H12N2O2

Purity: 98.0%Min

Annual Capacity: 100,000+MT

What is L-Tryptophane

L-Tryptophane Property

L-Tryptophan is a neutral aromatic amino acid containing indolyl, which is white or yellowish crystal or powder. It has a solubility of 1.14g (25°C) in water, soluble in dilute acid or dilute base, stable in lye, and decomposed in strong acid. Slightly soluble in ethanol, insoluble in chloroform, ether.

L-Tryptophane Chemical Structure:

L-tryptophan chemical structure

Melting Point: 289-290 °C

Boiling Point:2.46(at 25℃)

Acidity Coefficient (pKa):2.46(at 25℃)

Optical activity: [α]20/D 31.5±1°, c = 1% in H2O

L-Tryptophane Feed Grade Function

  • Protein Synthesis: L-Tryptophan is an essential building block for protein synthesis in animals. It helps in the formation of new tissues, muscles, and enzymes, which are essential for growth and overall health.
  • Growth Promotion: By providing animals with adequate levels of L-Tryptophan in their diet, it can promote faster growth and development. This is especially important in the poultry and swine industries where rapid growth is desired.
  • Immune System Support: L-Tryptophan is a precursor to niacin (vitamin B3), which is important for maintaining a healthy immune system. Adequate levels of L-Tryptophan can help boost the immune response of animals, making them more resistant to diseases.
  • Stress Reduction: L-Tryptophan is a precursor to serotonin, a neurotransmitter that plays a role in regulating mood and reducing stress in animals. This can be particularly beneficial in reducing stress-related issues and aggressive behavior in animals.
  • Feed Efficiency: L-Tryptophan supplementation can improve the efficiency of feed conversion in animals. This means that animals can convert feed into body weight more effectively, resulting in lower feed costs and better profitability for farmers.
  • Behavior and Well-being: L-Tryptophan can have a calming effect on animals, which can lead to improved behavior and overall well-being. It may help reduce aggressive tendencies and improve the handling of animals, making them easier to manage.
  • Nutrient Balance: L-Tryptophan is important for maintaining the overall amino acid balance in animal diets. It ensures that animals receive the right proportion of essential amino acids, contributing to the overall nutritional quality of the feed.
  • Egg and Meat Quality: In poultry, L-Tryptophan supplementation can improve the quality of eggs and meat, making them more appealing to consumers.
L-Tryptophane Function
Quality Standard GB/T25735-2010
Appearance White to Yellowish Crystal or Crystal Powder
Odor Odorless or slight odor
Content (Dry basis): ≥98.0%
Specific Rotation°: -29.0°~ -32.8°
Loss on drying, %: ≤0.5
Residue on ignition,%: ≤0.5
PH(1%aqueous solution): 5.0-7.0
As,mg/kg: ≤2
Pb,mg/kg: ≤5
Cd,mg/kg: ≤2
Hg,mg/kg: ≤0.1
Salmonella(25g specimen),cfu/25g Absent




10kg=One bag


L-Tryptophane Packed on pallets

Releted Products

What is the lead time for 20GP loading ?

Generally, the lead time for 20GP loading is 3-7 days. At the same time,  our plant is near to qingdao and tianjin port , can ship the goods to seaport within two days .

Can you provide with COA and MSDS of L-threonine Feed Grade ?

Sure . Contact me , they will be sent by email to you soon !

Can you make our labels on your packing ?

Certainly. Just send your labels , I will make as your requirement .

Can you transport the goods to our required seaport ?

Yes, our nearest seaport is qingdao or tianjin , and other seaports are also workable for our shipping .

Which countries are you exporting L-threonine Feed Grade to ?

Currently we are exporting this material to Brazil, Netherlands, Russian Federation, Belgium, Spain, Viet Nam, United States, India, Indonesia, Thailand, Philippines, South Korea and ect.

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