L-Tryptophan Powder

Appearance: White crystals or crystalline powder
Assay: 99%+
Grade: Food grade; Feed grade
COA: Available

High Quality Food Grade L-Tryptophan Powder L Tryptophan

L-Tryptophan is one of essential amino acids and the fourth limiting amino acid in animal diets, which means it could not be synthesized by the body, in addition, dietary supply through feed materials is usually insufficient. The deficiency of L-Tryptophan was generally characterized as decreased feed intake and efficiency, and slow growth rate. Considering L-Tryptophan playing a key role in growth performance and feed efficiency, it is recommended to add L-Tryptophan in diet to achieve the optimal amino acid balance and fulfill the digestible tryptophan requirement of animals, especially piglets, sows and poultry etc.

 Product Name:  L-Tryptophan
 Test:   HPLC
 Spec./Purity:   99%
 Appearance:   White crystals or crystalline powder
 CAS No.:  73-22-3
 Partical size:  100% pass 80 mesh
 Shelf Life:  2 Years

Product Function  

L-tryptophan is known for its ability to support healthy sleep, but when combined with a healthy diet and exercise, it can also promote calm mood, help memory and help maintain a healthy weight. †

*Sleep aid

*Fat burner

*Improve performance

*Promote calm mood and well-being

*Help memorize

*Combining a healthy diet and exercise can help maintain a healthy weight

Certificate of Analysis


Testing Item Standard Result
Appearance White or almost white, crystals or crystalline powder conforms
Assay 98.5%101.5% 99.6%
Specific Rotation -29.0° -32.8° -30.8°
Residue on Ignition ≤0.1% 0.03%
Loss on drying ≤0.3% 0.1%
PH 5.0~7.0 5.9
Chloride ≤0.05% <0.05%
Sulfate ≤0.03% <0.03%
Iron ≤0.002% <0.002%
Heavy Metal(Pb) ≤0.0015% conforms
Arsenic(As) ≤0.0001% conforms

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