Audited Supplier
L- tryptophan
Tryptophan
Acidity
Powder
72-19-5
off White Fine Powder
Nlt 95% Pass 80 Mesh
Room Temperature
Yes
20g Free Sample
Food, Supplement, Feed, Medicine..
Available
in Stock
Isoleucine, Leucine, Glutamine, Tryptophan
Comext
Drum
25kg/drum
China
292249
Product Description
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.
| Name | L-tryptophan |
| Appearance | White crystal or crystalline powder |
| CAS NO. | 73-22-3 |
| EINECS NO. | 200-795-6 |
| Molecular weight | 204.2252 |
| Melting point | 280-285ºC |
| Boiling point | 447.9°C at 760 mmHg |
| Density | 8.3E-09mmHg at 25°C |
| Flash point | 224.7°C |
| Items | Standard | Result |
| Appearance | White to off-white powder | Conforms |
| Assay | 98%min | 99.4% |
| Transmittance | ≥95.0% | 97.9% |
| Chloride(CL) | ≤0.02% | <0.02% |
| Sulphate(SO42-) | ≤0.02% | <0.02% |
| Ammonium(NH4+) | ≤0.02% | <0.02% |
| Iron(Fe) | ≤30ppm | <30ppm |
| Residue on ignition | ≤0.10% | 0.06% |
| Heavy metal(Pb) | ≤10ppm | <10ppm |
| Arsenic | ≤1ppm | <1ppm |
| Loss on drying | ≤0.20% | 0.09% |
| Conclusion | The product meets the specification standards. | |
