China (Mainland)
Assessedsupplier
- Product Details
Keywords
- 99.5% L-Tryptophan
- High purity L-Tryptophan
- white powder L-Tryptophan
Quick Details
- ProName: Pharma Grade L-Tryptophan
- CasNo: 73-22-3
- Molecular Formula: C11H12N2O2
- Appearance: White crystals or crystalline powder
- Application: Pharmaceutical intermediates/ingred...
- DeliveryTime: Within 15days
- PackAge: 25kg/drum
- Port: China sea port
- ProductionCapacity: 1500 Metric Ton/Year
- Purity: 99.5%
- Storage: Cool and dry place
- Transportation: By sea or air, Express for small quant...
- LimitNum: 1 Kilogram
Superiority
Product name: L-Tryptophan
CAS No.：73-22-3
Molecule Formula：C11H12N2O2
Molecule Weight：204.23
Purity: 99.5%
Package: 25kg/drum
Description：White or primrose yellow crystalline powder
Manufacturer standard: AJI, USP. EP.
|
Items Testing |
Specifications |
Results |
|
Appearance |
White crystals or crystalline powder |
Conforms |
|
Specific rotation |
-30.5~-32.5° |
-31.2° |
|
State of solution (Transmittance) |
≥95.0% |
95.6% |
|
Chloride(Cl) |
≤0.020% |
＜0.020% |
|
Ammonium(NH4) |
≤0.020% |
＜0.020% |
|
Sulfate(SO4) |
≤0.020% |
＜0.020% |
|
Iron(Fe) |
≤20ppm |
＜20ppm |
|
Heavy metals(Pb) |
≤10ppm |
＜10ppm |
|
Arsenic(As2O3) |
≤1ppm |
＜1ppm |
|
Loss on drying |
≤0.20% |
0.11% |
|
Residue on ignition (Sulfated) |
≤0.10% |
0.02% |
|
Assay |
99.0%~100.5% |
99.5% |
|
PH |
5.4~6.4 |
5.8 |
|
Conclusion: The Product Conforms to USP.
|
||
Details
Siwei Development Group Ltd. is a reputed professional enterprise in China dedicated to the Amino Acids production and sales of fine chemical products.Over the years we have been making meticulous efforts in the production, research and development of new generation chemicals applied in a variety of industries like amino acids, food additive, pharma grade raw materials and so on. With many years industry experience, Siwei is one of the amino acids suppliers and exporters in China, serving bulk powder to industries like dietary supplement, nutritional supplement, functional food and drink. Guided by international market, Siwei offers superior products as well as sincere services.