| Customization: | Available |
|---|---|
| CAS No.: | 73-22-3 |
| Formula: | C11h12n2o2 |
|
Still deciding? Get samples of US$ 10/Piece
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
| Product name | L-Tryptophan | ||
| Test item(s) | Limit | Test result(s) | |
| Appearance | White crystals or crystalline powder | Conforms | |
| Assay,% | 98.5~101.5 | 99.5 | |
| pH | 5.5~7.0 | 5.85 | |
| Specific rotation | -29.4°~-32.8° | -30.8° | |
| Loss on drying,% | ≤0.30 | 0.14 | |
| Residue on ignition,% | ≤0.10 | 0.08 | |
| Chloride(as Cl),% | ≤0.05 | <0.05 | |
| Sulphate(as SO4),% | ≤0.03 | <0.03 | |
| Iron(as Fe),% | ≤0.003 | <0.003 | |
| Heavy metals(as Pb),% | ≤0.0015 | <0.0015 | |
| Conclusion | Complies with standards. | ||
Baoding Faithful Industry Co., Ltd. was established in 2005 and is located in the National High Tech Industrial Science and Technology Park of Baoding City, Hebei Province. It specializes in researching, producing, and selling raw materials for health products. Its main products include sodium hyaluronate, collagen, trypsin, gastric enzymes, and plant extracts. Our products are exported to over 20 countries, including the Americas, Europe, and Asia. We have extensive markets and research centers in the United States, Germany, Japan, and other places and a vast database of cutting-edge skin biology that accurately captures global trends. The laboratory has senior engineers and high-end experimental equipment, pursuing ultimate scientificity and safety and meeting consumers' high requirements for quality of life. We have established a comprehensive service system from quality control and sales to after-sales service and have passed the ISO9001 quality management system. We will provide new and old cosmetics customers with higher quality products, higher quality, more complete, and more thoughtful services.
){kind=link}