China Best Price L-Tryptophan CAS 73-22-3 Food Grade 98% Powder L Tryptophan, Find details about China L-Tryptophan, L Tryptophan Powder from Best Price L-Tryptophan CAS 73-22-3 Food Grade 98% Powder L Tryptophan
Product Name | L Tryptophan |
Specification | 98% min |
Appearance | Off white powder powder |
CAS | 73-22-3 |
Molecular Formula | C11H12N2O2 |
Test Method | HPLC, UV |
Molecular Weight | 204.2252 |
Sample | Available |
Storage | two years |
Payment | T/T, Western union, Secure payment, L/C and T/T |
Product Name: L-Tryptophan | Quantity: 2000 KGS | |
Reference standard: USP36 | Package: 25 KGS/DRUM | |
Item | Specifications | Results |
Appearance | White crystals or crystalline powder | Conforms |
Assay ,% min | 98.5~101.5 | 99.5 |
Ph value | 5.5-7.0 | 5.5 |
Specific rotation | -29.4°~ -32.8° | -30.8° |
Loss on drying,% max | 0.3 | 0.13 |
Residue on ignition,% max | 0.10 | 0.05 |
Chloride (as Cl),% max | 0.05 | <0.05 |
Sulphate(as SO4),% max | 0.03 | <0.03 |
Iron (as Fe) , % max | 0.003 | <0.003 |
Heavy metals (as Pb),% max | 0.0015 | <0.0015 |
Conclusion: This product conforms to requirements of USP36 grade standard. |