l-tryptophan cas 73-22-3
Chemical Name: L-tryptophan
CAS No.: 73-22-3
Molecular Formula: C11H12N2O2
L-tryptophanStructure:
Molecular weight:204.23
Appearance:White crystals or crystalline powder
L-tryptophan Typical Properties
| Item | Standard |
| Appearance | White crystals or crystalline powder |
| Identification | Meets the requirements |
| Specific rotation[α]D25 | -29.4°～-32.8° |
| pH | 5.5～7.0 |
| Loss on drying | ≤0.3% |
| Residue on ignition | ≤0.1% |
| Chloride(Cl) | ≤0.05% |
| Sulfate（SO4） | ≤0.03% |
| Iron(Fe) | ≤0.003% |
| Heavy metals(Pb) | ≤0.0015% |
| Assay | 98.5%～101.5% |
L-tryptophanUsage
The product can be used in nutritional fortified foods. Also used as a third feed amino acid.Also used in pregnant women nutritional supplements and milk special milk powder.
L-tryptophanPackaging and Shipping
Packing: 25kg/drum
L-tryptophanStorage
It should be placed in cool and dry.
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