L-Tryptophan
L-Tryptophan
CAS NO：73-22-3
| Chemical Name | L-Tryptophan |
| Molecular Structure |  |
| Molecular Formula | C11H12N2O2 |
| Molecular Weight | 204.23 |
| Characteristics | White to yellowish white crystalline powder |
| Packing | 25㎏/drum，25㎏/carton |
| Quality Standard | AJI92/USP28/EP5/FCCIV |
| Specification | |
| Specific rotation[a]D20° | -30.5°~-32.5° |
| State of solution | Clear |
| (Tranamittance) | ≥ 95.0% |
| Chloride(CI) | ≤ 0.02% |
| Ammonium(NH4) | ≤ 0.02% |
| Sulfate(SO4) | ≤ 0.020% |
| Iron(Fe) | ≤ 10PPm |
| Heavy metals(Pb) | ≤ 10PPm |
| Arsenic(As2O3) | ≤ 1PPm |
| Loss on drying | ≤ 0.20% |
| Residue on ignition (Sulfated) | ≤ 0.10% |
| Assay | 99.0～100.5% |
| PH | 5.4～6.4 |
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L-Isoleucine
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L-Arginine AJI92
