CAS number： 56-85-9
Molecular formula： C5H10N2O3
molecular weight： 146.146
Chemical structure：
| Product name | L-Glutamine | |
| Shelf Life | 3 Years | |
| Tests | Limits | Test results |
| Description | White crystals or crystalline powder | Conforms |
| Idenlification（IR） | concordant with the reference spectrum | Conforms |
| Assay | 98.5～101.5% | 99.1% |
| Specific rotation[a]D25 | +6.3°～+7.3° | +6.4° |
| Chloride(Cl) | ≤0.05% | ＜0.05% |
| Sulfate(SO4) | ≤0.03% | ＜0.03% |
| Iron(Fe) | ≤0.003% | ＜0.003% |
| Heavy metals(Pb) | ≤0.0015% | ＜0.0015% |
| Loss on drying | ≤0.30% | 0.1% |
| Residue on ignition | ≤0.30% | 0.03% |
| Organic volatile impurities | meets the requirements | Conforms |
| Conclusion: Passed test according to the Standard of USP33. | ||
