Molecular Formula: C5H10N2O3
Molecular Weight: 146.14
CAS No： 56-85-9
| L-Glutamine | CP2020 | USP2023 |
| Assay | ≥99.0% | 98.5-101.5% |
| PH | 4.8 ～ 5.8 | / |
| Specific rotation[a]D20 | +6.3°-+7.3° | +6.3°-+7.3° |
| Specific rotation[a]D25 | / | / |
| Transmittance(T430) | ≥98.0% | / |
| Chloride(Cl) | ≤ 0.02% | ≤0.05% |
| Ammonium(NH4) | ≤ 0.10% | / |
| Sulfate(SO4) | ≤ 0.02% | ≤0.03% |
| Iron(Fe) | ≤ 10 PPM | ≤30PPM |
| Heavy metals(Pb) | ≤ 10 PPM | / |
| Arsenic | ≤1PPM | / |
| Lead | / | / |
| Other amino acids | individual impurities≤0.5% total impurities≤1.0% | ≤0.5% |
| Ninhydrin-positive substances | / | / |
| Loss on drying | ≤ 0.30% | ≤0.30% |
| Residue on ignition | ≤ 0.10% | ≤0.30% |
| Endotoxin | ＜ 25 EU/g | ＜ 25 EU/g |
| Total plate count | ≤ 500 CFU/g | ≤ 500 CFU/g |
| Moulds & Yeasts | ≤ 50 CFU/g | ≤ 50 CFU/g |
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