CAS No.:56-85-9
L-Glutamine
Molecular Formula： C5H10N2O3
Molecular Weight: 146.14
CAS Number: 56-85-9
Specifications
| L-glutamine | CP2020 | USP2023 | USP32 | FCC11 | JSFA |
| content | ≥99.0% | 98.5-101.5% | 98.5-101.5% | 98.5-101.5% | 98.0%～102.0% |
| acidity | 4.8 ～ 5.8 | / | / | / | 4.5～6.0 |
| Specific rotation [a]D20 | +6.3°-+7.3° | +6.3°-+7.3° | +6.3°-+7.3° | +6.3°-+7.3° | +6.3°-+7.3° |
| Specific rotation [a]D25 | / | / | / | / | / |
| Light | ≥98.0% | / | / | / | Colorless and clear |
| chloride | ≤ 0.02% | ≤0.05% | ≤0.05% | / | ≤ 0.1% |
| Ammonium salt | ≤ 0.10% | / | / | / | / |
| sulfate | ≤ 0.02% | ≤0.03% | ≤0.03% | / | / |
| Iron salts | ≤ 10 PPM | ≤30PPM | ≤30PPM | / | / |
| heavy metal | ≤ 10 PPM | / | ≤15PPM | / | ≤2PPM |
| Arsenic salts | ≤1PPM | / | / | / | ≤3PPM |
| lead | / | / | / | ≤5PPM | / |
| Other amino acids | Individual impurities≤0.5% Total impurities≤1.0% | ≤0.5% | ≤0.5% | / | / |
| Ninhydrin active substance | / | / | / | / | / |
| Insoluble impurities | / | / | / | ≤50PPM | / |
| Loss on drying | ≤ 0.30% | ≤0.30% | ≤0.30% | ≤0.30% | ≤0.30% |
| Residue of ignition | ≤ 0.10% | ≤0.30% | ≤0.30% | ≤0.10% | ≤0.10% |
| endotoxin | ＜ 25 EU/g | ＜ 25 EU/g | / | / | / |
| Total bacteria | ≤ 1000 CFU/g | ≤ 1000 CFU/g | ≤ 1000 CFU/g | ≤ 1000 CFU/g | ≤ 1000 CFU/g |
| Mold & yeast | ≤ 100 CFU/g | ≤ 100 CFU/g | ≤ 100 CFU/g | ≤ 100 CFU/g | ≤ 100 CFU/g |