CAS No.:63-91-2
L-Alanine
Molecular Formula: C9H11NO2
Molecular Weight: 165.19
CAS Number: 63-91-2
Specifications
| L-phenylalanine | CP2020 | EP11 | USP2023 | AJI92 | FCC11 |
| content | ≥98.5% | 98.5-101.0% | 98.5-101.5% | 99.0-100.5% | 98.5-101.5% |
| acidity | 5.4-6.0 | / | 5.4-6.0 | 5.4-6.0 | 5.4-6.0 |
| Specific rotation [a]D20 | -33.0°–35.0° | -33.0°–35.5° | / | -33.5°–35.0° | -33.2°–35.2° |
| Specific rotation [a]D25 | / | / | -32.7°–34.7° | / | -32.7°–34.7° |
| Light | ≥98.0% | / | / | ≥98.0% | / |
| Solution appearance | / | clear & colorless ≤BY6 | / | / | / |
| chloride | ≤0.02% | ≤0.02% | ≤0.05% | ≤0.02% | / |
| Ammonium salt | ≤0.02% | ≤0.02% | / | ≤0.02% | / |
| sulfate | ≤0.02% | ≤0.03% | ≤0.03% | ≤0.02% | / |
| Iron salts | ≤10PPM | ≤10PPM | ≤30PPM | ≤10PPM | / |
| heavy metal | ≤10PPM | / | / | ≤10PPM | ≤5PPM |
| Arsenic salts | ≤1PPM | / | ≤1PPM | / | |
| Other amino acids | ≤0.50% | / | Individual impurities≤0.5% Total impurities≤2.0% | conform | / |
| Ninhydrin active substance | / | Each impurity≤ 0.2 % Total impurities≤ 0.5 % | / | / | / |
| Loss on drying | ≤0.20% | ≤0.50% | ≤0.30% | ≤0.20% | ≤0.20% |
| Residue of ignition | ≤0.10% | ≤0.10% | ≤0.40% | ≤0.10% | ≤0.10% |
| Total bacteria | ≤ 500 CFU/g | ≤ 500 CFU/g | ≤ 500 CFU/g | ≤ 500 CFU/g | ≤ 500 CFU/g |
| Mold & yeast | ≤ 50 CFU/g | ≤ 50 CFU/g | ≤ 50 CFU/g | ≤ 50 CFU/g | ≤ 50 CFU/g |
| pathogenic bacteria | Cronobacter / Enterobacteriaceae / Salmonella / Bacillus cereus / Clostridium (can be tested upon request) | ||||