Molecular Formula: C6H14N4O2·HC1
Molecular Weight: 210.66
CAS No： 1119-34-2
| L-Arginine Hcl | CP2020 | EP11 | USP2023 | AJI92 |
| Assay | ≥98.5% | 98.5-101.0% | 98.5-101.5% | 99.0-101.0% |
| PH | / | / | / | 4.7-6.2 |
| Specific rotation[a]D20 | +21.5°-+23.5° | +21.0°-+23.5° | +21.4°-+23.6° | +22.1°-+22.9° |
| Specific rotation[a]D25 | / | / | / | / |
| Transmittance(T430) | ≥98.0% | / | / | ≥98.0% |
| Appearance of solution | / | clear & colorless ≤BY6 | / | / |
| Chloride(Cl) | 16.5-17.1% | / | 16.5-17.1% | 16.58-17.00% |
| Ammonium(NH4) | ≤0.02% | ≤0.02% | / | ≤0.02% |
| Sulfate(SO4) | ≤0.02% | ≤0.03% | ≤0.03% | ≤0.02% |
| Iron(Fe) | ≤10PPM | ≤10PPM | / | ≤10PPM |
| Heavy metals(Pb) | ≤10PPM | / | / | ≤10PPM |
| Arsenic | ≤1PPM | / | / | ≤1PPM |
| Other amino acids | ≤0.20% | / | Individual impurities≤0.5% Total impurities≤2.0% | conform |
| Ninhydrin-positive substances | / | Each impurity≤0.2% Total impurity≤0.5% | / | / |
| protein | no precipitate | / | / | / |
| Loss on drying | ≤0.20% | ≤0.50% | ≤0.20% | ≤0.20% |
| Residue on ignition | ≤0.10% | ≤0.10% | ≤0.10% | ≤0.10% |
| Endotoxin | conform | conform | conform | / |
| Total plate count | ≤ 1000 CFU/g | ≤ 1000 CFU/g | ≤ 1000 CFU/g | ≤ 1000 CFU/g |
| Moulds & Yeasts | ≤ 100 CFU/g | ≤ 100 CFU/g | ≤ 100 CFU/g | ≤ 100 CFU/g |
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