Molecular Formula: C6H14N4O2
Molecular Weight: 174.20
CAS No: 74-79-3
L-Arginine | CP2020 | EP11 | USP2023 | AJI92 |
Assay | ≥99.0% | 98.5-101.0% | 98.5-101.5% | 99.0-101.0% |
PH | 10.5-12.0 | / | / | 10.5-12.0 |
Specific rotation[a]D20 | +26.9°-+27.9° | +25.5°-+28.5° | / | +26.9°-+27.9° |
Specific rotation[a]D25 | / | / | +26.3°-+27.7° | / |
Transmittance(T430) | ≥98.0% | / | / | ≥98.0% |
Appearance of solution | / | clear & colorless ≤BY6 | / | / |
Chloride(Cl) | ≤0.02% | ≤0.02% | ≤0.05% | ≤0.02% |
Ammonium(NH4) | ≤0.02% | ≤0.02% | / | ≤0.02% |
Sulfate(SO4) | ≤0.02% | ≤0.03% | ≤0.03% | ≤0.02% |
Iron(Fe) | ≤10PPM | ≤10PPM | ≤30PPM | ≤10PPM |
Heavy metals(Pb) | ≤10PPM | / | / | ≤10PPM |
Arsenic | ≤1PPM | / | / | ≤1PPM |
Other amino acids | ≤0.4% | / | Individual impurities≤0.5% Total impurities≤2.0% | conform |
Ninhydrin-positive substances | / | Each impurity≤0.2% Sum of impurities≤ 0.5% | / | / |
Loss on drying | ≤0.50% | ≤0.50% | ≤0.50% | ≤0.50% |
Residue on ignition | ≤0.10% | ≤0.10% | ≤0.30% | ≤0.10% |
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 |