L-Isoleucine | CP2020 | USP24 | USP43 | FCC11 | EP10 |
Content | ≥98.5% | 98.5-101.5% | 98.5-101.5% | 98.5~101.5% | 98.5-101.0% |
Acidity | 5.5-6.5 | 5.5-7.0 | 5.5-7.0 | 5.5-7.0 | / |
Specific Rotation [a]D20 | +38.9°-+41.8° | / | / | +39.5~+41.5° | +40.0-+43.0 |
Specific Rotation [a]D25 | / | +38.9°-+41.8° | +38.9°-+41.8° | / | / |
Light Transmission | ≥98.0% | / | / | / | clear & colorless ≤BY6 |
Chloride | ≤0.02% | ≤0.05% | ≤0.05% | / | ≤0.02% |
Ammonium Salt | ≤0.02% | / | / | / | ≤0.02% |
Sulfate | ≤0.02% | ≤0.03% | ≤0.03% | / | ≤0.03% |
Iron Salt | ≤10PPM | ≤30PPM | ≤30PPM | / | ≤10PPM |
Heavy Metal | ≤10PPM | ≤15PPM | ≤15PPM | / | / |
Arsenic Salt | ≤1PPM | / | / | / | / |
Other Amino Acids | ≤0.5% | / | individual impurities≤0.5%total impurities≤2.0% | / | / |
Ninhydrin Active Substance | / | / | / | / | Impurities A and C at 570 nm≤ 0.3% each impruity ≤0.2% total ≤1.0% |
Loss On Drying | ≤0.20% | ≤0.30% | ≤0.30% | ≤0.30% | ≤0.5% |
Residue On Ignition | ≤0.10% | ≤0.30% | ≤0.30% | ≤0.20% | ≤0.10% |
Organic Volatiles | / | conforms | / | / | / |
Endotoxin | <20EU/g | / | / | / | <20EU/g |