Product Name: L-Threonine
Molecular Formula： C4H9NO3
Molecular Weight： 119.12
CAS No： 72-19-5
характеристики продукта
| L-Threonine | AJI92 | CP2015 ( Injection Grade ) | EP8 | USP36 |
| Assay | 99.0-100.5% | ≥98.5% | 99.0-101.0% | 98.5-101.5% |
| PH | 5.2-6.2 | 5.0-6.5 | 5.0-6.5 | 5.0-6.5 |
| Specific rotation[a]D20 | -27.6°--29.0° | -26.0°--29.0° | -27.6°--29.0° | / |
| Specific rotation[a]D25 | / | / | / | -26.7°--29.1° |
| Transmittance(T430) | ≥98.0% | ≥98.0% | clear & colorless | / |
| Chloride(Cl) | ≤0.02% | ≤0.02% | ≤0.02% | ≤0.05% |
| Ammonium(NH4) | ≤0.02% | ≤0.02% | ≤0.02% | / |
| Sulfate(SO4) | ≤0.02% | ≤0.02% | ≤0.03% | ≤0.03% |
| Iron(Fe) | ≤10PPM | ≤10PPM | ≤10PPM | ≤30PPM |
| Heavy metals(Pb) | ≤10PPM | ≤10PPM | ≤10PPM | ≤15PPM |
| Arsenic | ≤1PPM | ≤1PPM | / | / |
| Other amino acids | conform | ≤0.50% | individual impurities≤0.20% total impurities≤0.5% | individual impurities≤0.5% total impurities≤2.0% |
| Ninhydrin-positive substances | / | / | conform | / |
| Loss on drying | ≤0.20% | ≤0.20% | ≤0.50% | ≤0.20% |
| Residue on ignition | ≤0.10% | ≤0.10% | ≤0.10% | ≤0.4% |
| Organic volatile impurities | / | / | / | / |
| Endotoxin | / | <12EU/g | / | / |
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