Molecular Formula: C5H11NO2
Molecular Weight: 117.15
CAS No： 72-18-4
| L-Valine | CP2020 | EP11 | USP2023 | USP24 | AJI92 | FCC11 |
| Assay | ≥98.5% | 98.5-101.0% | 98.5-101.5% | 98.5-101.5% | 99.0-100.5% | 98.5～101.5% |
| PH | 5.5-6.5 | / | 5.5-7.0 | 5.5-7.0 | 5.5-6.5 | 5.5～7 |
| Binder content | / | / | / | / | / | / |
| Lecithin | / | / | / | / | / | / |
| Specific rotation[a]D20 | +26.6°-+28.8° | +26.5°-+29.0° | / | / | +27.6°-+29.0° | +26.7° ～+29° |
| Specific rotation[a]D25 | / | / | +26.6°-+28.8° | +26.6°-+28.8° | / | +26.6° ～+28.9° |
| Bulk Density | / | / | / | / | / | / |
| Tapped Density | / | / | / | / | / | / |
| Transmittance(T430) | ≥98.0% | / | / | / | ≥98.0% | / |
| Appearance of solution | / | clear & colorless ≤BY6 | / | / | / | / |
| Chloride(Cl) | ≤0.02% | ≤0.02% | ≤0.05% | ≤0.05% | ≤0.02% | / |
| Ammonium(NH4) | ≤0.02% | ≤0.02% | / | / | ≤0.02% | / |
| Sulfate(SO4) | ≤0.03% | ≤0.03% | ≤0.03% | ≤0.03% | ≤0.02% | / |
| Iron(Fe) | ≤10PPM | ≤10PPM | ≤30PPM | ≤30PPM | ≤10PPM | / |
| Heavy metals(Pb) | ≤10PPM | / | / | ≤15PPM | ≤10PPM | / |
| Arsenic | ≤1PPM | / | / | ≤1.5PPM | ≤1PPM | / |
| Lead | / | / | / | / | / | ≤ 5 ppm |
| Cadmium | / | / | / | / | / | / |
| Mercury | / | / | / | / | / | / |
| Other amino acids | ≤0.5% | / | Individual impurities≤0.5% Total impurities≤2.0% | / | conforms | / |
| Ninhydrin-positive substances | / | Impurity B at 570 nm≤0.4% Each impurity ≤0.2% Total ≤1.0% | / | / | / | / |
| Insoluble foreign matter | / | / | / | / | / | ≤ 50 ppm |
| Particle Size Range | / | / | / | / | / | / |
| Loss on drying | ≤0.20% | ≤0.50% | ≤0.30% | ≤0.30% | ≤0.20% | ≤ 0.3% |
| Residue on ignition | ≤0.10% | ≤0.10% | ≤0.10% | ≤0.10% | ≤0.10% | ≤ 0.1% |
| Organic volatile impurities | / | / | / | conform | / | / |
| Total plate count | ≤ 1000 CFU/g | ≤ 1000 CFU/g | ≤ 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 | ≤ 100 CFU/g | ≤ 100 CFU/g |
| L-Valine | High Purity | Instant | Granulation |
| Assay | ≥98.5% | ≥95.0% | ≥95% |
| PH | 5.5-6.5 | / | / |
| Binder content | / | / | ≤5% |
| Lecithin | / | 0.5～1.0% | / |
| Specific rotation[a]D20 | +26.6°-+28.8° | / | / |
| Specific rotation[a]D25 | / | / | / |
| Bulk Density | / | ≥0.30g/ml | ≥0.45g/ml |
| Tapped Density | / | ≥0.50g/ml | ≥0.55g/ml |
| Transmittance(T430) | ≥98.0% | / | / |
| Appearance of solution | / | / | / |
| Chloride(Cl) | ≤0.02% | / | / |
| Ammonium(NH4) | / | / | / |
| Sulfate(SO4) | ≤0.03% | / | / |
| Iron(Fe) | ≤0.001% | / | / |
| Heavy metals(Pb) | ≤0.001% | ≤10ppm | ≤10ppm |
| Arsenic | / | ≤1ppm | ≤1ppm |
| Lead | / | ≤5ppm | ≤5ppm |
| Cadmium | / | ≤1ppm | / |
| Mercury | / | ≤0.3ppm | / |
| Other amino acids | Alanine≤0.4% Phenylalanine≤0.2% Isoleucine≤0.5% Leucine≤0.5% Total impurities≤0.5% | / | / |
| Ninhydrin-positive substances | / | / | / |
| Insoluble foreign matter | / | / | / |
| Particle Size Range | / | ≥95% through 80 mesh | ≥90% through 20 mesh ≤30% through 80 mesh |
| Loss on drying | ≤0.2% | ≤1.0% | ≤2.0% |
| Residue on ignition | ≤ 0.1% | ≤0.50% | ≤0.5% |
| Organic volatile impurities | / | / | / |
| Total plate count | ≤ 1000 CFU/g | ≤ 1000 CFU/g | ≤ 1000 CFU/g |
| Moulds & Yeasts | ≤ 100 CFU/g | ≤ 100 CFU/g | ≤ 100 CFU/g |
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