Description
Valine is one of the 20 amino acids that make up protein, and one of the eight essential amino acids required by the human body. It is a branched-chain amino acid that works with isoleucine and leucine to promote normal growth, repair tissues, regulate blood sugar, and provide the necessary energy.
Details
Specification
| L-Valine | CP2020 injection grade | EP10 | USP43 |
| Assay | ≥98.5% | 98.5-101.0% | 98.5-101.5% |
| PH | 5.5-6.5 | / | 5.5-7.0 |
| Specific rotation[a]D20 | +26.6°-+28.8° | +26.5°-+29.0° | / |
| Specific rotation[a]D25 | / | / | +26.6°-+28.8° |
| Transmittance(T430) | ≥98.0% | / | / |
| Appearance of solution | / | clear & colorless ≤BY6 | / |
| Chloride(Cl) | ≤0.02% | ≤0.02% | ≤0.05% |
| Ammonium(NH4) | ≤0.02% | ≤0.02% | / |
| Sulfate(SO4) | ≤0.03% | ≤0.03% | ≤0.03% |
| Iron(Fe) | ≤10PPM | ≤10PPM | ≤30PPM |
| Heavy metals(Pb) | ≤10PPM | / | ≤15PPM |
| Arsenic | ≤1PPM | / | / |
| Other amino acids | ≤0.5% | / | Individual impurities≤0.5% |
| Total impurities≤2.0% | |||
| Ninhydrin-positive substances | / | Impurity B at 570 nm≤0.4% | / |
| Each impurity ≤0.2% | |||
| Total ≤1.0% | |||
| Loss on drying | ≤0.20% | ≤0.50% | ≤0.30% |
| Residue on ignition | ≤0.10% | ≤0.10% | ≤0.10% |
| Total plate count | ≤ 1000 CFU/g | / | / |
| Moulds & Yeasts | ≤ 100 CFU/g | / | / |
| Endotoxin | <20 EU/g |
