CAS number: 72-18-4
Molecular formula: C5H11NO2
molecular weight: 117.1478
Chemical structure:
PRODUCT NAME: | L-Valine | |
Shelf Life: | 2 years | |
Items | Limits | Test results |
Description | White crystals or crystalline powder | Conforms |
Identification(IR) | Concordant with the reference spectrum | Conforms |
Assay | 98.5~101.5% | 98.85% |
PH | 5.5~7.0 | 6.37 |
Specific rotation | +26.6°~+28.8° | +27.2° |
Loss on drying | ≤0.30% | 0.11% |
Residue on ignition | ≤0.10% | 0.06% |
Chloride(Cl) | ≤0.05% | <0.05% |
Iron(Fe) | ≤30ppm | <30ppm |
Sulfate(SO4) | ≤0.03% | <0.03% |
Arsenic(As) | ≤1.5ppm | <1.5ppm |
Heavy metals | ≤15ppm | <15ppm |
Organic volatile impurities | Meet the requirements | Conforms |
Conclusion:Passed test according to the Standard of USP24 |