| 质量等级 | 包装(采购量区间) | 价格 | 库存 |
|---|---|---|---|
| 99% | 25kg桶 | 面议 | 充足 |
C5H11NO2
| L-Valine | CAS NO:72-18-4 |
| Chemical Name | L-Valine |
| Molecular Structure |
|
| Molecular Formula | C5H11NO2 |
| Molecular Weight | 117.15 |
| Characteristics |
White crystalling powder white crystals |
| Packing |
25㎏/drum,25㎏/carton |
| Quality Standard | AJI92/USP28/EP5/FCCIV |
Specification
|
Specific rotation[a]D20° |
+27.6°~+29.0° |
|
State of solution |
Clear colorless |
|
(Tranamittance) |
≥98.0% |
|
Ammonium(NH4) |
≤0.02% |
|
Sulfate(SO4) |
≤0.020% |
|
Iron(Fe) |
≤10PPm |
|
Heavy metals(Pb) |
≤10PPm |
|
Arsenic(As2O3) |
≤1PPm |
|
Loss on drying |
≤0.20% |
|
Residue on ignition (Sulfated) |
≤0.10% |
|
Assay |
99.0~100.5% |
|
PH |
5.5~6.5 |