Kezdőlap »Aminosavak» Valin aminosav por (L-Valine)
Certificate of Analysis
Name of Product: L-Valine
Items |
Specifications |
Appearance: |
White, odorless crystalline powder having a bitter taste |
Assay(on dried basis): |
98.5 - 101.5% |
Loss on drying: |
0.30% max |
Residue on ignition: |
0.10% max |
Chloride: |
0.050% max |
Sulfate: |
0.030% max |
Arsenic: |
1.5 ppm max |
Heavy metals: |
0.0015% max |
Iron: |
0.0030% max |
Organic volatile impurities: |
Meets the requirement |
PH: |
5.5 - 7.0 |
Specific rotation: |
+26.6 º --- +28.4 º (20 ºC) |
Shelf Life: Two years when stored properly.