Kezdőlap »Aminosavak» Metionin aminosav por (DL-Methionine)
Certificate of Analysis
Product Name: DL-Methionine
ITEM |
SPECIFICATION |
RESULT |
Description: |
|
|
Appearance |
White flaky crystal or crystalline powder |
Complies |
Odor |
Special smell/ Taste sweet |
Complies |
Assay |
≥98.5% |
Complies |
Specific rotation[a]D |
+21.0°~ +25.0° |
Complies |
PH |
5.6~6.1 |
Complies |
Transmittance |
≥98.0% |
Complies |
Chloride |
≤0.02% |
Complies |
Sulfate |
≤0.02% |
Complies |
Ammonium |
≤0.02% |
Complies |
Other amino acids |
≤0.5% |
Complies |
Molecular Formula |
C5H11O2NS |
Complies |
Molecular Weight: |
149.21 |
Complies |
Tests: |
|
|
Loss on drying |
≤0.2% |
0.10% |
Residue on ignition |
≤0.1% |
0.06% |
Iron |
≤0.0015% |
Complies |
Heavy metals(as Pb) |
≤10ppm |
Complies |
Arsenic (AS) |
≤0.0001% |
Complies |
Bacterial endotoxins |
≤25 EU/g |
Complies |
Storage:Store in cool and dry place. Shelf life:2 years when properly stored.