Kezdőlap »Aminosavak» L-Triptofán aminosav por (L-tryptophan)
Certificate of Analysis
Product Name: Tryptophan
ITEM |
SPECIFICATION |
RESULT |
Description: |
|
|
Appearance |
White or slightly yellow crystals or crystalline powder |
Complies |
Odor |
Characteristic |
Complies |
Melting point: |
281 to 282 ° C |
Complies |
Specific rotation[a]D |
-30.0°~ -32.5° |
Complies |
Identification |
AS PER CP2010 |
Complies |
PH |
5.4~6.4 |
Complies |
Transmittance |
≥95.0% |
Complies |
Chloride |
≤0.02% |
Complies |
Sulfate |
≤0.02% |
Complies |
Ammonium |
≤0.02% |
Complies |
Other amino acids |
≤0.5% |
Complies |
Molecular Formula |
C11H12N2O2 |
Complies |
Molecular Weight: |
204.23 |
Complies |
Tests: |
|
|
Loss on drying (105 ° C, 3h) |
≤ 0.3 |
0.13% |
Residue on ignition |
≤0.1% |
0.06% |
Iron |
≤0.002% |
Complies |
Heavy metals(as Pb) |
≤ 0.004 |
Complies |
Lead (%) |
≤ 0.001 |
Complies |
Arsenic (AS) |
≤0.0001% |
Complies |
Bacterial endotoxins |
≤50 EU/g |
Complies |
Shelf life:2 years when properly stored.