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