| Customization: | Available |
|---|---|
| Type: | Arginine |
| Chemical Character: | Neutral |
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|
Analysis
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Specification
|
Result
|
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Physical Description
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|
|
|
Description
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White crystals or crystalline powder
|
White crystals or crystalline powder
|
|
Specific rotation
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+12.6.0°~+14.0°
|
+13.18°
|
|
PH Value
|
7.8~ 8.5
|
7.72
|
|
Chemical Tests
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|
|
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Identification
|
As per USP 39
|
As per USP 39
|
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Assay
|
98.5%~101.5%
|
99.7%
|
|
Loss on drying
|
0.2% Max
|
0.15%
|
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Residue on ignition
|
0.40% Max
|
0.08%
|
|
Heavy metals
|
0.0015% Max
|
<0.0015%
|
|
Sulfate
|
0.03% Max
|
<0.03%
|
|
Iron
|
0.003% Max
|
<0.003%
|
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Chloride
|
0.005% Max
|
<0.005%
|
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Conclusion
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Complies with the standards.
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Product Name:
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Histidine
|
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Other name:
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L histidine
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Spec./Purity:
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99.0%
|
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Cas No.:
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71-00-1
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Appearance:
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White powder
|
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Shelf Life:
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2 years
|
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Achromatic acicular or flake crystals, softened at 277ºC and decomposed at 287ºC.At 25ºC, the solubility in water is 41.9g/L, very slightly soluble in alcohol, insoluble in ether and chloroform.Sweet taste.
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