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Hotline: 400-0510-518
Tel: +86-510-80245888
Fax: +86-510-80245999
Mobile: +86-13771475147
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| Product Name: L-Histidine |
| Medicines: -- |
| Properties: white crystal or crystal powder |
| Formula: |
C6H9N3O2
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| Weight: 155.16 |
| Cas No: 71-00-1 |
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| Product Description: |
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Packing: inner double layer plastic film, outer fiber can; 25kg/drum
Storage: 2 years
【Quality Standard】
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Item
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AJI92
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USP31
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Assay
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99.0～101.0%
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98.5～101.5%
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pH
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7.0～8.5
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7.0～8.5
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Specific rotation[a]D020 |
+12.0°～+12.8° |
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[a]D025
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+12.6°～+14.0°º
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Transmittance(T430)
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clear & colorless
≥98.0%
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Chloride(Cl)
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≤0.02%
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≤0.05%
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Ammonium(NH4)
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≤0.02%
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Sulfate(SO4)
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≤0.02%
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≤0.03%
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Iron(Fe)
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≤10ppm
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≤30ppm
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Heavy metals(Pb)
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≤10ppm
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≤15ppm
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Arsenic
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≤1ppm
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Other amino acids
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conforms
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Loss on drying
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≤0.20%
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≤0.20%
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Residue on ignition
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≤0.10%
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≤0.40%
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Organic volatile impurities
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conforms
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Main uses: nutrient supplements, amino acid injection, compound amino acid preparation, for the cure of gastric ulcer and chemical research |
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