D-Histidine |
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Product Name: D-Histidine
CAS#: 351-50-8
Molecular Formula: C6H9N3O2.
Molecular Weight: 155.16
Specifications:(Reference standard: AJI92)
Item
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Standard
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Analysis data
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Appearance
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White crystals or crystalline powder
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conforms
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Specific rotation[α]20/D
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-11.8 to -12.8°
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-11.82°
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State of solution
(Transmittance)
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Not less than 95.0%
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95.6%
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Chloride (Cl)
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Not more than 0.10%
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<0.10%
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Heavy metal(Pb)
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Not more than 10ppm
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<10ppm
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Arsenic(As2O3)
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Not more than 2ppm
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<2ppm
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Loss on drying
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Not more than 0.20%
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0.18%
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Residue on ignition(sulfated)
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Not more than 0.2%
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0.08%
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Assay
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98.0 to101.0%
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99.0%
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Conclusion
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The product conforms to the standard.
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Remark:
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Easy to moisture-absorbed; store in dry、dark、ventilated 、place.
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