Category:
Chiral Intermediates
CAS NO:
497-76-7
Standard:
In-house Standards,
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性状
Description
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白色或类白色结晶粉末
White or Off-white Crystalline Powder
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符合
Conform
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含量
Purity
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99.5%MIN
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99.80%
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砷盐
As
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2PPM MAX
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符合
Conform
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熔点
Melting Point
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198.5-201.5 ℃
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199-201 ℃
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PH值(1%水溶液)
PH (1%Water Solution)
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5-7
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6.30
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水溶液透明度
Water Solution
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Transparant, Colorless
透明,无色
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合格
Conforms
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比旋度
Specific Rotation
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[D]20 D =-66+ -2°
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-66.4°
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干燥失重
Loss on Drying
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≤0.50%
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合格
Conforms
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灼烧残渣
Residue on ignition
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≤0.50%
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合格
Conforms
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对苯二醌
Hydroquinone
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≤10PPM
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合格
Conforms
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重金属
Heavy Metal
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≤10PPM
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合格
Conforms
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微生物
Microorganism
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细菌 (Bacterial) ≤300CFU/G
霉菌(Mold) ≤100CFU/G
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20
20
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