Cysteine

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描述
外观 White crystalline powder
化验 98.0~102.0%
Specific rotation +5.6°~+8.9°
Loss on drying =<1.0 %
Transmittance >=98.0%
Sulfate (as SO4) =<0.02 %
Ammonium as (as NH4) =<0.02%
Iron (as Fe) =<0.001%
重金属(以 Pb 计) =<0.001%
砷(以 As 计) =<0.0001%
pH Value 0.5~2.0
Residue on ignition =<0.1%
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