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    L-Cystine
    Product name: L-Cystine
    Molecular formula:

    C3H7NO2S3
    CAS NO.: 56-89-3
    Index:
    Other:

    Molecular formula ：C3H7NO2S3

    Molecular weight ：185.28818

    CAS NO. :56-89-3

    Item

    USP28

    Assay

    98.5～101%

    pH

    5.5～6.5

    Specific rotation[a]D020

    - 215°～ - 225°

    Chloride(Cl)

    ≤0.02%

    Ammonium(NH4)

    ≤0.02%

    Sulfate(SO4)

    ≤0.02%

    Iron(Fe)

    ≤10ppm

    Heavy metals(Pb)

    ≤10ppm

    Arsenic

    ≤1ppm

    Other amino acids

    Not detectable

    Loss on drying

    ≤0.20%

    Residue on ignition

    ≤0.10%

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