DL-Methionine

    DESCRIPTION

    FormulaC5H11NO2S
    AppearanceWhite crystals or crystalline powder
    CAS No.59-51-8
    Molecular weight149.21

    SPECIFICATIONS

    Assay99.0 to 100.5%
    IdentificationPositive
    TransmittanceMin 98.0 %
    Chloride (Cl)Max 0.020 %
    Ammonium (NH4)Max 0.02 %
    pH5.6 to 6.1
    Heavy metals
    (Pb)
    Max 10 ppm
    Arsenic
    (As2O3)
    Max 1 ppm
    Loss on dryingMax 0.30 %
    Residue on ignitionMax 0.10 %
    Other Amino AcidsChromatographically not detectable.
    Iron (Fe)Max 10 ppm
    Sulphate
    (SO4)
    Max 0.020 %
    Shelf life2 Years


    Direct Food Ingredients will ensure that any material supplied this specification will confirm to the above physical and chemical properties. However, we have no control over the use of the material and can accept no responsibility for problems caused by the customer's failure to ensure the material supplied is suitable for the intended use.

    This specification has been last modified on Tue 19 April 2011 (542)

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