L-Leucine Powder


    AppearanceWhite crystalline powder
    Appearance of solutionClear and not more intensely coloured than reference solution BY6
    CAS No.61-90-5


    Assay98.5 to 101%
    Ninhydrin-positive substancesTest
    Chloride (Cl)Max 200 ppm
    Ammonium (NH4)Max 200 ppm
    Heavy metals
    Max 10 ppm
    Max 1 ppm
    Sulphated ashMax 0.1 %
    Max 1 ppm
    Loss on dryingMax 0.5 %
    Max 300 ppm
    Specific Rotation
    14.5 to 16.5°
    Max 0.1 ppm
    Iron (Fe)Max 10 ppm
    SulphateMax 300 ppm
    Shelf life2 years


    Total plate countMax 1000 cfu/g
    YeastsMax 100 cfu/g
    MouldsMax 100 cfu/g
    Staphylococcus aureusNegative
    Escherichia ColiNegative

    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 Mon 20 August 2012 (1239)

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