Alpha Lipoic Acid


    AppearanceSlightly yellow crystal powder
    Molecular weight206.33


    (Limit of polymer)
    Assay99 to 101%
    IdentificationMeets the requirements
    Particle size100% through 40 mesh
    Bulk Density
    Heavy metalsMax 10 ppm
    CadmiumMax 1 ppm
    Chromatographic puritySingle Impurity: Max 0.1%
    Total Impurities: Max 2%
    Loss on dryingMax 0.2 %
    Melting point60 to 62°C
    Residual solventsCyclohexane: Max 1000ppm
    Ethyl Acetate: Max 250ppm
    Toluene: Max 20ppm
    LeadMax 3 ppm
    Specific Rotation-1 to 1°
    Residue on ignitionMax 0.1 %
    MercuryMax 0.1 ppm
    Shelf life2 years


    Total plate countMax 1000 cfu/g
    YeastsMax 100 cfu/g
    MouldsMax 100 cfu/g
    Staphylococcus aureusAbsence/g
    Escherichia ColiAbsence/g

    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 (1238)

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