L-Tryptophan

    DESCRIPTION

    AppearanceWhite crystals or crystalline powder

    SPECIFICATIONS

    Assay98.5 to 101.5%
    IdentificationConforms
    Organic Volatile ImpuritiesConforms
    Chloride (Cl)Max 0.05 %
    Sulphate (SO4)Max 0.03 %
    pH5.5 to 7.0
    Heavy metalsMax 0.0015 %
    Loss on dryingMax 0.3 %
    Specific Rotation [°]D20-29.4 to -32.8°
    Residue on ignitionMax 0.1 %
    Iron (Fe)Max 0.003 %
    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 Thu 18 November 2010 (280)

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