N-Acetyl -L-Cysteine Powder


    White crystalline powder, or colourless crystals. Free soluble in water and in alcohol, practically in soluble in methylenechloride.


    Assay98.5 to 101%
    IdentificationInfrared Absorption
    TransmittanceMin 98 %
    Organic Volatile ImpuritiesMeets the requirements
    Chloride (Cl)Max 0.04 %
    Ammonium (NH4)Max 0.02 %
    pH2.0 to 2.8
    Heavy metalsMax 10 ppm
    Related SubstancesMax 0.5 %
    ArsenicMax 1 ppm
    Loss on dryingMax 0.5 %
    Melting point106 to 110°C
    Specific Rotation21.3 to 27°
    State of SolutionClear and colourless
    Residue on ignitionMax 0.2 %
    Other Amino AcidsChromatographically not detected
    ZincMax 10 ppm
    Iron (Fe)Max 20 ppm
    SulphateMax 0.03 %


    YeastsMax 100 cfu/g
    MouldsMax 100 cfu/g
    Bacterial CountMax 100 cfu/g
    Staphylococcus aureusNegative
    Pseudomonas aeruginosaNegative
    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 2 July 2012 (1150)

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