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    Buffers are essential in many different biological and biotechnical applications. GoldBio’s vast array of application-specific buffers include biological, electrophoretic and lysis buffers in order to ensure that we have exactly the right product for both your research needs as well as your budget.

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    Buffers are essential in many different biological and biotechnical applications. GoldBio’s vast array of application-specific buffers include biological, electrophoretic and lysis buffers in order to ensure that we have exactly the right product for both your research needs as well as your budget.

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    Buffers are essential in many different biological and biotechnical applications. GoldBio’s vast array of application-specific buffers include biological, electrophoretic and lysis buffers in order to ensure that we have exactly the right product for both your research needs as well as your budget. Peruse below for our most popular biological buffers! Click here for the comprehensive selection of GoldBio buffers.

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  • MES Free Acid Monohydrate, Ultra Pure

    Product Description

    MES monohydrate is a buffering agent used in biochemistry and molecular biology that was selected and described by Good et al. It is a zwitterionic, morpholinic buffer that is useful for a pH range of 5.5 – 6.7 and commonly used for cell culture media, as a running buffer in electrophoresis, and for protein purification in chromatography. MES lacks the ability to form a complex with most metal ions and is recommended for use as a non-coordinating buffer in solutions with metal ions. MES is often used in buffered culture media for bacteria, yeast, and mammalian cells. It is toxic towards plants at high concentrations, but can be used in culture media at lower concentrations for plants. Due to low ionic mobility, MES is regarded as an excellent buffer for use in capillary electrochromatography. MES is often employed as a substitute for the highly toxic cacodylate, as well as a substitute for the non-zwitterionic buffers citrate and malate. MES complexes with some organotin(IV) molecules that are being explored as antitumor agents.

    MES free acid or MES free acid monohydrate can be mixed with MES sodium salt to acquire desired pH. Alternatively, MES free acid or MES free acid monohydrate can be titrated with sodium hydroxide to attain desired pH.

    Product Specifications
    MES Free Acid, Monohydrate, Ultra Pure
    2-(N-Morpholino)ethanesulfonic acid, Monohydrate

    Formula: C6H13NO4S ∙ H2O

    MW: 213.25 g/mol

    Storage/Handling: Store in a dry and well-ventilated place.

    PubChem Chemical ID: 16218417

    Note: MES Hydrate (CAS# 1266615-59-1) and MES Monohydrate (CAS# 145224-94-8) differ only in the number of water molecules associated with the buffer in powder form. Regardless of the number of water molecules present, these buffers are identical when dissolved into an aqueous solution.

    Product Specifications

    Catalog ID M-090
    CAS # 145224-94-8
    MW 213.25 g/mol
    Storage/Handling Store desiccated at room temperature.

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