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    • Betaine Anhydrous CAS 107-43-7
    • Betaine Anhydrous CAS 107-43-7

    Betaine Anhydrous CAS 107-43-7

    Betaine Anhydrous (trimethylglycine, TMG), CAS 107-43-7, is a zwitterionic quaternary ammonium compound supplied for feed, food, pharmaceutical and cosmetic applications. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

    • CAS: 107-43-7
    • Synonyms: trimethylglycine, glycine betaine, TMG, trimethylammonioacetate, oxyneurine
    • Einecs: 203-490-6
    • Molecular Formula: C₅H₁₁NO₂
    • Grade: ≥98% Betaine anhydrous, food / feed / pharma-supporting grade
    • Package: Standard: 25 kg fiber drum or 25 kg laminated bag with inner PE liner
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    Product Description

    Betaine Anhydrous, CAS 107-43-7, also known as trimethylglycine, glycine betaine or TMG, is a neutral zwitterionic quaternary ammonium compound; the EC/EINECS number is 203-490-6.

    Synonyms: trimethylglycine; glycine betaine; TMG; trimethylammonioacetate; oxyneurine.

    CAS: 107-43-7.

    Molecular formula: C₅H₁₁NO₂.

    Molecular weight: 117.15.

    EC number: 203-490-6.

    It is a white or colorless crystalline powder, odorless or bland with a slightly sweet taste, and very soluble in water (about 160 g/100 mL at room temperature).

    It is soluble in ethanol and methanol and slightly soluble in ether; the density is about 1.0 g/cm³ and the melting point is about 300–310 °C (decomposes).

    It is a hygroscopic zwitterion with a carboxyl pKa of about 1.8; it is stable under normal conditions and should avoid strong oxidizers.

    It is used as a methyl donor and osmoprotectant in poultry, swine, aquatic and ruminant feeds to support growth and stress resistance.

    It is used in food and beverage formulations and dietary supplements to support homocysteine metabolism, often combined with B vitamins.

    It is used in personal-care and oral-care products as a highly soluble humectant, and as a pharma-supporting functional ingredient.

    Confirm assay (≥98.0% on a dry basis), appearance, pH, water, related substances, heavy metals and microbial limits; select food, feed or pharma-supporting grade.

    Store in tightly closed, moisture-resistant packaging in a cool, dry area because the powder is hygroscopic; use dust-control measures and suitable PPE.

    Confirm the current product-specific specification.

    Confirm packaging with the requested quantity and destination requirements.

    Document requirements should be confirmed from the current specification, SDS, COA or other product-specific files.

    The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

    For an RFQ, state the intended use, required specification, quantity, packaging, destination and document needs.

    FAQ - Technical & Supply Chain

    • Q:

      What is Betaine Anhydrous CAS 107-43-7?

      A: Betaine Anhydrous is trimethylglycine, a neutral zwitterionic quaternary ammonium compound. It has the molecular formula C₅H₁₁NO₂ and a molecular weight of about 117.15 g/mol.
    • Q:

      How is Betaine Anhydrous different from betaine hydrochloride?

      A: Betaine Anhydrous is trimethylglycine in its neutral zwitterionic form. Betaine hydrochloride is the more acidic hydrochloride salt, so the two grades can differ in pH, compatibility and preferred formulation use.
    • Q:

      Why is Betaine Anhydrous used in animal feed?

      A: It acts as an osmoprotectant under heat or osmotic stress and supplies methyl groups that can partly spare methionine and choline. These functions support performance in poultry, swine and aqua feeds.
    • Q:

      What food, nutrition and personal-care applications use this product?

      A: Betaine Anhydrous is used in food supplements and nutritional formulations as a methyl donor, and in personal-care products as a highly soluble humectant. It also appears in oral-care products for moisture-related benefits.
    • Q:

      How should hygroscopic Betaine Anhydrous be stored and handled?

      A: Keep it in tightly closed, moisture-resistant packaging in a cool, dry area because the powder absorbs moisture from air. Use dust-control measures and suitable PPE during weighing and transfer.

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