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    HomeProductsBasic & Fine ChemicalsFine ChemicalsDMBA (Dimethylolbutanoic Acid) CAS 10097-02-6
    • DMBA (Dimethylolbutanoic Acid) CAS 10097-02-6

    DMBA (Dimethylolbutanoic Acid) CAS 10097-02-6

    DMBA (CAS 10097-02-6), chemically known as 2,2-Bis(hydroxymethyl)butyric acid, is a white crystalline powder with a diol-acid structure, primarily utilized as a superior internal emulsifier and hydrophilic chain extender in the manufacturing of waterborne polyurethanes (PUDs) and water-based polyester resins. This Dimethylolbutanoic acid compound functions as the critical hydrophilic modification agent in 2,2-Bis(hydroxymethyl)butyric acid based polymerization, introducing carboxylic acid groups into the polymer backbone that enable water dispersibility without the need for external surfactants. Compared to the traditional DMPA, DMBA offers better solubility and a lower melting point, resulting in easier processing and enhanced film properties. To support industrial-scale requirements, we provide bulk supply with competitive factory pricing and ensure rigorous quality control through customized specifications alongside standard technical documentation, including MSDS, TDS, COA.

    • CAS: 10097-02-6
    • Synonyms: 2,2-Bis(hydroxymethyl)butyric acid, Dimethylolbutanoic acid, DMBA, 2,2-Dimethylolbutyric acid, Bis(hydroxymethyl)butyric acid
    • Molecular Formula: C6H12O4
    • Grade: Industrial grade 99%
    • Package: 25KG/barrel
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    Product Description

    1 Technical Specifications (TDS)
    2 Applications
    3 Quality Assurance (QA)
    4 Storage, Handling & Safety

    Technical Specifications (TDS)

    The following data represents our standard export specifications, compliant with major Chinese manufacturing standards.

    Test ItemSpecificationTest Method
    AppearanceWhite crystalline powderVisual
    Purity (Assay)≥ 99.0%HPLC
    Melting Point108.0 – 115.0°CCapillary Method
    Moisture Content≤ 0.50%Karl Fischer
    Ash Content≤ 0.05%Gravimetric
    Hydroxyl Value725 – 750 mgKOH/gTitration
    Acid Value370 – 385 mgKOH/gTitration
    Iron (Fe)≤ 10 ppmICP-OES
    SolubilitySoluble in Water, Acetone, NMP—

    Applications

    DMBA is engineered to improve the stability, mechanical properties, and appearance of water-based polymer systems.

    1. Waterborne Polyurethane (PUD)

    • Role: Acts as the primary hydrophilic chain extender.
    • Benefit: The ethyl group in DMBA improves the flexibility and hydrolysis resistance of the final film compared to the methyl group in DMPA. It allows for the production of solvent-free PUDs by lowering the process viscosity.
    • End Uses: Leather finishing agents, textile coatings, water-based wood lacquers, and automotive basecoats.

    2. Water-Soluble Polyesters & Alkyds

    • Role: Functional monomer introducing carboxylic acid groups.
    • Benefit: Enables water dispersibility without external surfactants, improving adhesion and chemical resistance.

    3. Epoxy Resin Modification

    • Role: Cross-linking agent.
    • Benefit: Enhances the water compatibility of epoxy systems used in electro-deposition coatings (E-coat).

    Quality Assurance (QA)

    We understand that consistency is vital for polymer synthesis. Our manufacturing process adheres to strict quality control protocols:

    • Batch-to-Batch Consistency: Every lot is tested using HPLC (High-Performance Liquid Chromatography) to ensure purity ≥ 99.0%.
    • Impurity Control: We strictly monitor metal ion content (Fe, Na) to prevent catalytic interference during your polymerization process.
    • Traceability: Full documentation, including Certificate of Analysis (COA) and chromatograms, is provided with every shipment. Our facility operates under ISO 9001:2015 management standards.

    Storage, Handling & Safety

    Storage Conditions:

    • DMBA is hygroscopic (absorbs moisture from the air). It must be stored in tightly sealed original packaging.
    • Keep in a cool (< 30°C), dry, and well-ventilated area, away from direct sunlight and heat sources.
    • Recommended shelf life is 24 months when stored properly.

    Safety Precautions (PPE):

    • Inhalation: Use a dust mask (N95/P2) to avoid inhaling fine powder.
    • Skin/Eye Contact: Wear safety goggles and chemical-resistant gloves. DMBA acts as a mild acid; rinse immediately with plenty of water if contact occurs.
    • Disposal: Dispose of contents/container in accordance with local/regional/national regulations.
    • Refer to the Material Safety Data Sheet (MSDS) for comprehensive safety information.

    FAQ - Technical & Supply Chain

    • Q:

      What is the main advantage of using DMBA (CAS 10097-02-6) over DMPA?

      A: DMBA (C6H12O4) has a significantly lower melting point (approx. 110°C) and better solubility in organic solvents compared to DMPA (approx. 180°C), which allows for lower reaction temperatures, faster dissolution, and reduced risk of product yellowing or gelation during synthesis.
    • Q:

      Is DMBA suitable for solvent-free PUD production?

      A: Yes, its superior solubility and lower processing temperature make it the preferred hydrophilic chain extender for high-solid or solvent-free waterborne polyurethane systems, where DMPA's high melting point would be problematic.
    Documents

    Documents and Product Support

    For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

    • COA for batch-based quality reference
    • TDS for key physical and chemical information
    • SDS / MSDS for handling, storage, and safety reference
    • Packing information for sample, trial, and bulk orders
    • Technical communication based on application and specification requirements
    Quotation

    Information to Confirm Before Quotation

    Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

    • Product name and CAS number
    • Application or intended end use
    • Required purity, grade, or specification
    • Sample quantity, trial order, or bulk demand
    • Preferred packing form or net weight
    • Destination country or port
    • Required documents or compliance expectations
    Storage & Handling

    Packaging, Storage, and Handling Notes

    Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

    Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

    Supply Support

    Sample, Bulk Order and Repeat Supply Support

    Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

    For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

    Contact Form

    Use our contact form to send us your questions, suggestions or comments. We will respond as soon as possible.

    Product Categories

    Tags:

    Carboxylic Acid Diol Coating Resin Intermediate Polyurethane Chain Extender Waterborne Polyurethane Monomer

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