Description

Dimethylol Butanoic Acid (DMBA) is a versatile, water-soluble diol carboxylic acid that serves as a key building block in polymer synthesis. Its bifunctional nature, featuring two hydroxyl groups and one carboxyl group, makes it an essential monomer for introducing ionic centers and cross-linking sites into polymer chains. This compound is particularly valuable for industries requiring high-performance, environmentally friendly coatings, adhesives, and resins, where it enhances properties like dispersion stability, adhesion, and mechanical strength.

Application

• Waterborne Polyurethane Dispersions (PUDs): A critical internal emulsifier and chain extender for producing stable, high-quality aqueous PU coatings and adhesives.
• Polyester Resins: Used as a monomer to synthesize carboxyl-functionalized polyesters for powder coatings and industrial finishes.
• Alkyd Resins: Incorporated to improve resin solubility, stability, and final film properties in coating formulations.
• Epoxy Curing Agents & Modifiers: Acts as a curing agent or modifier to enhance flexibility, adhesion, and chemical resistance of epoxy systems.
• UV-Curable Resins & Inks: Serves as a reactive diluent and cross-linker in radiation-curable formulations for fast-curing, low-VOC products.
• Personal Care & Cosmetic Polymers: Used in the synthesis of film-forming agents and fixative polymers for hairsprays, gels, and skincare products.

Basic Information

Product Name	Dimethylol Butanoic Acid
CAS No.	56743-27-2
Molecular Formula	C6H12O5
Molecular Weight	164.16 g/mol
Synonyms	2,2-Bis(hydroxymethyl)butyric Acid; DMBA; Dimethylolbutanoic Acid; 2,2-Bis(hydroxymethyl)butanoic Acid; α,α-Bis(hydroxymethyl)butyric Acid; Tetramethylol Acetic Acid Homolog
EINECS	Contact for details

Quality Control

Our Dimethylol Butanoic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets high-purity standards and consistent performance for polymer applications. Certificates of Analysis (COA) with detailed specifications are provided for each shipment to guarantee traceability and compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	108 - 112 °C
Water Content (KF)	≤ 0.5 %
Ash Content	≤ 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.