Dimethylolpropionic Acid (DMPA)


Bis-MPA; Dimethylol propionic acid; 2,2-Bis(hydroxymethyl)propionic acid; DMPA

Technical Data

CAS No.: 4767-03-7
EC No.: 225-306-3
Molecular Formula: C5H10O4
Molecular Weight: 134.13

FabriChem Specifications

Molecular FormulaC5H10O4C5H10O4C5H10O4
Molecular Weight134.13134.13134.13
AppearanceWhite Crystalline PowderWhite Crystalline PowderWhite Crystalline Powder
Melting Point170° – 180°C170° – 180°C170° – 180°C
Water Solubility120.7 g/L at 20°C120.7 g/L at 20°C120.7 g/L at 20°C
Assay98.5% wt Min.98.5% wt Min.98.5% wt Min.
Volatile component1.0% wt Max.1.0% wt Max.1.0% wt Max.
Acid value412 mg KOH/g Min.412 mg KOH/g Min.405 mg KOH/g Min.
Hydroxyl value824 mg KOH/g Min.824 mg KOH/g Min.810 mg KOH/g Min.
Water content0.3% wt Max.0.3% wt Max.0.3% wt Max.
Ash content0.03% wt Max.0.03% wt Max.0.03% wt Max.
Insoluble part – Carbon20 ppm Max.20 ppm Max.20 ppm Max.
Iron content4 ppm Max.4 ppm Max.4 ppm Max.
Sodium content70 ppm Max.20 ppm Max.70 ppm Max.
Particle size--80% wt ≤ 250 µm Min.

Molecular Structure



Available Grades of Dimethylolpropionic Acid:

• Regular: Standard grade Dimethylolpropionic Acid
• Low Sodium: Ideal for applications requiring insulation (i.e. insulated films & coatings)
• Fine: Smaller particle size for better quality of dispersions

2,2-Bis(hydroxymethyl)propionic acid was used in the synthesis and characterization studies of polyurethane dispersion modified with polymethylsiloxane (Si-PUD) and its nanocomposites incorporated with clays. 2,2-Bis(hydroxymethyl)propionic acid based dendrimers have potent applications as delivery systems for potent anticancer drugs such as cisplatin and doxorubicin, as well as agents for both boron neutron capture therapy and photodynamic therapy.

Applications for Dimethylolpropionic Acid include:

• Polyurethane dispersions
• Water soluble alkyds and polyester resins
• Powder coatings
• Epoxy ester coatings
• Printing inks
• Lubricating oil additives