NEOPENTYL GLYCOL · CAS 126-30-7
High-purity BASF NPG for powder-coating polyesters, unsaturated polyesters, alkyd resins and UV-curable systems. Supplied as BASF NPG grade material by Ascent Group Co., Ltd.
Request a Quotation01 / PRODUCT
BASF NPG is the neopentyl glycol (NPG) produced under the BASF brand and supplied by Ascent Group as BASF NPG grade material. Chemically it is 2,2-dimethyl-1,3-propanediol (CAS 126-30-7), a symmetrical aliphatic diol carrying two primary hydroxyl groups.
BASF Neopentyl Glycol appears as a white crystalline flake or powder solid and is valued across the coatings and resin industries for the steric protection given by its gem-dimethyl structure, which slows hydrolytic and ultraviolet degradation in the finished polymer.
02 / DATA
Typical values of BASF NPG determined by standard analytical methods are listed below.
| Property | Unit | Test Method | Typical Value |
|---|---|---|---|
| Molecular weight | 104.15 | g/mol | Calculation |
| Melting point | 124–130 | °C | Capillary / DSC |
| Boiling point | ≈208 | °C | Distillation |
| Hydroxyl value | ≈1078 | mgKOH/g | Acetylation / titration |
| Density (20 °C) | ≈1.06 | g/cm³ | Pycnometer |
| Appearance | White crystalline solid | — | Visual |
03 / USES
From weather-resistant powder coatings to UV-curable systems, BASF NPG is a building block for durable resin chemistry.
BASF NPG is used as a diol component in weather-resistant polyester resins for architectural and super-durable powder coatings. Its gem-dimethyl group slows hydrolytic and UV degradation, helping finished films retain gloss and color. Formulators use it to balance flexibility, hardness and outdoor durability.
In unsaturated polyesters, NPG improves hydrolytic stability and chemical resistance compared with conventional glycols. It suits gel coats, sanitary ware and corrosion-resistant parts that face long-term water or chemical exposure.
BASF Neopentyl Glycol enters alkyd resins for industrial and coil coatings that demand weathering performance. The resulting alkyds show lower yellowing and better retention of mechanical properties under sunlight.
NPG serves as a building block for (meth)acrylate monomers and polyester acrylate oligomers in UV-curable inks and coatings. Its diol structure supports low-viscosity, high-crosslink-density formulations.
The diol is esterified into neopentyl-based plasticizers and synthetic lubricating esters valued for thermal and oxidative stability. These esters perform in high-temperature lubricant and grease applications.
As a protected diol, NPG is a versatile intermediate for active-ingredient synthesis where steric shielding of the hydroxyls is advantageous. It is used in selected agrochemical and pharmaceutical routes.
04 / SOURCING
BASF NPG provides a uniform difunctional diol with a controlled hydroxyl value near 1078 mgKOH/g. The symmetrical neopentyl backbone gives resins predictable reactivity and the hydrolytic, weathering and thermal stability that downstream formulators rely on.
Ascent Group supplies BASF NPG grade material backed by BASF's established manufacturing and quality controls. Buyers receive a consistent grade lot to lot, which simplifies incoming inspection and formulation validation.
Our team can assist with handling, storage and formulation questions around BASF Neopentyl Glycol. We help customers match the grade to their polyester, alkyd or UV-resin process and respond to technical inquiries promptly.
05 / HANDLING
BASF NPG is packed in 25 kg woven bags and is also available in big bags for bulk users. Store in a dry, well-ventilated area away from moisture and sources of heat.
Because the material is hygroscopic, keep bags sealed until use and avoid conditions that cause caking or lump formation. Handle with standard industrial hygiene measures.
06 / QUESTIONS
The CAS registry number of neopentyl glycol is 126-30-7. Its chemical name is 2,2-dimethyl-1,3-propanediol.
NPG is a difunctional diol, whereas trimethylolpropane (TMP) is a trifunctional triol used where extra crosslinking is needed. Compared with 2-methyl-1,3-propanediol (MPDiol), NPG carries two methyl groups on the central carbon, giving stronger steric protection and better hydrolytic and UV resistance.
NPG is incorporated as a co-diol in the polyester backbone, often as the principal diol in weather-resistant powder polyesters. The exact proportion is set by the target gloss retention and durability and is defined in the formulator's recipe.
Neopentyl glycol is commonly classified under HS code 2905.42 (other polyhydric alcohols). Importers should confirm the code with their local customs authority.
Minimum order quantity depends on destination and packaging. Please contact us to confirm the current MOQ and shipment options for your region.
07 / CONTACT
Ready to discuss BASF NPG for your polyester, alkyd or UV-resin application? Contact Kristy Chen for pricing, samples and technical data.
Ask about BASF Neopentyl Glycol availability, packaging, documentation and shipment options for your region.
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