Neopentyl glycol

CAS Number
126-30-7
EC Number
204-781-0
Abbreviation
NPG

What is Neopentyl glycol?

Neopentyl glycol (CAS 126-30-7), commonly abbreviated as NPG, is a diol monomer used as a building block in polymer and resin synthesis.

Where is Neopentyl glycol used?

  • Coatings and resins: improves weatherability and chemical resistance
  • Printing inks: binder systems with adhesion stability
  • Adhesives and sealants: NPG-based polyesters for flexible, durable bond lines
  • Personal care: humectant and solvent carrier in emollients
  • Construction and automotive assemblies frequently utilize these polyesters for long-term structural integrity.

Good to know: Its symmetrical structure resists hydrolysis and oxidation, giving finished materials improved durability. Its low irritation profile supports use in skin-contact products.

Commercial specifications

  • Cosmetic-grade material meeting relevant purity thresholds

Other Names (Synonyms)

2,2-Dimethylpropane-1,3-diol|2,2-DIMETHYL-1,3-PROPANEDIOL|1,3-Propanediol, 2,2-dimethyl-|Neopentylene glycol|Neol|NPG

Contact us for supply of Neopentyl glycol

Request Quote

What are the physical properties of Neopentyl glycol?

Melting Point 127 °C
Boiling Point 210 °C
Density 1.1 g/cm³
Flash Point 107 °C
Appearance white solid
Color White
Form Crystalline Chunks
Water Solubility 830 g/L (20 ºC)
Vapor Pressure <0.8 mm Hg ( 20 °C)
Refractive Index 1.4406 (estimate)
Log P -0.15 at 25℃

How is Neopentyl glycol classified and handled safely? Learn More

Danger
GHS05· Corrosive GHS07· Irritant

Hazard Statements

H315 Causes skin irritation
H318 Causes serious eye damage
H319 Causes serious eye irritation

Precautionary Statements

P264 Wash … thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P317 Get emergency medical help.
P321 Specific treatment (see … on this label).

Which trade and regulatory codes apply to Neopentyl glycol?

HS Code 29053900
Storage Class 11 - Combustible Solids
WGK (Germany) 1
Call Request Quote