Neopentyl Glycol

Neopentyl Glycol

CAS Number:126‑30‑7

Synonyms:2,2‑Dimethylpropane‑1,3‑diol; Dimethylolpropane; NPG Glycol

Chemical Formula:C₅H₁₂O₂

Product Introduction

A white, crystalline, hygroscopic diol with two primary –OH groups on a quaternary carbon. Offers outstanding hydrolytic, thermal, and UV stability, making it ideal for high-performance polyesters and lubricants.

Physical & Chemical Properties

Property Value
Appearance White crystalline solid
Density ~1.05 g/cm³ (solid)
Melting Point ~129 °C
Boiling Point ~208 °C
Flash Point ~129 °C
Solubility Good in water, alcohols, ketones; low in aromatics

Applications

  • Core glycol in polyester resins for coil coatings, gel coats, plasticizers, and fiber-reinforced plastics
  • Intermediate in synthetic lubricants, plasticizers, adhesives, and stabilizing agents
  • Enhances thermal stability in coatings and food-contact adhesives
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