neopentyl glycol
CAS Number: 126-30-7
Chemical Formula: C5H12O2
Synonyms: 2,2-Dimethyl-1,3-propanediol, NPG
Appearance: White crystalline solid
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Neopentyl glycol is a white, crystalline, hygroscopic solid with low volatility. It is readily soluble in water, methanol, ethanol, and isopropanol, slightly soluble in diethyl ether. It is widely used in the synthesis of saturated polyester resins, polyurethane foams, plasticizers, lubricants, and coatings. It imparts excellent hardness, flexibility, weather resistance, and chemical stability to polymers due to its unique neopentyl structure.
Parameters
| Property | Value |
| Melting point | 127-130 °C (lit.) |
| Boiling point | 204 °C (lit.) |
| density | 1.06 g/cm3 at 25 °C |
| vapor pressure | <0.01 mm Hg (20 °C) |
| refractive index | 1.4500 (estimate) |
| Fp | 107 °C |
| storage temp. | Sealed in dry, Room Temperature |
| solubility | Soluble in water, alcohols; slightly soluble in ethers |
| pka | 14.0 (estimated) |
| form | Crystalline Solid |
| color | White |
| Water Solubility | 180 g/L (20 °C) |
| Stability | Stable. Hygroscopic. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 126-30-7 (CAS DataBase Reference) |
| EPA Substance Registry System | Neopentyl glycol (126-30-7) |
Safety Information
| Item | Value |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36 |
| WGK Germany | 1 |
| RTECS | TY2965000 |
| TSCA | TSCA listed |
| HS Code | 2905310000 |
| Toxicity | LD50 orally in Rat: >2000 mg/kg |
Product Application of Neopentyl Glycol CAS#126-30-7
1. Used in the production of saturated polyester resins for powder coatings, coil coatings, and high-performance finishes.
2. Serves as a raw material for polyurethane systems, providing enhanced hydrolytic stability and weatherability.
3. Applied in synthetic lubricants, plasticizers, and alkyd resins for improved durability and low-temperature properties.
4. Used as an intermediate in pharmaceutical and agricultural chemical synthesis.
5. Employed in unsaturated polyester resins for fiberglass-reinforced plastics.
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