neopentyl glycol CAS 126-30-7
Chemical Common Name: Neopentyl Glycol (Abbreviation: NPG)
CAS Registry Number: 126-30-7
Molecular Formula: C₅H₁₂O₂
Alternative Chemical Names: 2,2-Dimethyl-1,3-propanediol, 2,2-Dimethylpropan-1,3-diol
Appearance: White crystalline powder or granular solid
Sample Supply Status: Available for free testing samples
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Products Description
Neopentyl glycol is a branched 1,3-propanediol derivative substituted with two methyl groups on the second carbon atom of the propane backbone.
It presents favorable solubility performance: soluble in water, benzene and chloroform, and possesses extremely high solubility in ethanol and diethyl ether.
This polyol raw material features superior chemical inertness and remarkable thermal stability under regular processing and storage conditions, which lays a solid foundation for stable performance of downstream synthesized derivatives.
Supplementary standard physical indexes:
Melting Point: 126–130℃; Boiling Point: 208℃; Relative Density: 1.06 g/cm³ (25℃); Low hygroscopicity under ambient room temperature.
Chemical Properties
| Property | Value |
| Melting point | 126-128 °C |
| Boiling point | 208 °C |
| density | 1.06 |
| vapor density | 3.6 (vs air) |
| vapor pressure | <0.8 mm Hg (20 °C) |
| refractive index | 1.4406 (estimate) |
| Fp | 107 °C |
| storage temp. | Inert atmosphere, Room Temperature |
| solubility | 830g/l |
| pka | 14.57±0.10(Predicted) |
| form | Crystalline Chunks |
| color | White |
| explosive limit | 1.34%, 149°F |
| Water Solubility | 830 g/L (20 ºC) |
| Sensitive | Hygroscopic |
| Merck | 14,6458 |
| BRN | 605291 |
| Stability | Stable. Incompatible with strong oxidizing agents, acetic anhydride, acid chlorides, moisture. Combustible. |
| Cosmetics Ingredients Functions | SOLVENT PLASTICISER |
| InChI | 1S/C5H12O2/c1-5(2,3-6)4-7/h6-7H,3-4H2,1-2H3 |
| InChIKey | SLCVBVWXLSEKPL-UHFFFAOYSA-N |
| SMILES | CC(C)(CO)CO |
| LogP | -0.15 at 25℃ |
| CAS DataBase Reference | 126-30-7(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,3-Propanediol, 2,2-dimethyl-(126-30-7) |
| EPA Substance Registry System | Neopentyl glycol (126-30-7) |
Safety Information
| Item | Details |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38-36-41 |
| Safety Statements | 26-36-39 |
| WGK Germany | 1 |
| RTECS | TY5775000 |
| F | 3 |
| Autoignition Temperature | 750 °F |
| TSCA | TSCA listed |
| HS Code | 29053990 |
| Storage Class | 11 – Combustible Solids |
| Hazard Classifications | Eye Dam. 1 |
| Hazardous Substances Data | 126-30-7(Hazardous Substances Data) |
| Toxicity | rat,LCLo,inhalation,39000ppm/6H (39000ppm),Kodak Company Reports. Vol. 21MAY1971, |
Product Application
Comprehensive Industrial Applications
Neopentyl glycol is a vital polyol monomer extensively deployed across polyester synthesis, coating manufacture, lubricant processing, plasticizer production and multiple downstream fine chemical industries.
Polyester Raw Material
When adopted for polyester resin polymerization, NPG effectively upgrades finished polyester’s heat resistance, ultraviolet resistance and hydrolysis-resistant waterproof property. It conducts esterification reactions with varied fatty acids and carboxylic acids to produce synthetic ester lubricants; compared with naturally sourced ester products, such synthetic lubricants own prominent anti-oxidation capacity and superior hydrolysis stability.
Coating Industry
NPG is a core monomer for manufacturing base resins of various surface coatings. In powder coating formulations, it creates a narrow temperature difference between glass transition temperature and melting point of coating resin, optimizing powder leveling and curing property. Its applicable coating scenarios include conventional metal anticorrosive coatings, household appliance surface paints, metal furniture finishing coatings as well as automobile and mechanical equipment topcoats.
Lubricant & Fluid Field
It is a key feedstock for formulating synthetic hydraulic fluids, industrial synthetic lubricating oils, multipurpose greases and metalworking cutting fluids, and also widely used in high-end aircraft engine specialized lubricants.
Other Diversified Application Sectors
Apart from above core fields, neopentyl glycol also serves as an essential intermediate for textile auxiliary agents, pharmaceutical intermediates, pesticide raw materials, plasticizer synthesis and petroleum processing additives.
Supply & Delivery
Fast delivery time
Inventory: 2-3 working days
New production: 7-10 working days
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