Neopentyl Glycol (NPG) is supplied as a diol raw material for resin, coating, and polymer-related manufacturing. It is suitable for unsaturated polyester resins, oil-free alkyd resins, polyurethane systems, plasticizers, and selected specialty chemical applications where stable diol functionality is required. The product is typically handled as a hygroscopic white crystalline solid under sealed storage conditions in a cool, dry, and ventilated environment.
Neopentyl Glycol (CAS 126-30-7)
- CAS: 126-30-7
- Synonyms: NPG, 2,2-Dimethyl-1,3-propanediol, Neopentyl diol, Dimethylolpropane isomer
- Einecs: 204-781-0
- Molecular Formula: C₅H₁₂O₂
- Grade: 90%/99%
- Package: 25kg/bag or as required
Product Description
Product Overview
Neopentyl Glycol is provided for industrial use as a chemical raw material and polyol building block. It is more appropriately positioned as a resin and polymer intermediate rather than as a finished end-use formulation ingredient or consumer product.
This product is commonly applied in unsaturated polyester resins, oil-free alkyd resins, polyurethane foams and elastomers, plasticizers, surfactants, insulating materials, printing inks, inhibitor systems, and synthetic lubricant-related applications where diol structure and formulation compatibility are important.
Product Information / Specifications
| Product Name | Neopentyl Glycol |
| Common Name | NPG |
| Synonyms | Neopentyl alcohol |
| CAS Number | 126-30-7 |
| EINECS Number | 204-781-0 |
| Molecular Formula | C5H12O2 |
| Available Grade | 90% / 99% |
| Standard Packaging | 25 kg/bag or as required |
| Product Identity | Chemical raw material / polyol intermediate |
Physical & Chemical Properties
| Appearance | White crystalline solid |
| Odor | Odorless |
| Hygroscopicity | Hygroscopic |
| Density | 1.06 g/cm³ at 21°C |
| Melting Point | 124–130°C |
| Boiling Point | 210°C |
| Flash Point | 129°C |
| Autoignition Temperature | 399°C |
| Sublimation Temperature | 210°C |
| Solubility | Easily soluble in water, lower alcohols, lower ketones, ethers, and aromatic hydrocarbon compounds |
Applications
- Raw material for unsaturated polyester resin production
- Used in oil-free alkyd resin and related coating resin systems
- Suitable for polyurethane foams and elastomer manufacturing
- Applied in plasticizers, surfactants, insulating materials, printing inks, and inhibitor systems
- Used in synthetic aviation lubricant oil additive production
- Can be used in coatings where gloss retention and reduced yellowing are required
- Also used as a raw material for selected stabilizers and pesticide-related production
Packaging
Standard packaging is commonly supplied in 25 kg bags or according to shipment requirement.
Packaging information may vary by grade, destination, and transport arrangement.
Storage Conditions
- Store in a cool, dry, and ventilated place.
- Avoid direct sunlight during storage.
- Keep packaging sealed to reduce moisture uptake.
- Recommended storage temperature is 18–25°C under normal conditions.
- Avoid high temperature and humid storage environments.
Safety Precautions
- Handle according to standard industrial operating procedures.
- Avoid contact with oxidants and acids.
- Prevent packaging and container damage during handling and transport.
- Use appropriate industrial hygiene control during storage and processing.
- Refer to the latest SDS before storage, transport, and industrial use.
FAQ
FAQ - Technical & Supply Chain
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.






