2,2-Dimethyl-1,3-propanediol
2,2-Dimethyl-1,3-propanediol (CAS 126-30-7), also known as Neopentyl Glycol, is a diol with the linear formula (CH3)2C(CH2OH)2 and a molecular weight of 104.15 g/mol. This white crystalline solid is a versatile building block used in the synthesis of various organic compounds. Its structure lends excellent thermal and hydrolytic stability to polymers derived from it, making it valuable in coatings, resins, and lubricants.
- IUPAC
- NPG Glycol,Neopentylglycol
- Synonyms
- 126-30-7(CH3)2C(CH2OH)2NPG GlycolNeopentylglycol
Polyester Resins
Neopentyl Glycol is a key monomer in the production of saturated and unsaturated polyester resins. These resins exhibit enhanced durability, weather resistance, and hydrolytic stability, finding applications in high-performance coatings, gel coats, and composites.
Polyurethanes
As a diol, it serves as a chain extender or crosslinker in polyurethane synthesis. The neopentyl structure imparts improved hydrolytic and thermal properties to polyurethane elastomers, foams, and adhesives.
Lubricants and Plasticizers
Esters derived from 2,2-Dimethyl-1,3-propanediol are used as synthetic lubricants and plasticizers. They offer good thermal stability and low volatility, suitable for demanding applications.
Chemical Synthesis
This diol acts as a valuable intermediate and building block in organic synthesis, enabling the creation of complex molecules and specialty chemicals.
| Molecular weight | 104.15 |
|---|---|
| Linear formula | (CH3)2C(CH2OH)2 |
| Assay | 99% |
| Vapour pressure | <0.8 mmHg (20 °C) |
| Vapour density | 3.6 (vs air) |
| Autoignition temp | 750 °F |
Hazard statements
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 103 °C / 217.4 °F |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 41 |
| Safety statements (S) | 26-39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2,2-Dimethyl-1,3-propanediol used for?
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2,2-Dimethyl-1,3-propanediol is primarily used in the synthesis of polyester resins, polyurethanes, synthetic lubricants, and plasticizers. It serves as a crucial building block in various chemical synthesis applications due to the excellent stability it imparts to derived polymers.
What is the CAS number and chemical formula for 2,2-Dimethyl-1,3-propanediol?
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The CAS number for 2,2-Dimethyl-1,3-propanediol is 126-30-7. Its linear formula is (CH3)2C(CH2OH)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,2-Dimethyl-1,3-propanediol with an assay of 99%. This product is supplied for research and industrial use. TSS does not represent this product as USP, BP, EP or other pharmacopoeia grades.
What are the main hazards associated with 2,2-Dimethyl-1,3-propanediol?
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2,2-Dimethyl-1,3-propanediol is classified with the GHS symbol 'GHS05' and the signal word 'Danger'. It carries the hazard statement H318, indicating it causes serious eye damage. Appropriate personal protective equipment, including eyeshields, gloves, and a dust mask (type N95), should be used during handling.
How is 2,2-Dimethyl-1,3-propanediol packed, shipped, and exported?
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2,2-Dimethyl-1,3-propanediol is carefully packed for safe transit. As a global supplier, Tech Serve Solutions has extensive experience in exporting chemicals worldwide, adhering to all relevant shipping regulations.
How can I request a sample or quote for 2,2-Dimethyl-1,3-propanediol?
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To request a sample or a quote for 2,2-Dimethyl-1,3-propanediol, please contact our sales team through the website or by phone. Provide your details and the quantity required, and we will respond promptly.
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