Neopentyl glycol
Also known as: 2,2-Dimethyl-1,3-propanediol, 2,2-Dimethylpropane-1,3-diol, 1,3-Dihydroxy-2,2-dimethylpropane, 2,2-Bis(hydroxymethyl)propane, NPG, NPG Glycol, 2,2-Dimethyl-1,3-propandiol, 1,3-Propanediol, 2,2-dimethyl-
Neopentyl glycol (CAS 126-30-7) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C5H12O2 and a molecular weight of 104.148 g/mol. Key properties include a melting point of 122-128 ºC, a boiling point of 208 ºC, a density of 1.06 and a flash point of 107.2±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 126-30-7
- Jingsj CID
- J-47608-5
- Molecular Formula
- C5H12O2
- Molecular Weight
- 104.148 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 122-128 ºC |
|---|---|
| Boiling Point | 208 ºC |
| Density | 1.06 |
| Flash Point | 107.2±0.0 °C |
| Exact Mass | 104.083733 |
| PSA | 40.46000 |
| LogP | -0.34 |
| Additional Property | 3.6 (vs air) |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.445 |
| Additional Property | 830 g/L (20 ºC) |
GHS Safety & Compliance
- H318 — Causes serious eye damage
Customs & Trade Information
| HS Code | 2905399090 |
|---|---|
| Summary | 2905399090 other diols。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:5.5%。general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Neopentyl glycol?
The CAS number of Neopentyl glycol is 126-30-7.
What are the molecular formula and molecular weight of Neopentyl glycol?
Neopentyl glycol has molecular formula C5H12O2 and molecular weight 104.148 g/mol.
Is Neopentyl glycol hazardous?
Neopentyl glycol has GHS signal word Danger and hazard statements H318 — Causes serious eye damage.
What are the upstream and downstream products of Neopentyl glycol?
For Neopentyl glycol, Upstream Products: 3-Hydroxy-2,2-dimethylpropanal, 1,4-Dioxane, Isobutyraldehyde; Downstream Products: 3-(5,5-dimethyl-2-oxido-1,3,2-dioxaphosphorinan-2-yl)-4-(3-nitrophenyl)-3-buten-2-one, 2-(3-Bromopropyl)-5,5-dimethyl-1,3-dioxane, 2-(3-bromo-2,2-dimethylpropyl)isoindoline-1,3-dione.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Neopentyl glycol (CAS 126-30-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47608-5 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.