Polyethylene glycol
Also known as: PEG, Poly(ethylene glycol), Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy-, 1,2-Ethanediol, homopolymer, Polyethylene oxide, Alcox E 30, Alcox E 160, Macrogol 300, Poly(ethylene glycol) 300, Poly(ethylene oxide), approx. M.W. 200,000, Poly(ethylene oxide), approx. M.W. 600,000, Poly(ethylene oxide), approx. M.W. 900,000
Polyethylene glycol (CAS 25322-68-3) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C5H12O2 and a molecular weight of 104.15 g/mol. Key properties include a melting point of -65ºC, a boiling point of 250ºC, a density of 1.125 and a flash point of 171ºC. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H311 — Toxic in contact with skin and H373 — May cause damage to organs through prolonged exposure. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 25322-68-3
- Jingsj CID
- J-31904-7
- Molecular Formula
- C5H12O2
- Molecular Weight
- 104.15 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -65ºC |
|---|---|
| Boiling Point | 250ºC |
| Density | 1.125 |
| Flash Point | 171ºC |
| Additional Property | >1 (vs air) |
| Vapor Pressure | <0.01 mm Hg ( 20 °C) |
| Refractive Index | 1.458-1.461 |
| Additional Property | H2O: 50 mg/mL, clear, colorless |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H311 — Toxic in contact with skin
- H373 — May cause damage to organs through prolonged exposure
- H411 — Toxic to aquatic life with long lasting effects
Activity & Biological Data
| Additional Information | [1]. Bakar B, et al. Evaluation of the neurotoxicity of the polyethylene glycol hydrogel dural sealant. Turk Neurosurg. 2013;23(1):16-24. |
|---|
Customs & Trade Information
| HS Code | 3404900000 |
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Frequently Asked Questions
What is the CAS number of Polyethylene glycol?
The CAS number of Polyethylene glycol is 25322-68-3.
What are the molecular formula and molecular weight of Polyethylene glycol?
Polyethylene glycol has molecular formula C5H12O2 and molecular weight 104.15 g/mol.
Is Polyethylene glycol hazardous?
Polyethylene glycol has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H311 — Toxic in contact with skin; H373 — May cause damage to organs through prolonged exposure.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Polyethylene glycol (CAS 25322-68-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31904-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.