Octaethylene glycol monomethyl ether
Also known as: 2,5,8,11,14,17,20,23-octaoxapentacosan-25-ol, 2-[2-[2-[2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol, 3,6,9,12,15,18,21,24-octaoxapentacosan-1-ol, O-methyl-octaethylene glycol, MPEG8, mPEG8-OH, Methyl-PEG8-alcohol, Octaethylene Glycol MonoMethyl Ether
Octaethylene glycol monomethyl ether (CAS 25990-96-9) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C17H36O9 and a molecular weight of 384.462 g/mol. Key properties include a boiling point of 454.0±40.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 228.4±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 25990-96-9
- Jingsj CID
- J-34918-8
- Molecular Formula
- C17H36O9
- Molecular Weight
- 384.462 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 454.0±40.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 228.4±27.3 °C |
| Exact Mass | 384.235931 |
| PSA | 94.07000 |
| LogP | -3.30 |
| Vapor Pressure | 0.0±2.5 mmHg at 25°C |
| Refractive Index | 1.451 |
| Storage Conditions | 2-8°C |
Activity & Biological Data
| Target | PEGs |
|---|---|
| Additional Information | [1]. An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562 |
Customs & Trade Information
| HS Code | 2909499000 |
|---|---|
| Summary | 2909499000. ether-alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives. 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 Octaethylene glycol monomethyl ether?
The CAS number of Octaethylene glycol monomethyl ether is 25990-96-9.
What are the molecular formula and molecular weight of Octaethylene glycol monomethyl ether?
Octaethylene glycol monomethyl ether has molecular formula C17H36O9 and molecular weight 384.462 g/mol.
What are the upstream and downstream products of Octaethylene glycol monomethyl ether?
For Octaethylene glycol monomethyl ether, Upstream Products: 2-(2-(2-Chloroethoxy)ethoxy)ethanol, Hexaethylene glycol monomethyl ether, Pentaethylene glycol monomethyl ether; Downstream Products: O-Methyl-undecaethylene glycol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Octaethylene glycol monomethyl ether (CAS 25990-96-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34918-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.