Pentaethylene Glycol Monobenzyl Ether

Also known as: BnO-PEG5-OH, Benzyl-PEG5-alcohol, 1-phenyl-2,5,8,11,14-pentaoxahexadecan-16-ol, 1-phenyl-2,5,8,11,14-pentaoxahexadecan-16-ol, 2,5,8,11,14-Pentaoxahexadecan-16-ol, 1-phenyl-, 2-[2-[2-[2-(2-phenylmethoxyethoxy)ethoxy]ethoxy]ethoxy]ethanol, 2-[2-[2-[2-[2-(BENZYLOXY)ETHOXY]ETHOXY]ETHOXY]ETHOXY]ETHANOL, Benzyl-PEG6-alcohol

Pentaethylene Glycol Monobenzyl Ether (CAS 57671-28-0) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C17H28O6 and a molecular weight of 328.401 g/mol. Key properties include a boiling point of 437.2±40.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 218.2±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 57671-28-0
Jingsj CID: J-34161-7
Molecular Formula: C₁₇H₂₈O₆
Molecular Weight: 328.401 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	437.2±40.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	218.2±27.3 °C
Exact Mass	328.188599
PSA	66.38000
LogP	-0.18
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.497

Activity & Biological Data

Target	PEGs
Additional Information	[1]. Girardini M, et al. Cereblon versus VHL: Hijacking E3 ligases against each other using PROTACs. Bioorg Med Chem. 2019 Jun 15;27(12):2466-2479.

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 Pentaethylene Glycol Monobenzyl Ether?

The CAS number of Pentaethylene Glycol Monobenzyl Ether is 57671-28-0.

What are the molecular formula and molecular weight of Pentaethylene Glycol Monobenzyl Ether?

Pentaethylene Glycol Monobenzyl Ether has molecular formula C17H28O6 and molecular weight 328.401 g/mol.

What are the upstream and downstream products of Pentaethylene Glycol Monobenzyl Ether?

For Pentaethylene Glycol Monobenzyl Ether, Upstream Products: Pentaethylene glycol, Benzyl chloride, Benzyl bromide; Downstream Products: nonaethylene glycol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Pentaethylene Glycol Monobenzyl Ether (CAS 57671-28-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34161-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.