Triethylene glycol monobenzyl ether

Also known as: 2-[2-[2-(Benzyloxy)ethoxy]ethoxy]ethanol, 2-{2-[2-(Benzyloxy)ethoxy]ethoxy}ethan-1-ol, BnO-PEG3-OH, TEGmonobenzylether, TRIETHYLENEGLYCOLMONOBENZYL ETHER, TRIETHYLENEGLYKOLMONOBENZYLETHER, Triethylene Glycol Monobenzyl Ether, RARECHEM AH CK 0201, MFCD02093556, Ethanol, 2-[2-[2-(phenylmethoxy)ethoxy]ethoxy]-

Triethylene glycol monobenzyl ether (CAS 55489-58-2) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C13H20O4 and a molecular weight of 240.296 g/mol. Key properties include a boiling point of 358.0±27.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 170.3±23.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 55489-58-2
Jingsj CID: J-23704-7
Molecular Formula: C₁₃H₂₀O₄
Molecular Weight: 240.296 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	358.0±27.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	170.3±23.7 °C
Exact Mass	240.136154
PSA	47.92000
LogP	0.54
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.506

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 Triethylene glycol monobenzyl ether?

The CAS number of Triethylene glycol monobenzyl ether is 55489-58-2.

What are the molecular formula and molecular weight of Triethylene glycol monobenzyl ether?

Triethylene glycol monobenzyl ether has molecular formula C13H20O4 and molecular weight 240.296 g/mol.

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. "Triethylene glycol monobenzyl ether (CAS 55489-58-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23704-7 (accessed 2026-11-09).

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