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Tetraethylene glycol monotosylate

Also known as: 2-[2-[2-(2-Hydroxyethoxy)ethoxy]ethoxy]ethyl 4-methylbenzenesulfonate, 2-[2-[2-(2-Hydroxyethoxy)ethoxy]ethoxy]ethyl toluene-4-sulfonate, 2-[2-[2-(2-Hydroxyethoxy)ethoxy]ethoxy]ethyl tosylate, Monotosylated tetraethylene glycol, Tetraethylene glycol p-toluenesulfonate, Ts-tetraglycol, PEG5-Tos, Tos-PEG4, Tos-PEG4-OH, Hydroxy-PEG5-Tos, OH-PEG4-Tos

Tetraethylene glycol monotosylate (CAS 77544-60-6) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C15H24O7S and a molecular weight of 348.41200 g/mol. Key property: a flash point of >110 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
77544-60-6
Jingsj CID
J-1956223-3
Molecular Formula
C15H24O7S
Molecular Weight
348.41200 g/mol
Category
Solvents
Last updated
11/3/2026

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Physicochemical Properties

Flash Point>110 °C
Exact Mass348.12400
PSA110.67000
LogP1.21000

GHS Safety & Compliance

Corrosion / Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed
  • H314 — Causes severe skin burns and eye damage

Activity & Biological Data

TargetCleavable
Additional Information[1]. Park KD, et al. Useful tools for biomolecule isolation, detection, and identification: acylhydrazone-based cleavable linkers.Chem Biol. 2009 Jul 31;16(7):763-72.

Customs & Trade Information

HS Code2909499000
Summary2909499000. 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 Tetraethylene glycol monotosylate?

The CAS number of Tetraethylene glycol monotosylate is 77544-60-6.

What are the molecular formula and molecular weight of Tetraethylene glycol monotosylate?

Tetraethylene glycol monotosylate has molecular formula C15H24O7S and molecular weight 348.41200 g/mol.

Is Tetraethylene glycol monotosylate hazardous?

Tetraethylene glycol monotosylate has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Tetraethylene glycol monotosylate?

For Tetraethylene glycol monotosylate, Upstream Products: Tetraethylene glycol, p-Toluenesulfonyl chloride, p-Toluenesulfonic acid; Downstream Products: 2-[2-[2-(2-Aminoethoxy)ethoxy]ethoxy]ethanol, Azido-PEG4-alcohol, 11-Azido-3,6,9-trioxaundecan-1-amine.

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

Last updated:

How to cite: Jingsj. "Tetraethylene glycol monotosylate (CAS 77544-60-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1956223-3 (accessed 2026-11-09).

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