Tos-PEG3-Bn

Name: Tos-PEG3-Bn
Brand: ChemScene
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CAS No. 84131-04-4
Cat. No. CS-0037214
Purity≥96%
MDL No.MFCD31555345

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HazMat Fee

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Each bottle is packed as an Excepted Quantity, with a maximum of 1g for items in class 6.1 packing group I or II, and up to 25g for all other hazardous materials.

If shipping is charged to your FedEx account, the HazMat fee will be billed directly by the courier. Otherwise, the fee will be included on your invoice. To help you avoid the HazMat fee, we can package a 5g order of a class 6.1 packing group I or II material as five separate 1g units, and a 100g order of any other dangerous good as four 25g units. This packaging adjustment will be made unless you instruct otherwise on your purchase order. Below, you will find the fee schedule from FedEx for handling hazardous materials.

Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

There is a HazMat shipping fee for each item that qualifies as a dangerous good. Please contact our quotation team via email to confirm the details.

*For research and further manufacturing use only, not for direct human use.

Structure of 84131-04-4

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Description

This benzyloxy-functionalized sulfonate ester delivers a robust, moisture-tolerant leaving group for efficient etherification reactions. Featuring a triethylene glycol spacer flanked by benzyl-protected hydroxyls, it enables selective C–O bond formation under mild conditions. The electron-deficient para-methylphenylsulfonate moiety ensures high reactivity while maintaining stability during storage and handling.

Application

2-(2-(2-(Benzyloxy)ethoxy)ethoxy)ethyl 4-methylbenzenesulfonate serves as a robust, bench-stable protecting group reagent for primary alcohols, enabling selective etherification under mild conditions. Its trifluoromethylsulfonate-like reactivity facilitates efficient glycosylation and oligosaccharide synthesis, with the benzyloxy chain providing orthogonal deprotection compatibility. The p-toluenesulfonate leaving group ensures high chemoselectivity in complex molecule assembly, while the extended polyether tether enhances solubility and reduces aggregation during purification.

General Information

CAS No. 84131-04-4
Cat. No. CS-0037214
Purity ≥96%
MDL No. MFCD31555345
Storage -20°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₂₀H₂₆O₆S
Molecular Weight 394.48
Synonym(s) None
SMILES O=S(=O)(OCCOCCOCCOCC=1C=CC=CC1)C2=CC=C(C=C2)C

Computational Chemistry Data

TPSA 71.06
LogP 2.95032
H_Acceptors 6
H_Donors 0
Rotatable_Bonds 13

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P280-P302+P352

Quality Control

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Other Classifications

Building Blocks Functional Group Sulfonate

Building Blocks Functional Group Ether

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Key Words

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Tos-PEG3-Bn

CAS No. 84131-04-4

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