Date published: 2026-5-2

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Perfluoro(2-ethoxyethane)sulphonic acid (CAS 113507-82-7)

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CAS Number:
113507-82-7
Molecular Weight:
316.10
Molecular Formula:
C4HF9O4S
Supplemental Information:
This is as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Perfluoro(2-ethoxyethane)sulphonic acid is a perfluorinated compound with a carbon backbone containing an ethoxy group and a sulfonic acid functional group. It can act as a surfactant, which means it has both hydrophobic (water-repellent) and hydrophilic (water-attracting) properties. This makes it useful in formulations such as emulsifiers, wetting agents, and detergents. Perfluoro(2-ethoxyethane)sulphonic acid is known for its high ionic conductivity, which makes it suitable as an electrolyte material in fuel cells. Fuel cells are electrochemical devices that convert chemical energy into electrical energy, and Perfluoro(2-ethoxyethane)sulphonic acid can help facilitate the movement of ions within the cell.


Perfluoro(2-ethoxyethane)sulphonic acid (CAS 113507-82-7) References

  1. Infrared spectroscopic and DFT vibrational mode study of perfluoro(2-ethoxyethane) sulfonic acid (PES), a model nafion side-chain molecule.  |  Warren, DS. and McQuillan, AJ. 2008. J Phys Chem B. 112: 10535-43. PMID: 18681477
  2. Understanding the fingerprint region in the infra-red spectra of perfluorinated ionomer membranes and corresponding model compounds: Experiments and theoretical calculations  |  Marek Danilczuk a, Lu Lin a, Shulamith Schlick a, Steven J. Hamrock b, Mark S. Schaberg b. 2011. Journal of Power Sources. 196: 8216-8224.
  3. Reaction Kinetics of Hydroxyl Radicals with Model Compounds of Fuel Cell Polymer Membranes  |  A. M. Dreizler, E. Roduner. 2012. Fuel Cells. 12: 132-140.
  4. Effect of the Side-Chain Structure of Perfluoro-Sulfonic Acid Ionomers on the Oxygen Reduction Reaction on the Surface of Pt  |  Kensaku Kodama*†, Kenta Motobayashi‡§, Akihiro Shinohara†, Naoki Hasegawa†, Kenji Kudo†, Ryosuke Jinnouchi†, Masatoshi Osawa‡, and Yu Morimoto†. 2018. ACS Catal. 8: 694–700.
  5. Vital Environmental Sources for Multitudinous Fluorinated Chemicals: New Evidence from Industrial Byproducts in Multienvironmental Matrices in a Fluorochemical Manufactory  |  Anen He, Yong Liang, Feifei Li, Yao Lu, Chao Liu, Juan Li, Zhen Zhou, Nali Zhu, Chunyang Liao, Yawei Wang*, and Guibin Jiang, et al. 2022. Environ. Sci. Technol. 56: 16789–16800.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Perfluoro(2-ethoxyethane)sulphonic acid, 100 mg

sc-264023
100 mg
$84.00

Perfluoro(2-ethoxyethane)sulphonic acid, 1 g

sc-264023A
1 g
$255.00

Perfluoro(2-ethoxyethane)sulphonic acid, 5 g

sc-264023B
5 g
$505.00