PERFLUORO(2-ETHOXYETHANE)SULFONIC ACID

• CAT Number: M018477
• CAS Number: 113507-82-7
• Molecular Formula: C4HF9O4S
• Molecular Weight: 316.09
• Purity: ≥95%
• Storage: Store at RT
• IUPAC Name: 1,1,2,2-tetrafluoro-2-(1,1,2,2,2-pentafluoroethoxy)ethanesulfonic acid
• InChI: InChI=1S/C4HF9O4S/c5-1(6,7)2(8,9)17-3(10,11)4(12,13)18(14,15)16/h(H,14,15,16)
• InChIKey: RJGUAQKOHAABLK-UHFFFAOYSA-N
• SMILES: C(C(F)(F)F)(OC(C(F)(F)S(=O)(=O)O)(F)F)(F)F

Perfluoro(2-ethoxyethane)sulfonic acid (Cat No.: M018477) is a perfluorinated sulfonic acid compound used primarily as an electrolyte additive and proton conductor in fuel cells and electrochemical systems. Known for its high chemical and thermal stability, PFESA exhibits strong acidity and excellent ionic conductivity due to its sulfonic acid group. Its perfluorinated backbone provides resistance to degradation in harsh environments. PFESA has also raised environmental concerns as a persistent organic pollutant, prompting regulatory scrutiny due to its bioaccumulative nature and potential toxicological effects.