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Chlorinated and fluorinated solvents

Perfluoroethyl ether

Also known as Perfluorodiethyl ester, Ethane, 1,1'-oxybis(1,1,2,2,2-pentafluoro-, 4-02-00-00469 (Beilstein Handbook Reference)

CAS 358-21-4Formula C4F10OMolar mass 254.02 g/mol
1 supplier listed
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Perfluoroethyl ether chemical structure, C4F10O, CAS 358-21-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
358-21-4
Formula
C4F10O
Molar mass
254.02 g/mol
HS code
290919
Category
Chlorinated and fluorinated solvents

What is Perfluoroethyl ether?

Plain description, key identifiers and synonyms

Perfluoroethyl ether is a chemical substance with the molecular formula C4F10O and a molar mass of 254.02 g/mol. Its CAS registry number is 358-21-4. The IUPAC name is 1,1,1,2,2-pentafluoro-2-(1,1,2,2,2-pentafluoroethoxy)ethane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1,1,1,2,2-pentafluoro-2-(1,1,2,2,2-pentafluoroethoxy)ethane
CAS number
358-21-4 CAS number cross-checked
Molecular formula
C4F10O
InChIKey
ORNGPPZBMMHKPM-UHFFFAOYSA-N
InChI
InChI=1S/C4F10O/c5-1(6,7)3(11,12)15-4(13,14)2(8,9)10
SMILES (canonical and isomeric)
C(C(F)(F)F)(OC(C(F)(F)F)(F)F)(F)F

Synonyms

  • Perfluorodiethyl ester
  • Ethane, 1,1'-oxybis(1,1,2,2,2-pentafluoro-
  • 4-02-00-00469 (Beilstein Handbook Reference)
  • Perfluorodiethyl ether
  • Ethane, 1,1'oxybis(1,1,2,2,2pentafluoro
  • Ethane, 1,1'oxybis(1,1,2,2,2pentafluoro (9CI)
  • Ethane, 1,1'-oxybis(1,1,2,2,2-pentafluoro-(9CI)
  • Bis(pentafluoroethyl) ether
  • 1,1,1,2,2-pentafluoro-2-(1,1,2,2,2-pentafluoroethoxy)ethane
  • Ether, bis(pentafluoroethyl)
  • 1,1,1,2,2-pentafluoro-2-(pentafluoroethoxy)ethane
  • 1,1,2,2,2-pentafluoro-1-(1,1,2,2,2-pentafluoroethoxy)ethane

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
254.02 g/molcalc.
Exact mass
253.9789 Dacalc.
LogP (octanol/water)
3.31calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
2calc.
Heavy atoms
15calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Perfluoroethyl ether suppliers

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Where suppliers are based

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Perfluoroethyl ether price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Use classes: Pfas.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Perfluoroethyl ether is traded under.

HS 2909.19Indicative HS code

Acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives…

World exports in 2024
$10.2B
−8.7% vs 2023, imports $10.4B
2019 to 2024
Top exporters
  1. United States32.0%
  2. China22.3%
  3. Saudi Arabia12.9%
Top importers
  1. Singapore16.5%
  2. Mexico14.8%
  3. Japan14.8%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Perfluoroethyl ether is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Perfluoroethyl ether, based on the data on this page

What is Perfluoroethyl ether?

Perfluoroethyl ether is a chemical substance with the molecular formula C4F10O and a molar mass of 254.02 g/mol. Its CAS registry number is 358-21-4. The IUPAC name is 1,1,1,2,2-pentafluoro-2-(1,1,2,2,2-pentafluoroethoxy)ethane.

What is the CAS number of Perfluoroethyl ether?

The CAS registry number of Perfluoroethyl ether is 358-21-4.

What is the molecular formula and weight of Perfluoroethyl ether?

The molecular formula of Perfluoroethyl ether is C4F10O and its molar mass is 254.02 g/mol.

What is Perfluoroethyl ether used for?

Use classes: Pfas.

Is Perfluoroethyl ether hazardous?

No GHS hazard classification for Perfluoroethyl ether is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Perfluoroethyl ether?

Perfluoroethyl ether is usually classified under HS code 290919 (Acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Perfluoroethyl ether?

CompoundList lists 1 supplier of Perfluoroethyl ether in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Perfluoroethyl ether?

Suppliers quote Perfluoroethyl ether on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Perfluoroethyl ether

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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