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Perfluoroisobutyl methyl ether

CAS 163702-08-7

U.S. production volumes are classified as confidential business information.

Molecular structure of 163702-08-7
US productionCBI
Import value, 2024$117M
Import volumeZero
Top sourceIndia 29%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 290919 · basket

EPA reports by year
2023
US production Confidential · Imports Zero
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 290919, which covers 93 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 29%IndiaCN 25%ChinaJP 20%JapanBR 6%BrazilDE 4%Germany
EPA-registered manufacturers (1)
3M

Why It Matters

Sectors
ElectronicsCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 3 functional roles.

  • •Heat transferring agent in Computer and Electronic Product ManufacturingUse—non-incorporative activities
  • •Cleaning agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Cleaning agent in Computer and Electronic Product ManufacturingUse—non-incorporative activities
  • •Solvent in Computer and Electronic Product ManufacturingUse—non-incorporative activities
  • •Solvent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS163702-08-7
PubChem CID4156734
DTXSIDDTXSID5042326
FormulaC5H3F9O
Mol. Weight250.06 g/mol
SMILESCOC(C(C(F)(F)F)(C(F)(F)F)F)(F)F

Data Sources

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Brief citations

Perfluoroisobutyl methyl ether (CAS 163702-08-7) https://chemicalindependence.com/chemical/163702-08-7/ EPA CompTox (DSSTox): DTXSID5042326. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID5042326 PubChem: 4156734. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/4156734 EPA Chemical Data Reporting: 163702-08-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 163702-08-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290919 for CAS 163702-08-7. Reporting year: 2024. https://usatrade.census.gov/