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Perfluorohexane

CAS 355-42-0

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

Molecular structure of 355-42-0
US productionCBI
Import value, 2024$12M
Top sourceJapan 56%

At least one company claimed its 2019 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: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 290349 · basket

EPA reports by year
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 290349, which covers 14 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
JP 56%JapanCN 28%ChinaGB 11%United KingdomTW 3%TaiwanIT 1%Italy
Domestic parents -- activity not disclosed (1)
Chemours

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS355-42-0
PubChem CID9639
DTXSIDDTXSID7046548
FormulaC6F14
Mol. Weight338.04 g/mol
SMILESC(C(C(C(F)(F)F)(F)F)(F)F)(C(C(F)(F)F)(F)F)(F)F

Data Sources

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Brief citations

Perfluorohexane (CAS 355-42-0) https://chemicalindependence.com/chemical/355-42-0/ EPA CompTox (DSSTox): DTXSID7046548. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7046548 PubChem: 9639. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/9639 EPA Chemical Data Reporting: 355-42-0. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290349 for CAS 355-42-0. Reporting year: 2024. https://usatrade.census.gov/