(Z)-1,1,1,4,4,4-Hexafluoro-2-butene

CAS 692-49-9

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

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$94M

Top sourceChina 85%

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 290351 · narrow

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 290351, which covers 4 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CN 85%ChinaMX 14%Mexico

Canada
United Kingdom
Vietnam

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Chemours

EPA-registered importers (2)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Basf Se · DE Germany

Basf

Why It Matters

Sectors

ConstructionMetals & MiningCore Chemicals

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 3 sectors as 3 functional roles.

•Propellants, non-motive (blowing agents) in Construction (60%)Processing—incorporation into formulation, mixture, or reaction product
•Cleaning agent in Miscellaneous Manufacturing (1%)Use—non-incorporative activities
•Refrigerants in All Other Chemical Product and Preparation Manufacturing (20%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS692-49-9

PubChem CID52991879

DTXSIDDTXSID00883476

FormulaC4H2F6

Mol. Weight164.05 g/mol

SMILESC(=CC(F)(F)F)C(F)(F)F

Data Sources

EPA CompTox (DSSTox) · DTXSID00883476Retrieved 2026-04-06
PubChem · compound 52991879Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

← Back to Dashboard ← Back to Construction

Brief citations

(Z)-1,1,1,4,4,4-Hexafluoro-2-butene (CAS 692-49-9) https://chemicalindependence.com/chemical/692-49-9/ EPA CompTox (DSSTox): DTXSID00883476. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID00883476 PubChem: 52991879. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/52991879 EPA Chemical Data Reporting: 692-49-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 692-49-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290351 for CAS 692-49-9. Reporting year: 2024. https://usatrade.census.gov/