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1,1,1,2-Tetrafluoro-2-chloropropane

CAS 421-73-8

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

Molecular structure of 421-73-8
US productionCBI
Import value, 2024$56M
Top sourceIndia 51%

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 290379 · basket

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

These shares come from HS customs code 290379, which covers 34 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 51%IndiaCN 38%ChinaJP 11%JapanMX 1%Mexico
Domestic parents -- activity not disclosed (2)
Chemours
Honeywell International (123312)

Why It Matters

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

Industrial Uses

Used in 2 sectors as 1 functional role.

  • •Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
  • •Intermediate in All Other Basic Inorganic Chemical ManufacturingProcessing as a reactant

Chemical Identity

CAS421-73-8
PubChem CID20453893
DTXSIDDTXSID70893542
FormulaC3H3ClF4
Mol. Weight150.5 g/mol
SMILESCC(C(F)(F)F)(F)Cl

Data Sources

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Brief citations

1,1,1,2-Tetrafluoro-2-chloropropane (CAS 421-73-8) https://chemicalindependence.com/chemical/421-73-8/ EPA CompTox (DSSTox): DTXSID70893542. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID70893542 PubChem: 20453893. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/20453893 EPA Chemical Data Reporting: 421-73-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 421-73-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290379 for CAS 421-73-8. Reporting year: 2024. https://usatrade.census.gov/