Fluorosulfonic acid

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

Molecular structure of 7789-21-1
US ProductionCBI
Import Value$66M
Top SourceChina 46%

The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.

Where It Comes From

Customs basis: HS 281119 · basket

These shares come from HS customs code 281119, which covers 19 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries
CN 46%ChinaDE 17%GermanyMY 12%MalaysiaKR 5%South KoreaTW 5%Taiwan

Why It Matters

Sectors
Energy
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 1 sector as 1 functional role.

  • Catalyst in Petroleum Lubricating Oil and Grease ManufacturingProcessing as a reactant

Chemical Identity

CAS7789-21-1
PubChem CID24603
DTXSIDDTXSID3033511
FormulaFHO3S
Mol. Weight100.07 g/mol
SMILESOS(=O)(=O)F

Data Sources

DTXSID30335112026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

246032026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/24603/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/24603.json

7789-21-12026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 7789-21-12026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv