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Butafenacil

CAS 134605-64-4

Molecular structure of 134605-64-4
US productionNot reported
Import value, 2024$7.6B
Top sourceIreland 61%

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293359 · basket

These shares come from HS customs code 293359, which covers 295 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 61%IrelandCH 30%SwitzerlandGB 2%United KingdomCN 2%ChinaIN 1%India

Why It Matters

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

Chemical Identity

CAS134605-64-4
PubChem CIDNot recorded
DTXSIDDTXSID9034365
FormulaC20H18ClF3N2O6
Mol. Weight474.82 g/mol
SMILESCN1C(=O)N(C(=O)C=C1C(F)(F)F)C1=CC(C(=O)OC(C)(C)C(=O)OCC=C)=C(Cl)C=C1

Data Sources

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Brief citations

Butafenacil (CAS 134605-64-4) https://chemicalindependence.com/chemical/134605-64-4/ EPA CompTox (DSSTox): 134605-64-4. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9034365 US Census international trade: HS 293359 for CAS 134605-64-4. Reporting year: 2024. https://usatrade.census.gov/