Tolfenpyrad

CAS 129558-76-5

US productionNot reported

Import value, 2024$597M

Top sourceSwitzerland 53%

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

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 293319 · basket

These shares come from HS customs code 293319, which covers 133 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).

CH 53%SwitzerlandDE 22%GermanyIN 14%IndiaCN 4%ChinaIT 3%Italy

Sweden
Ukraine
Taiwan
Spain
Canada
Portugal
Slovakia
New Zealand
Netherlands
Croatia
Latvia

Why It Matters

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

Chemical Identity

CAS129558-76-5

PubChem CIDNot recorded

DTXSIDDTXSID6057952

FormulaC21H22ClN3O2

Mol. Weight383.88 g/mol

SMILESCCC1=NN(C)C(C(=O)NCC2=CC=C(OC3=CC=C(C)C=C3)C=C2)=C1Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID6057952Retrieved 2026-04-29
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Tolfenpyrad (CAS 129558-76-5) https://chemicalindependence.com/chemical/129558-76-5/ EPA CompTox (DSSTox): 129558-76-5. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6057952 US Census international trade: HS 293319 for CAS 129558-76-5. Reporting year: 2024. https://usatrade.census.gov/