Pyridalyl

CAS 179101-81-6

US productionNot reported

Import value, 2024$1.3B

Top sourceChina 32%

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 293339 · basket

These shares come from HS customs code 293339, which covers 397 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 32%ChinaIN 15%IndiaDE 10%GermanyBE 9%BelgiumCH 8%Switzerland

Taiwan
Ukraine
Sweden
Argentina
Canada
Finland
Malta
Israel
Netherlands
Denmark
United Arab Emirates
Mexico
Brunei
Slovakia
Australia
South Africa
Poland
Latvia
Lithuania
Estonia
Slovenia
Czech Republic
Croatia
Hong Kong

Why It Matters

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

Chemical Identity

CAS179101-81-6

PubChem CIDNot recorded

DTXSIDDTXSID8034875

FormulaC18H14Cl4F3NO3

Mol. Weight491.11 g/mol

SMILESFC(F)(F)C1=CN=C(OCCCOC2=C(Cl)C=C(OCC=C(Cl)Cl)C=C2Cl)C=C1

Data Sources

EPA CompTox (DSSTox) · DTXSID8034875Retrieved 2026-04-29
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Pyridalyl (CAS 179101-81-6) https://chemicalindependence.com/chemical/179101-81-6/ EPA CompTox (DSSTox): 179101-81-6. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8034875 US Census international trade: HS 293339 for CAS 179101-81-6. Reporting year: 2024. https://usatrade.census.gov/