Chlorpyrifos

CAS 2921-88-2

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

CAS2921-88-2

PubChem CIDNot recorded

DTXSIDDTXSID4020458

FormulaC9H11Cl3NO3PS

Mol. Weight350.57 g/mol

SMILESCCOP(=S)(OCC)OC1=NC(Cl)=C(Cl)C=C1Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID4020458Retrieved 2026-04-29
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Chlorpyrifos (CAS 2921-88-2) https://chemicalindependence.com/chemical/2921-88-2/ EPA CompTox (DSSTox): 2921-88-2. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4020458 US Census international trade: HS 293339 for CAS 2921-88-2. Reporting year: 2024. https://usatrade.census.gov/