Thifensulfuron methyl

CAS 79277-27-3

US productionNot reported

Import value, 2024$2.0B

Top sourceIreland 63%

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 293590 · basket

These shares come from HS customs code 293590, which covers 182 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).

IE 63%IrelandSG 14%SingaporeIN 7%IndiaCN 7%ChinaCH 2%Switzerland

Portugal
Spain
Italy
Austria
Israel
Hungary
Canada
South Korea
Netherlands
Finland
Poland
Indonesia
Ukraine
Mexico
South Africa
Croatia
Greece
Taiwan
Hong Kong

Why It Matters

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

Chemical Identity

CAS79277-27-3

PubChem CIDNot recorded

DTXSIDDTXSID1024124

FormulaC12H13N5O6S2

Mol. Weight387.39 g/mol

SMILESCOC(=O)C1=C(C=CS1)S(=O)(=O)NC(=O)NC1=NC(C)=NC(OC)=N1

Data Sources

EPA CompTox (DSSTox) · DTXSID1024124Retrieved 2026-04-29
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Thifensulfuron methyl (CAS 79277-27-3) https://chemicalindependence.com/chemical/79277-27-3/ EPA CompTox (DSSTox): 79277-27-3. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1024124 US Census international trade: HS 293590 for CAS 79277-27-3. Reporting year: 2024. https://usatrade.census.gov/