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Dithianon

CAS 3347-22-6

Molecular structure of 3347-22-6
US productionNot reported
Import value, 2024$6.4B
Top sourceSingapore 36%

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 293499 · basket

These shares come from HS customs code 293499, which covers 575 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
SG 36%SingaporeIE 23%IrelandCN 11%ChinaCH 6%SwitzerlandIN 5%India

Why It Matters

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

Chemical Identity

CAS3347-22-6
PubChem CIDNot recorded
DTXSIDDTXSID8040270
FormulaC14H4N2O2S2
Mol. Weight296.32 g/mol
SMILESO=C1C2=C(SC(C#N)=C(S2)C#N)C(=O)C2=C1C=CC=C2

Data Sources

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Brief citations

Dithianon (CAS 3347-22-6) https://chemicalindependence.com/chemical/3347-22-6/ EPA CompTox (DSSTox): 3347-22-6. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8040270 US Census international trade: HS 293499 for CAS 3347-22-6. Reporting year: 2024. https://usatrade.census.gov/