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1H,3H-Thioxantheno[2,1,9-def]-2-benzopyran-1,3-dione

CAS 14121-49-4

EPA and Census publish no US supply data for this chemical.

Molecular structure of 14121-49-4
US productionNot reported
Top sourceNo public record

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Where It Comes From

EPA and Census publish no US supply data for this chemical.

Why It Matters

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

Chemical Identity

CAS14121-49-4
PubChem CIDNot recorded
DTXSIDDTXSID1065710
FormulaC18H8O3S
Mol. Weight304.32 g/mol
SMILESO=C1OC(=O)C2=CC=C3C4=CC=CC=C4SC4=CC=C1C2=C34

Data Sources

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Brief citations

1H,3H-Thioxantheno[2,1,9-def]-2-benzopyran-1,3-dione (CAS 14121-49-4) https://chemicalindependence.com/chemical/14121-49-4/ EPA TSCA Inventory: CAS 14121-49-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory