Flag of the United StatesAmerican Chemical Independence

Benzo[b]thiophen-3(2H)-one, 6-ethoxy-2-(6-ethoxy-3-oxobenzo[b]thien-2(3H)-ylidene)-

CAS 3263-31-8

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

Molecular structure of 3263-31-8
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

CAS3263-31-8
PubChem CIDNot recorded
DTXSIDDTXSID3062940
FormulaC20H16O4S2
Mol. Weight384.46 g/mol
SMILESCCOC1=CC=C2C(=O)C(SC2=C1)=C1SC2=CC(OCC)=CC=C2C1=O

Data Sources

← Back to Dashboard

Brief citations

Benzo[b]thiophen-3(2H)-one, 6-ethoxy-2-(6-ethoxy-3-oxobenzo[b]thien-2(3H)-ylidene)- (CAS 3263-31-8) https://chemicalindependence.com/chemical/3263-31-8/ EPA TSCA Inventory: CAS 3263-31-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory