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Benzenesulfonic acid, 2,2'-[(9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino]bis[5-methyl-

CAS 3443-90-1

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

Molecular structure of 3443-90-1
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

CAS3443-90-1
PubChem CIDNot recorded
DTXSIDDTXSID9063033
FormulaC28H22N2O8S2
Mol. Weight578.61 g/mol
SMILESCC1=CC(=C(NC2=CC=C(NC3=C(C=C(C)C=C3)S(O)(=O)=O)C3=C2C(=O)C2=C(C=CC=C2)C3=O)C=C1)S(O)(=O)=O

Data Sources

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Brief citations

Benzenesulfonic acid, 2,2'-[(9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino]bis[5-methyl- (CAS 3443-90-1) https://chemicalindependence.com/chemical/3443-90-1/ EPA TSCA Inventory: CAS 3443-90-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory