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4-(Phenylamino)-3′-sulfoazobenzene

CAS 4005-68-9

Benzenesulfonic acid, 3-[2-[4-(phenylamino)phenyl]diazenyl]-

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

Molecular structure of 4005-68-9
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

CAS4005-68-9
PubChem CIDNot recorded
DTXSIDDTXSID2063260
FormulaC18H15N3O3S
Mol. Weight353.4 g/mol
SMILESOS(=O)(=O)C1=CC(=CC=C1)N=NC1=CC=C(NC2=CC=CC=C2)C=C1

Data Sources

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Brief citations

4-(Phenylamino)-3′-sulfoazobenzene (CAS 4005-68-9) https://chemicalindependence.com/chemical/4005-68-9/ EPA TSCA Inventory: CAS 4005-68-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory