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Butanamide, 2,2'-[(2,2'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[N-(4-ethoxyphenyl)-3-oxo-

CAS 20139-66-6

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

Molecular structure of 20139-66-6
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

CAS20139-66-6
PubChem CIDNot recorded
DTXSIDDTXSID00885117
FormulaC36H34Cl2N6O6
Mol. Weight717.6 g/mol
SMILESCCOC1=CC=C(NC(=O)C(N=NC2=CC=C(C(Cl)=C2)C2=CC=C(C=C2Cl)N=NC(C(C)=O)C(=O)NC2=CC=C(OCC)C=C2)C(C)=O)C=C1

Data Sources

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Brief citations

Butanamide, 2,2'-[(2,2'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[N-(4-ethoxyphenyl)-3-oxo- (CAS 20139-66-6) https://chemicalindependence.com/chemical/20139-66-6/ EPA TSCA Inventory: CAS 20139-66-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory