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Butanamide, 2-[2-(4-chloro-2-nitrophenyl)diazenyl]-N-(4-methoxyphenyl)-3-oxo-

CAS 23739-66-4

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

Molecular structure of 23739-66-4
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

CAS23739-66-4
PubChem CIDNot recorded
DTXSIDDTXSID50885243
FormulaC17H15ClN4O5
Mol. Weight390.78 g/mol
SMILESCOC1=CC=C(NC(=O)C(N=NC2=CC=C(Cl)C=C2[N+]([O-])=O)C(C)=O)C=C1

Data Sources

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Brief citations

Butanamide, 2-[2-(4-chloro-2-nitrophenyl)diazenyl]-N-(4-methoxyphenyl)-3-oxo- (CAS 23739-66-4) https://chemicalindependence.com/chemical/23739-66-4/ EPA TSCA Inventory: CAS 23739-66-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory