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C.I.Disperse Blue 291

CAS 56548-64-2

Acetamide, N-[2-[2-(2-bromo-4,6-dinitrophenyl)diazenyl]-5-(diethylamino)-4-methoxyphenyl]-

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

Molecular structure of 56548-64-2
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

CAS56548-64-2
PubChem CIDNot recorded
DTXSIDDTXSID6069117
FormulaC19H21BrN6O6
Mol. Weight509.317 g/mol
SMILESCCN(CC)C1=C(OC)C=C(N=NC2=C(Br)C=C(C=C2[N+]([O-])=O)[N+]([O-])=O)C(NC(C)=O)=C1

Data Sources

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Brief citations

C.I.Disperse Blue 291 (CAS 56548-64-2) https://chemicalindependence.com/chemical/56548-64-2/ EPA TSCA Inventory: CAS 56548-64-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory