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Benzenesulfonic acid, 4-(acetylamino)-2-[2-[2-hydroxy-3-[[(2-methoxyphenyl)amino]carbonyl]-1-naphthalenyl]diazenyl]-, sodium salt (1:1)

CAS 72269-59-1

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

Molecular structure of 72269-59-1
1 Na⁺
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

CAS72269-59-1
PubChem CIDNot recorded
DTXSIDDTXSID00888128
FormulaC26H21N4NaO7S
Mol. Weight556.52 g/mol
SMILES[Na+].COC1=CC=CC=C1NC(=O)C1=CC2=C(C=CC=C2)C(N=NC2=CC(NC(C)=O)=CC=C2S([O-])(=O)=O)=C1O

Data Sources

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Brief citations

Benzenesulfonic acid, 4-(acetylamino)-2-[2-[2-hydroxy-3-[[(2-methoxyphenyl)amino]carbonyl]-1-naphthalenyl]diazenyl]-, sodium salt (1:1) (CAS 72269-59-1) https://chemicalindependence.com/chemical/72269-59-1/ EPA TSCA Inventory: CAS 72269-59-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory