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Reaktiv-Gelb F-66 923 FW

CAS 156653-67-7

Benzenesulfonic acid, 2-[2-[5-(aminocarbonyl)-1-ethyl-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridinyl]diazenyl]-4-[[4-chloro-6-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-, sodium salt (1:2)

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

Molecular structure of 156653-67-7
2 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

CAS156653-67-7
PubChem CIDNot recorded
DTXSIDDTXSID00893237
FormulaC26H24ClN9Na2O12S3
Mol. Weight832.14 g/mol
SMILES[Na+].[Na+].CCN1C(O)=C(N=NC2=C(C=CC(NC3=NC(Cl)=NC(NC4=CC=C(C=C4)S(=O)(=O)CCOS([O-])(=O)=O)=N3)=C2)S([O-])(=O)=O)C(C)=C(C(N)=O)C1=O

Data Sources

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Brief citations

Reaktiv-Gelb F-66 923 FW (CAS 156653-67-7) https://chemicalindependence.com/chemical/156653-67-7/ EPA TSCA Inventory: CAS 156653-67-7. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory