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Trisodium 8-((4-((4-aminophenyl)azo)-6-sulphonatonaphthyl)azo)-5-((2-hydroxy-6-sulphonatonaphthyl)azo)naphthalene-2-sulphonate

CAS 3626-30-0

2-Naphthalenesulfonic acid, 8-[2-[4-[2-(4-aminophenyl)diazenyl]-6-sulfo-1-naphthalenyl]diazenyl]-5-[2-(2-hydroxy-6-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:3)

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

Molecular structure of 3626-30-0
3 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

CAS3626-30-0
PubChem CIDNot recorded
DTXSIDDTXSID40889472
FormulaC36H22N7Na3O10S3
Mol. Weight877.76 g/mol
SMILES[Na+].[Na+].[Na+].NC1=CC=C(C=C1)N=NC1=C2C=C(C=CC2=C(C=C1)N=NC1=C2C=C(C=CC2=C(C=C1)N=NC1=C(O)C=CC2=CC(=CC=C12)S([O-])(=O)=O)S([O-])(=O)=O)S([O-])(=O)=O

Data Sources

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Brief citations

Trisodium 8-((4-((4-aminophenyl)azo)-6-sulphonatonaphthyl)azo)-5-((2-hydroxy-6-sulphonatonaphthyl)azo)naphthalene-2-sulphonate (CAS 3626-30-0) https://chemicalindependence.com/chemical/3626-30-0/ EPA TSCA Inventory: CAS 3626-30-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory