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8-(2-Chloro-4-aminophenylazo)-7-amino-3-sulfo-1-naphthol sodium salt

CAS 62134-44-5

2-Naphthalenesulfonic acid, 6-amino-5-[2-(4-amino-2-chlorophenyl)diazenyl]-4-hydroxy-, sodium salt (1:1)

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

Molecular structure of 62134-44-5
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

CAS62134-44-5
PubChem CIDNot recorded
DTXSIDDTXSID0069543
FormulaC16H12ClN4NaO4S
Mol. Weight414.8 g/mol
SMILES[Na+].NC1=CC(Cl)=C(C=C1)N=NC1=C2C(O)=CC(=CC2=CC=C1N)S([O-])(=O)=O

Data Sources

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Brief citations

8-(2-Chloro-4-aminophenylazo)-7-amino-3-sulfo-1-naphthol sodium salt (CAS 62134-44-5) https://chemicalindependence.com/chemical/62134-44-5/ EPA TSCA Inventory: CAS 62134-44-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory