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2-Naphthalenesulfonic acid, 6-hydroxy-5-[2-(4-methyl-2-sulfophenyl)diazenyl]-, calcium salt (1:1)

CAS 96293-51-5

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

Molecular structure of 96293-51-5
1 Ca²⁺
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

CAS96293-51-5
PubChem CIDNot recorded
DTXSIDDTXSID40888768
FormulaC17H12CaN2O7S2
Mol. Weight460.49 g/mol
SMILES[Ca++].CC1=CC=C(N=NC2=C(O)C=CC3=C2C=CC(=C3)S([O-])(=O)=O)C(=C1)S([O-])(=O)=O

Data Sources

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Brief citations

2-Naphthalenesulfonic acid, 6-hydroxy-5-[2-(4-methyl-2-sulfophenyl)diazenyl]-, calcium salt (1:1) (CAS 96293-51-5) https://chemicalindependence.com/chemical/96293-51-5/ EPA TSCA Inventory: CAS 96293-51-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory