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1-Naphthalenesulfonic acid, 2-[2-[2-hydroxy-3-[(phenylamino)carbonyl]-1-naphthalenyl]diazenyl]-, calcium salt (2:1)

CAS 260058-67-1

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

Molecular structure of 260058-67-1
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

CAS260058-67-1
PubChem CIDNot recorded
DTXSIDDTXSID70891063
FormulaC54H36CaN6O10S2
Mol. Weight1033.11 g/mol
SMILES[Ca++].OC1=C(N=NC2=C(C3=CC=CC=C3C=C2)S([O-])(=O)=O)C2=CC=CC=C2C=C1C(=O)NC1=CC=CC=C1.OC1=C(N=NC2=C(C3=CC=CC=C3C=C2)S([O-])(=O)=O)C2=CC=CC=C2C=C1C(=O)NC1=CC=CC=C1

Data Sources

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Brief citations

1-Naphthalenesulfonic acid, 2-[2-[2-hydroxy-3-[(phenylamino)carbonyl]-1-naphthalenyl]diazenyl]-, calcium salt (2:1) (CAS 260058-67-1) https://chemicalindependence.com/chemical/260058-67-1/ EPA TSCA Inventory: CAS 260058-67-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory