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Cuprate(3-), [μ-[4-[2-[4'-[2-[6-amino-1-(hydroxy-κO)-3-sulfo-2-naphthalenyl]diazenyl-κN1]-3,3'-di(hydroxy-κO)[1,1'-biphenyl]-4-yl]diazenyl-κN1]-3-(hydroxy-κO)-2,7-naphthalenedisulfonato(7-)]]di-, sodium (1:3)

CAS 66418-17-5

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

Molecular structure of 66418-17-5
3 Na⁺ · 2 Cu²⁺
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

CAS66418-17-5
PubChem CIDNot recorded
DTXSIDDTXSID3070460
FormulaC32H16Cu2N5Na3O13S3
Mol. Weight970.74 g/mol
SMILES[Na+].[Na+].[Na+].[Cu++].[Cu++].NC1=CC2=CC(=C(N=NC3=C([O-])C=C(C=C3)C3=CC=C(N=NC4=C5C=CC(=CC5=CC(=C4[O-])S([O-])(=O)=O)S([O-])(=O)=O)C([O-])=C3)C([O-])=C2C=C1)S([O-])(=O)=O

Data Sources

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Brief citations

Cuprate(3-), [μ-[4-[2-[4'-[2-[6-amino-1-(hydroxy-κO)-3-sulfo-2-naphthalenyl]diazenyl-κN1]-3,3'-di(hydroxy-κO)[1,1'-biphenyl]-4-yl]diazenyl-κN1]-3-(hydroxy-κO)-2,7-naphthalenedisulfonato(7-)]]di-, sodium (1:3) (CAS 66418-17-5) https://chemicalindependence.com/chemical/66418-17-5/ EPA TSCA Inventory: CAS 66418-17-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory