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

CAS 72906-62-8

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

Molecular structure of 72906-62-8
2 Cu²⁺ · 2 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

CAS72906-62-8
PubChem CIDNot recorded
DTXSIDDTXSID401033349
FormulaC33H17Cu2N4Na3O13S3
Mol. Weight969.76 g/mol
SMILES[Na+].[Na+].[Cu++].[Cu++].C=[Na+].[O-]C1=C(C=CC(=C1)C1=CC([O-])=C(C=C1)N=NC1=C([O-])C(=CC2=CC(=CC=C12)S([O-])(=O)=O)S([O-])(=O)=O)N=NC1=C([O-])C=CC2=CC(=CC=C12)S([O-])(=O)=O

Data Sources

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Brief citations

Cuprate(3-), [μ-[4-[2-[3,3'-di(hydroxy-κO)-4'-[2-[2-(hydroxy-κO)-6-sulfo-1-naphthalenyl]diazenyl-κN1][1,1'-biphenyl]-4-yl]diazenyl-κN1]-3-(hydroxy-κO)-2,7-naphthalenedisulfonato(7-)]]di-, sodium (1:3) (CAS 72906-62-8) https://chemicalindependence.com/chemical/72906-62-8/ EPA TSCA Inventory: CAS 72906-62-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory