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Cuprate(3-), [4,5-dihydro-4-[2-[8-(hydroxy-κO)-7-[2-[2-(hydroxy-κO)-4-[(2-hydroxyethyl)sulfonyl]-5-methoxyphenyl]diazenyl-κN1]-6-sulfo-2-naphthalenyl]diazenyl]-5-oxo-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylato(5-)]-, sodium hydrogen (1:2:1)

CAS 388616-20-4

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

Molecular structure of 388616-20-4
2 Na⁺ · 1 Cu²⁺ · 1 H⁺
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

CAS388616-20-4
PubChem CIDNot recorded
DTXSIDDTXSID401026035
FormulaC29H20CuN6Na2O15S3
Mol. Weight898.21 g/mol
SMILES[H+].[Na+].[Na+].[Cu++].COC1=CC(N=NC2=C(C=C3C=CC(=CC3=C2[O-])N=NC2C(=O)N(N=C2C([O-])=O)C2=CC=C(C=C2)S([O-])(=O)=O)S([O-])(=O)=O)=C([O-])C=C1S(=O)(=O)CCO

Data Sources

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Brief citations

Cuprate(3-), [4,5-dihydro-4-[2-[8-(hydroxy-κO)-7-[2-[2-(hydroxy-κO)-4-[(2-hydroxyethyl)sulfonyl]-5-methoxyphenyl]diazenyl-κN1]-6-sulfo-2-naphthalenyl]diazenyl]-5-oxo-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylato(5-)]-, sodium hydrogen (1:2:1) (CAS 388616-20-4) https://chemicalindependence.com/chemical/388616-20-4/ EPA TSCA Inventory: CAS 388616-20-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory