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Tetrasodium;6-amino-3-[(5-nitro-2-oxido-3-sulfonatophenyl)diazenyl]-4-oxidonaphthalene-2-sulfonate;6-amino-4-oxido-3-[(2-oxido-5-sulfamoylphenyl)diazenyl]naphthalene-2-sulfonate;chromium(3+)

CAS 346693-15-0

Chromate(4-), [6-amino-3-[2-[5-(aminosulfonyl)-2-(hydroxy-κO)phenyl]diazenyl-κN1]-4-(hydroxy-κO)-2-naphthalenesulfonato(3-)][6-amino-4-(hydroxy-κO)-3-[2-[2-(hydroxy-κO)-5-nitro-3-sulfophenyl]diazenyl-κN1]-2-naphthalenesulfonato(4-)]-, sodium (1:4)

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

Molecular structure of 346693-15-0
4 Na⁺ · 1 Cr²⁺
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

CAS346693-15-0
PubChem CIDNot recorded
DTXSIDDTXSID601014903
FormulaC32H19CrN8Na4O17S4
Mol. Weight1059.74 g/mol
SMILES[Na+].[Na+].[Na+].[Na+].[Cr++].NC1=CC2=C([O-])C(\N=N\C3=C([O-])C=CC(=C3)S(N)(=O)=O)=C(C=C2C=C1)S([O-])(=O)=O.NC1=CC2=C([O-])C(\N=N\C3=CC(=CC(=C3[O-])S([O-])(=O)=O)[N+]([O-])=O)=C(C=C2C=C1)S([O-])(=O)=O

Data Sources

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Brief citations

Tetrasodium;6-amino-3-[(5-nitro-2-oxido-3-sulfonatophenyl)diazenyl]-4-oxidonaphthalene-2-sulfonate;6-amino-4-oxido-3-[(2-oxido-5-sulfamoylphenyl)diazenyl]naphthalene-2-sulfonate;chromium(3+) (CAS 346693-15-0) https://chemicalindependence.com/chemical/346693-15-0/ EPA TSCA Inventory: CAS 346693-15-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory