Direct Violet 47

CAS 13011-70-6

Cuprate(4-), [μ-[[5,5'-[carbonylbis[imino[2-(hydroxy-κO)-5-sulfo-4,1-phenylene]-2,1-diazenediyl-κN1]]bis[6-(hydroxy-κO)-2-naphthalenesulfonato]](8-)]]di-, ammonium (1:4)

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

Molecular structure of 13011-70-6
4 NH₄⁺ · 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

CAS13011-70-6
PubChem CIDNot recorded
DTXSIDDTXSID801033208
FormulaC33H32Cu2N10O17S4
Mol. Weight1096 g/mol
SMILES[NH4+].[NH4+].[NH4+].[NH4+].[Cu++].[Cu++].[O-]C1=C(C=C(C(NC(=O)NC2=CC([O-])=C(C=C2S([O-])(=O)=O)N=NC2=C([O-])C=CC3=C2C=CC(=C3)S([O-])(=O)=O)=C1)S([O-])(=O)=O)N=NC1=C([O-])C=CC2=C1C=CC(=C2)S([O-])(=O)=O

Data Sources

Brief citations

Direct Violet 47 (CAS 13011-70-6) https://chemicalindependence.com/chemical/13011-70-6/ EPA TSCA Inventory: CAS 13011-70-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory