C.I. Acid Black 84

CAS 6408-22-6

Chromate(7-), bis[4-(hydroxy-κO)-3-[2-[2-(hydroxy-κO)-5-nitro-3-sulfophenyl]diazenyl-κN1]-6-[(sulfomethyl)amino]-2-naphthalenesulfonato(5-)]-, sodium hydrogen (1:6:1)

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

Molecular structure of 6408-22-6
6 Na⁺ · 1 Cr³⁺ · 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

CAS6408-22-6
PubChem CIDNot recorded
DTXSIDDTXSID50862337
FormulaC34H19CrN8Na6O26S6
Mol. Weight1337.85 g/mol
SMILES[H+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Cr+3].[O-]C1=C(C=C(C=C1S([O-])(=O)=O)[N+]([O-])=O)N=NC1=C(C=C2C=CC(NCS([O-])(=O)=O)=CC2=C1[O-])S([O-])(=O)=O.[O-]C1=C(C=C(C=C1S([O-])(=O)=O)[N+]([O-])=O)N=NC1=C(C=C2C=CC(NCS([O-])(=O)=O)=CC2=C1[O-])S([O-])(=O)=O

Data Sources

Brief citations

C.I. Acid Black 84 (CAS 6408-22-6) https://chemicalindependence.com/chemical/6408-22-6/ EPA TSCA Inventory: CAS 6408-22-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory