Flag of the United StatesAmerican Chemical Independence

Chromate(1-), [4-(hydroxy-κO)-5-[2-[2-(hydroxy-κO)-1-naphthalenyl]diazenyl-κN1]-1,3-benzenedisulfonato(4-)]-, sodium (1:1)

CAS 70833-33-9

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

Molecular structure of 70833-33-9
1 Cr³⁺ · 1 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

CAS70833-33-9
PubChem CIDNot recorded
DTXSIDDTXSID501015122
FormulaC16H8CrN2NaO8S2
Mol. Weight495.35 g/mol
SMILES[Na+].[Cr+3].[O-]C1=CC=C2C=CC=CC2=C1\N=N\C1=C([O-])C(=CC(=C1)S([O-])(=O)=O)S([O-])(=O)=O

Data Sources

← Back to Dashboard

Brief citations

Chromate(1-), [4-(hydroxy-κO)-5-[2-[2-(hydroxy-κO)-1-naphthalenyl]diazenyl-κN1]-1,3-benzenedisulfonato(4-)]-, sodium (1:1) (CAS 70833-33-9) https://chemicalindependence.com/chemical/70833-33-9/ EPA TSCA Inventory: CAS 70833-33-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory