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Hydrogen bis(1-((2-hydroxy-4-nitrophenyl)azo)-2-naphtholato(2-))chromate(1-)

CAS 72797-03-6

Chromate(1-), bis[1-[2-[2-(hydroxy-κO)-4-nitrophenyl]diazenyl-κN1]-2-naphthalenolato(2-)-κO]-, hydrogen (1:1)

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

Molecular structure of 72797-03-6
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

CAS72797-03-6
PubChem CIDNot recorded
DTXSIDDTXSID90904861
FormulaC32H19CrN6O8
Mol. Weight667.534 g/mol
SMILES[H+].[O-][N+](=O)C1=CC=C2\N=N\C3=C4C=CC=CC4=CC=C3O[Cr-]3(OC4=CC=C5C=CC=CC5=C4\N=N\C4=CC=C(C=C4O3)[N+]([O-])=O)OC2=C1

Data Sources

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Brief citations

Hydrogen bis(1-((2-hydroxy-4-nitrophenyl)azo)-2-naphtholato(2-))chromate(1-) (CAS 72797-03-6) https://chemicalindependence.com/chemical/72797-03-6/ EPA TSCA Inventory: CAS 72797-03-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory