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Iron, [4-[4,5-dihydro-4-[2-[2-(hydroxy-κO)-5-nitrophenyl]diazenyl-κN1]-3-methyl-5-(oxo-κO)-1H-pyrazol-1-yl]benzenesulfonato(3-)]-

CAS 72479-34-6

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

Molecular structure of 72479-34-6
1 Fe³⁺
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

CAS72479-34-6
PubChem CIDNot recorded
DTXSIDDTXSID901015279
FormulaC16H10FeN5O7S
Mol. Weight472.19 g/mol
SMILES[Fe+3].CC1=NN(C(=O)[C-]1\N=N\C1=CC(=CC=C1[O-])[N+]([O-])=O)C1=CC=C(C=C1)S([O-])(=O)=O

Data Sources

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Brief citations

Iron, [4-[4,5-dihydro-4-[2-[2-(hydroxy-κO)-5-nitrophenyl]diazenyl-κN1]-3-methyl-5-(oxo-κO)-1H-pyrazol-1-yl]benzenesulfonato(3-)]- (CAS 72479-34-6) https://chemicalindependence.com/chemical/72479-34-6/ EPA TSCA Inventory: CAS 72479-34-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory