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Benzenesulfonic acid, 4-chloro-2-[2-[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]diazenyl]-5-methyl-, ammonium calcium salt (2:2:1)

CAS 320748-53-6

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

Molecular structure of 320748-53-6
2 NH₄⁺ · 1 Ca²⁺
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

CAS320748-53-6
PubChem CIDNot recorded
DTXSIDDTXSID90891126
FormulaC34H34CaCl2N10O14S4
Mol. Weight1045.92 g/mol
SMILES[NH4+].[NH4+].[Ca++].CC1=NN(C(=O)C1N=NC1=C(C=C(C)C(Cl)=C1)S([O-])(=O)=O)C1=CC(=CC=C1)S([O-])(=O)=O.CC1=NN(C(=O)C1N=NC1=C(C=C(C)C(Cl)=C1)S([O-])(=O)=O)C1=CC(=CC=C1)S([O-])(=O)=O

Data Sources

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Brief citations

Benzenesulfonic acid, 4-chloro-2-[2-[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]diazenyl]-5-methyl-, ammonium calcium salt (2:2:1) (CAS 320748-53-6) https://chemicalindependence.com/chemical/320748-53-6/ EPA TSCA Inventory: CAS 320748-53-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory