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Ponceau 3R

CAS 3564-09-8

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

Molecular structure of 3564-09-8
2 Na⁺
US productionNot reported
Top sourceNo public record

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

No public supply or use records

Neither EPA production reports, Census trade data nor FDA listings cover this chemical, so no one publishes where the US gets it or what it goes into. Why supply is unknown

Chemical Identity

CAS3564-09-8
PubChem CIDNot recorded
DTXSIDDTXSID7021231
FormulaC19H16N2Na2O7S2
Mol. Weight494.44 g/mol
SMILES[Na+].[Na+].CC1=CC(C)=C(C=C1C)\N=N\C1=C(O)C(=CC2=C1C=CC(=C2)S([O-])(=O)=O)S([O-])(=O)=O

Data Sources

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Brief citations

Ponceau 3R (CAS 3564-09-8) https://chemicalindependence.com/chemical/3564-09-8/ EPA CompTox (DSSTox): 3564-09-8. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7021231