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C.I. Pigment Red 57

CAS 5858-81-1

EPA’s 2019 records show zero U.S. production of this chemical.

Molecular structure of 5858-81-1
2 Na⁺
US productionZero
Top sourceNo public record

EPA lists this chemical for 2019 but publishes zero or no volume for both production and imports.

Why supply is unknown

Production is reported production, not a complete census of factories. Production reporting year: 2019.

Where It Comes From

EPA reports by year
2019
US production Zero · Imports Zero
Domestic parents -- activity not disclosed (1)
Kemira Chemicals

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS5858-81-1
PubChem CID135487652
DTXSIDDTXSID6064038
FormulaC18H12N2Na2O6S
Mol. Weight430.3 g/mol
SMILESCC1=CC(=C(C=C1)N=NC2=C(C(=CC3=CC=CC=C32)C(=O)O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

Data Sources

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Brief citations

C.I. Pigment Red 57 (CAS 5858-81-1) https://chemicalindependence.com/chemical/5858-81-1/ EPA CompTox (DSSTox): DTXSID6064038. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6064038 PubChem: 135487652. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/135487652 EPA Chemical Data Reporting: 5858-81-1. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting