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Cerium(3+) hydrogen sulfate sulfate--ammonia (1/1/1/1)

CAS 13840-04-5

Sulfuric acid, ammonium cerium salt (1:?:?)

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

Molecular structure of 13840-04-5
1 Ce³⁺ · 1 NH₃
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

CAS13840-04-5
PubChem CIDNot recorded
DTXSIDDTXSID10930102
FormulaCeH4NO8S2
Mol. Weight350.27 g/mol
SMILESN.[Ce+3].OS([O-])(=O)=O.[O-]S([O-])(=O)=O

Data Sources

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Brief citations

Cerium(3+) hydrogen sulfate sulfate--ammonia (1/1/1/1) (CAS 13840-04-5) https://chemicalindependence.com/chemical/13840-04-5/ EPA TSCA Inventory: CAS 13840-04-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory