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Tetrabismuth trisilicate

CAS 15983-20-7

Silicic acid (H4SiO4), bismuth(3+) salt (3:4)

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

Molecular structure of 15983-20-7
4 Bi³⁺
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

CAS15983-20-7
PubChem CIDNot recorded
DTXSIDDTXSID5065986
FormulaBi4O12Si3
Mol. Weight1112.165 g/mol
SMILES[Bi+3].[Bi+3].[Bi+3].[Bi+3].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-]

Data Sources

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Brief citations

Tetrabismuth trisilicate (CAS 15983-20-7) https://chemicalindependence.com/chemical/15983-20-7/ EPA TSCA Inventory: CAS 15983-20-7. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory