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Sulfuric acid, palladium(2+) salt (1:1)

CAS 13566-03-5

Molecular structure of 13566-03-5
1 Pd²⁺
US productionNot reported
Import value, 2024$111M
Top sourceJapan 43%

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

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 284390 · basket

These shares come from HS customs code 284390, which covers 65 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
JP 43%JapanZA 22%South AfricaDE 12%GermanyIN 10%IndiaAR 6%Argentina

Why It Matters

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

Chemical Identity

CAS13566-03-5
PubChem CIDNot recorded
DTXSIDDTXSID30884517
FormulaO4PdS
Mol. Weight202.48 g/mol
SMILES[Pd++].[O-]S([O-])(=O)=O

Data Sources

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Brief citations

Sulfuric acid, palladium(2+) salt (1:1) (CAS 13566-03-5) https://chemicalindependence.com/chemical/13566-03-5/ EPA TSCA Inventory: CAS 13566-03-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 284390 for CAS 13566-03-5. Reporting year: 2024. https://usatrade.census.gov/