Diphosphoric acid, aluminum salt (3:4)

CAS 14696-66-3

Molecular structure of 14696-66-3 — 4 Al³⁺

US productionNot reported

Import value, 2024$95M

Top sourceCanada 30%

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 283539 · basket

These shares come from HS customs code 283539, which covers 21 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CA 30%CanadaDE 19%GermanyMY 17%MalaysiaCN 13%ChinaIT 9%Italy

Spain
Belgium
Japan
Poland
Taiwan
Switzerland
South Korea
Singapore
Netherlands
Denmark
United Kingdom
Slovakia

Why It Matters

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

Chemical Identity

CAS14696-66-3

PubChem CIDNot recorded

DTXSIDDTXSID80889638

FormulaAl4O21P6

Mol. Weight629.748 g/mol

SMILES[Al+3].[Al+3].[Al+3].[Al+3].[O-]P([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])([O-])=O

Data Sources

EPA TSCA InventoryRetrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Diphosphoric acid, aluminum salt (3:4) (CAS 14696-66-3) https://chemicalindependence.com/chemical/14696-66-3/ EPA TSCA Inventory: CAS 14696-66-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 283539 for CAS 14696-66-3. Reporting year: 2024. https://usatrade.census.gov/