Antimony oxide (Sb2O4)

CAS 1332-81-6

Molecular structure of 1332-81-6
US productionNot reported
Import value, 2024$219M
Top sourceChina 59%

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 282580 · narrow

These shares come from HS customs code 282580, which covers 3 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 59%ChinaBE 21%BelgiumBO 8%BoliviaIT 7%ItalyMY 2%Malaysia

Why It Matters

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

Vendor Pricing

$11.08/gAA BLOCKS
CountryUnited States
Pack$277.00 / 25 g
Purity99.99%
Vendors1 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

Chemical Identity

CAS1332-81-6
PubChem CIDNot recorded
DTXSIDDTXSID9061677
FormulaO4Sb2
Mol. Weight307.516 g/mol
SMILESO=[Sb]O[Sb](=O)=O

Data Sources

Brief citations

Antimony oxide (Sb2O4) (CAS 1332-81-6) https://chemicalindependence.com/chemical/1332-81-6/ EPA TSCA Inventory: CAS 1332-81-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 282580 for CAS 1332-81-6. Reporting year: 2024. https://usatrade.census.gov/