Selenium oxide
CAS 12640-89-0
EPA and Census publish no US supply data for this chemical.
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 unknownWhere 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.
Vendor Pricing
$0.25/gA2B Chem LLC
CountryUnited States
Pack$124.00 / 500 g
Purity99.9%
Vendors8 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
7 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| AA BLOCKS | United States | $0.32 | 500 g | 99.9% |
| AK Scientific Specialized | United States | $0.37 | 500 g | 95% |
| AK Scientific, Inc. | United States | $0.52 | 500 g | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $0.82 | 500 g | 99.8% |
| Sigma-Aldrich | Germany | $0.82 | 500 g | 99.8% |
| Fluorochem UK | United Kingdom | $1.30 | 100 g | — |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 90% |
Chemical Identity
CAS12640-89-0
PubChem CIDNot recorded
DTXSIDDTXSID801014454
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
Selenium oxide (CAS 12640-89-0) https://chemicalindependence.com/chemical/12640-89-0/ EPA TSCA Inventory: CAS 12640-89-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory