Diisooctyl phenyl phosphite
CAS 26544-22-9
Phosphorous acid, diisooctyl phenyl ester
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
$0.28/gAaron Chemicals LLC
CountryHong Kong
Pack$139.00 / 500 g
Purity95%
Vendors9 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
8 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 |
|---|---|---|---|---|
| Angene Chemical | China → Hong Kong | $0.30 | 500 g | 95% |
| AstaTech (2 weeks) | United States | $0.43 | 500 g | 95% |
| Combi-Blocks (back-ordered) | United States | $0.50 | 100 g | 95% |
| AK Scientific, Inc. | United States | $1.08 | 25 g | 98% |
| AA BLOCKS | United States | $1.20 | 25 g | 98% |
| A2B Chem LLC | United States | $1.20 | 25 g | 98% |
| Angene International Limited | United States | $3.08 | 25 g | 98% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 95% |
Chemical Identity
CAS26544-22-9
PubChem CIDNot recorded
DTXSIDDTXSID4067222
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
Diisooctyl phenyl phosphite (CAS 26544-22-9) https://chemicalindependence.com/chemical/26544-22-9/ EPA TSCA Inventory: CAS 26544-22-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory