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Isodecyl phosphite

CAS 25448-25-3

U.S. production volumes are classified as confidential business information.

Molecular structure of 25448-25-3
US productionCBI
Top sourceNo public record

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023.

Where It Comes From

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production Confidential · Imports Confidential
EPA-registered manufacturers (2)
Dover Chemical
Proviron
Domestic parents -- activity not disclosed (2)
Polymer Additves
Si Group
EPA-registered importers (2)
Galata Chemicals
Soyventis North America

Why It Matters

Sectors
Plastics & RubberCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 5 sectors as 8 functional roles.

  • •Heat stabilizer in Plastics Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Plasticizer in Plastics Product Manufacturing (100%)Processing—incorporation into article
  • •Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Antioxidant in Plastics Material and Resin Manufacturing (90%)Processing—incorporation into formulation, mixture, or reaction product
  • •Antioxidant in Synthetic Rubber Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
  • •UV stabilizer in Plastics Material and Resin Manufacturing (90%)Processing—incorporation into formulation, mixture, or reaction product
  • •UV stabilizer in Synthetic Rubber Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
  • •Chemical reaction regulator in Plastics Material and Resin Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
  • •Chemical reaction regulator in Synthetic Rubber Manufacturing (90%)Processing—incorporation into formulation, mixture, or reaction product
  • •Stabilizing agent in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Filler in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.25/gCombi-Blocks, Inc.
CountryUnited States
Pack$250.00 / 1 kg
Purity95%
Vendors3 available

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

2 more vendors
VendorCountry$/gPackPurity
A2B Chem LLCUnited States$0.271 kg95%
AA BLOCKSUnited States$0.281 kg95%

Chemical Identity

CAS25448-25-3
PubChem CID117488
DTXSIDDTXSID3027873
FormulaC30H63O3P
Mol. Weight502.8 g/mol
SMILESCC(C)CCCCCCCOP(OCCCCCCCC(C)C)OCCCCCCCC(C)C

Data Sources

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Brief citations

Isodecyl phosphite (CAS 25448-25-3) https://chemicalindependence.com/chemical/25448-25-3/ EPA CompTox (DSSTox): DTXSID3027873. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3027873 PubChem: 117488. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/117488 EPA Chemical Data Reporting: 25448-25-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 25448-25-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting