Tris(2,4-di-tert-butylphenyl) phosphite
U.S. production volumes are classified as confidential business information.
US ProductionCBI
Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.
Import Value$23M
Top SourceSingapore 52%
The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.
Where It Comes From
Customs basis: HS 292029 · basket
These shares come from HS customs code 292029, which covers 17 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.
Source Countries
Country of origin for US imports, from Census customs data (2023).
SG 52%SingaporeTW 12%TaiwanIT 9%ItalyGB 7%United KingdomES 7%Spain
- Brunei
- Poland
EPA-registered manufacturers (5)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Basf Se · DE Germany
Basf
Icc Industries
Sc Johnson & Son
Si Group Usa (Usaa)
EPA-registered importers (27)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Basf Se · DE Germany
Ineos · IM Isle of Man
Lg Chem · KR South Korea
Mubadala Investment Co Pjsc (Mubadala) · AE United Arab Emirates
Sasol · ZA South Africa
Show all 27
Songwon Industrial · KR South Korea
Basf
Cabot
Dexco Polymers
ExxonMobil
Formosa Plastics
Icc Industries
Ineos Styrolution America
Kraton
Lg Chem America
Lintech International
Lyondell Chemical
Mayzo
Mitsubishi Corporation (Americas)
Nc Holdings Usa
Sasol Chemicals (Usa)
Si Group
Si Group Usa (Usaa)
Solvay
Songwon International Americas
The Dow Chemical
Trinseo
Why It Matters
Sectors
EnergyConstructionMetals & MiningPlastics & RubberConsumer ProductsPaints & CoatingsCore Chemicals
Downstream UsesNo data available
FDA Shortage Status
Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."
No FDA shortage records
Industrial Uses
Used in 12 sectors as 11 functional roles.
- •Stabilizing agent in Wholesale and Retail Trade (0%)Processing—repackaging
- •Reducing agent in Plastics Product ManufacturingProcessing—incorporation into article
- •Reducing agent in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Reducing agent in Adhesive ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Reducing agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Antioxidant in Plastics Material and Resin Manufacturing (0%)Processing—incorporation into article
- •Oxidizing/reducing agents in Plastics Product ManufacturingProcessing—incorporation into article
- •Antioxidant in Paint and Coating Manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product
- •Oxidizing/reducing agents in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Oxidizing/reducing agents in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Finishing agents in Plastics Product Manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product
- •UV stabilizer in Plastics Product Manufacturing (100%)Processing—incorporation into article
- •Pigment in Custom Compounding of Purchased Resins (100%)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
- •Heat stabilizer in Plastics Product Manufacturing (100%)Processing—incorporation into article
- •Heat stabilizer in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •pH regulating agent in Petroleum Lubricating Oil and Grease Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Flame retardant in Plastics Product Manufacturing (100%)Processing—incorporation into article
- •Antioxidant in Furniture and Related Product Manufacturing (100%)Processing—incorporation into article
- •Oxidizing/reducing agents in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Antioxidant in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Antioxidant in Plastics Product Manufacturing (95%)Processing—incorporation into article
- •Antioxidant in Custom Compounding of Purchased Resins (3%)Processing—incorporation into formulation, mixture, or reaction product
- •Antioxidant in Other (9%)Processing—repackaging
- •Fragrance in Wholesale and Retail Trade (100%)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
- •Antioxidant in Synthetic Rubber Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
Vendor Pricing
$0.02/gAngene Chemical
CountryChina (registered: Hong Kong)
Pack$12.00 / 500 g
Purity98%
Vendors17 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
16 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 |
|---|---|---|---|---|
| A2B Chem LLC | United States | $0.04 | 500 g | 98% |
| BLD Pharmatech Ltd. | China | $0.04 | 1 kg | 97% |
| AA BLOCKS | United States | $0.05 | 500 g | 98% |
| BLD Pharmatech GmbH | Germany | $0.06 | 500 g | 97% |
| AstaTech, Inc | United States | $0.07 | 500 g | 95% |
| BLD Pharmatech Co., Limited | United States | $0.11 | 1 kg | 97% |
| Ambeed, Inc. | United States | $0.11 | 1 kg | 97% |
| AK Scientific Specialized | United States | $0.21 | 500 g | 95% |
| Angene International Limited | United States | $0.24 | 500 g | 98% |
| Combi-Blocks, Inc. | United States | $0.25 | 1 kg | 97% |
| AK Scientific, Inc. | United States | $0.29 | 500 g | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $0.44 | 500 g | — |
| Sigma-Aldrich | Germany | $0.44 | 500 g | — |
| ChemDiv, Inc. | United States | $4070.00 | 100 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
| TimTec, LLC (back-ordered) | United States | $32000.00 | 15 mg | 94% |
Chemical Identity
CAS31570-04-4
PubChem CID91601
DTXSIDDTXSID2027969
FormulaC42H63O3P
Mol. Weight646.9 g/mol
SMILESCC(C)(C)C1=CC(=C(C=C1)OP(OC2=C(C=C(C=C2)C(C)(C)C)C(C)(C)C)OC3=C(C=C(C=C3)C(C)(C)C)C(C)(C)C)C(C)(C)C
Data Sources
DTXSID20279692026-04-06
https://doi.org/10.23645/epacomptox.5588566
Archive: data/sources/comptox/dsstox_identifiers.csv
916012026-04-06
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/91601/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON
Archive: data/sources/pubchem_properties/91601.json
31570-04-42026-04-24
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr.csv
CAS 31570-04-42026-04-25
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr_industrial.csv