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Trimethylolpropane ethoxylate triacrylate

CAS 28961-43-5

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

Molecular structure of 28961-43-5
US productionCBI
Import value, 2024$31M
Top sourceBrazil 52%

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. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 291611 · basket

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 291611, which covers 10 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
BR 52%BrazilBE 22%BelgiumKR 10%South KoreaDE 7%GermanyCN 5%China

Why It Matters

Sectors
Paper & Printing
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

  • •Monomers in Printing and Related Support ActivitiesProcessing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.39/gCombi-Blocks, Inc.
CountryUnited States
Pack$390.00 / 1 kg
Purity95%
Vendors2 available

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

1 more vendor
VendorCountry$/gPackPurity
AK Scientific, Inc.United States$5.805 g—

Chemical Identity

CAS28961-43-5
PubChem CID115157
DTXSIDDTXSID3027950
FormulaC21H32O9
Mol. Weight428.5 g/mol
SMILESCCC(COCCOC(=O)C=C)(COCCOC(=O)C=C)COCCOC(=O)C=C

Data Sources

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Brief citations

Trimethylolpropane ethoxylate triacrylate (CAS 28961-43-5) https://chemicalindependence.com/chemical/28961-43-5/ EPA CompTox (DSSTox): DTXSID3027950. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3027950 PubChem: 115157. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/115157 EPA Chemical Data Reporting: 28961-43-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 28961-43-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291611 for CAS 28961-43-5. Reporting year: 2024. https://usatrade.census.gov/