OO-tert-butyl O-(2-ethylhexyl) peroxycarbonate

CAS 34443-12-4

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, 2024$208M

Top sourceChina 28%

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 292090 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 292090, which covers 98 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CN 28%ChinaKR 17%South KoreaIT 13%ItalyIN 10%IndiaDE 9%Germany

Poland
Switzerland
Ireland
Canada
Lithuania
Netherlands
Brazil
Malaysia
Hungary
Czech Republic
Saudi Arabia
Slovakia
Ukraine
Turkey

EPA-registered manufacturers (2)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Arkema

Pergan Marshall

EPA-registered importers (2)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

United Initiators Gmbh · DE Germany

United Initiators

Why It Matters

Sectors

Plastics & Rubber

Downstream UsesNot recorded

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 2 sectors as 2 functional roles.

•Plasticizer in Plastics Product ManufacturingProcessing as a reactant
•Polymerization promoter in Plastics Material and Resin Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS34443-12-4

PubChem CID61931

DTXSIDDTXSID2044921

FormulaC13H26O4

Mol. Weight246.34 g/mol

SMILESCCCCC(CC)COC(=O)OOC(C)(C)C

Data Sources

EPA CompTox (DSSTox) · DTXSID2044921Retrieved 2026-04-06
PubChem · compound 61931Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

← Back to Dashboard ← Back to Plastics & Rubber

Brief citations

OO-tert-butyl O-(2-ethylhexyl) peroxycarbonate (CAS 34443-12-4) https://chemicalindependence.com/chemical/34443-12-4/ EPA CompTox (DSSTox): DTXSID2044921. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2044921 PubChem: 61931. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/61931 EPA Chemical Data Reporting: 34443-12-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 34443-12-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292090 for CAS 34443-12-4. Reporting year: 2024. https://usatrade.census.gov/