tert-Amyl peroxy-2-ethylhexanoate

CAS 686-31-7

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$384M

Top sourceMalaysia 21%

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 291590 · basket

EPA reports by year

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

These shares come from HS customs code 291590, which covers 588 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).

MY 21%MalaysiaDE 13%GermanyNL 13%NetherlandsMX 10%MexicoIT 8%Italy

Singapore
Austria
United Kingdom
Philippines
Canada
Hungary
Turkey
Ukraine
Israel
Denmark
Czech Republic
Slovakia
Norway
Poland
Hong Kong
South Africa
Russia

EPA-registered manufacturers (3)

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

Pergan Marshall

United Initiators

EPA-registered importers (1)

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

Arkema

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 3 functional roles.

•Plasticizer in Plastics Product Manufacturing (100%)Processing as a reactant
•CBI in CBICBI
•Polymerization promoter in Plastics Product Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS686-31-7

PubChem CID102465

DTXSIDDTXSID60862368

FormulaC13H26O3

Mol. Weight230.34 g/mol

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

Data Sources

EPA CompTox (DSSTox) · DTXSID60862368Retrieved 2026-04-06
PubChem · compound 102465Retrieved 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

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Brief citations

tert-Amyl peroxy-2-ethylhexanoate (CAS 686-31-7) https://chemicalindependence.com/chemical/686-31-7/ EPA CompTox (DSSTox): DTXSID60862368. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID60862368 PubChem: 102465. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/102465 EPA Chemical Data Reporting: 686-31-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 686-31-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291590 for CAS 686-31-7. Reporting year: 2024. https://usatrade.census.gov/