Bis(2,4-dichlorophenyl)peroxyanhydride

Drug ingredient

CAS 133-14-2

This drug ingredient has classified U.S. production volumes. EPA withholds the number 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$84M

Top sourceChina 63%

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 291639 · basket

EPA reports by year

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

These shares come from HS customs code 291639, which covers 229 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 63%ChinaIT 19%ItalyIN 8%IndiaDE 4%GermanyCH 3%Switzerland

Spain
Ukraine
Singapore
Turkey
Norway
Czech Republic
Taiwan
South Korea
Japan
Mexico
New Zealand
Canada
Sweden
Hong Kong
Latvia

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Pergan Marshall

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.

Harwick Standard Distribution

Why It Matters

Sectors

Core ChemicalsHealthPlastics & Rubber

Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

•Simple Chlorinated Combination 9315

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 4 sectors as 3 functional roles.

•Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant
•Hardener in Plastics Product ManufacturingProcessing as a reactant
•Hardener in Rubber Product ManufacturingProcessing as a reactant
•CBI in CBICBI

Chemical Identity

CAS133-14-2

PubChem CID61078

DTXSIDDTXSID4044539

FormulaC14H6Cl4O4

Mol. Weight380 g/mol

SMILESC1=CC(=C(C=C1Cl)Cl)C(=O)OOC(=O)C2=C(C=C(C=C2)Cl)Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID4044539Retrieved 2026-04-06
PubChem · compound 61078Retrieved 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

Bis(2,4-dichlorophenyl)peroxyanhydride (CAS 133-14-2) https://chemicalindependence.com/chemical/133-14-2/ EPA CompTox (DSSTox): DTXSID4044539. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4044539 PubChem: 61078. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/61078 EPA Chemical Data Reporting: 133-14-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 133-14-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291639 for CAS 133-14-2. Reporting year: 2024. https://usatrade.census.gov/