tert-Butyl hydroperoxide

Drug ingredient

CAS 75-91-2

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$56M

Top sourceChina 47%

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 290960 · basket

EPA reports by year

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

These shares come from HS customs code 290960, which covers 29 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 47%ChinaDE 31%GermanyKR 11%South KoreaBE 8%BelgiumTR 1%Turkey

Malaysia
India
Mexico
Lithuania
Japan
Canada
Italy

EPA-registered manufacturers (4)

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

Lyondell Chemical

Pergan Marshall

United Initiators

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

Arkema

1 FDA-registered drug labeler

Piramal Pharma Solutions Inc.

Why It Matters

Sectors

HealthAgricultureEnergyElectronicsConstructionPlastics & RubberPaints & CoatingsCore Chemicals

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 10 sectors as 10 functional roles.

•Chemical reaction regulator in Plastics Material and Resin ManufacturingProcessing as a reactant
•Chemical reaction regulator in Adhesive ManufacturingProcessing as a reactant
•Hardener in Plastics Product ManufacturingProcessing as a reactant
•Hardener in Plastics Material and Resin ManufacturingProcessing as a reactant
•Solvent in Plastics Material and Resin ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Intermediate in Agriculture, Forestry, Fishing and Hunting (100%)Processing as a reactant
•CBI in CBICBI
•Oxidizing agent in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
•Intermediate in Paint and Coating Manufacturing (44%)Processing as a reactant
•Intermediate in All Other Chemical Product and Preparation Manufacturing (46%)Processing—incorporation into formulation, mixture, or reaction product
•Plating agent in Electrical Equipment, Appliance, and Component Manufacturing (1%)Processing as a reactant
•Plasticizer in Plastics Product Manufacturing (5%)Processing—incorporation into formulation, mixture, or reaction product
•Fuel agents in Oil and Gas Drilling, Extraction, and Support activities (1%)Processing—incorporation into formulation, mixture, or reaction product
•Catalyst in Oil and Gas Drilling, Extraction, and Support activities (1%)Processing—incorporation into formulation, mixture, or reaction product
•Catalyst in All Other Chemical Product and Preparation Manufacturing (46%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.24/gAA BLOCKS

CountryUnited States

Pack$24.00 / 100 g

PurityNot recorded

Vendors5 available

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

4 more vendors

Vendor	Country	$/g	Pack	Purity
AK Scientific, Inc.	United States	$0.67	100 g	70%
MedKoo Biosciences, Inc	United States	$2.10	100 g	98%
Asinex	Netherlands	$6461.40	100 mg	90%
TimTec, LLC (back-ordered)	United States	$32000.00	15 mg	94%

Chemical Identity

CAS75-91-2

PubChem CID6410

DTXSIDDTXSID9024693

FormulaC4H10O2

Mol. Weight90.12 g/mol

SMILESCC(C)(C)OO

Data Sources

EPA CompTox (DSSTox) · DTXSID9024693Retrieved 2026-04-06
PubChem · compound 6410Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

tert-Butyl hydroperoxide (CAS 75-91-2) https://chemicalindependence.com/chemical/75-91-2/ EPA CompTox (DSSTox): DTXSID9024693. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9024693 PubChem: 6410. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6410 EPA Chemical Data Reporting: 75-91-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting FDA National Drug Code directory: CAS 75-91-2. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 290960 for CAS 75-91-2. Reporting year: 2024. https://usatrade.census.gov/