4,4'-Methylenebis(2,6-di-t-butylphenol)

CAS 118-82-1

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$72M

Top sourceIndia 30%

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 290729 · basket

EPA reports by year

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

These shares come from HS customs code 290729, which covers 82 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).

IN 30%IndiaDE 19%GermanyCN 16%ChinaJP 11%JapanIT 7%Italy

Austria
United Kingdom
Denmark
Canada
Colombia
New Zealand
Poland
Netherlands
Ukraine

Domestic parents -- activity not disclosed (2)

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

Pmc Global

Si Group

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.

Quaker Houghton

Why It Matters

Sectors

Energy

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 1 sector as 3 functional roles.

•Antioxidant in Petroleum Lubricating Oil and Grease Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Lubricating agent in Petroleum Lubricating Oil and Grease Manufacturing (30%)Processing—incorporation into formulation, mixture, or reaction product
•Anti-slip agent in Petroleum Lubricating Oil and Grease Manufacturing (70%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.05/gAaron Chemicals LLC

CountryHong Kong

Pack$23.00 / 500 g

Purity98%

Vendors21 available

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

20 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.05	500 g	98%
A2B Chem LLC	United States	$0.06	500 g	98%
BLD Pharmatech Ltd.	China	$0.07	500 g	98%
AA BLOCKS	United States	$0.07	500 g	98%
BLD Pharmatech GmbH	Germany	$0.18	100 g	98%
AK Scientific Specialized	United States	$0.22	500 g	98%
BLD Pharmatech Co., Limited	United States	$0.23	100 g	98%
Ambeed, Inc.	United States	$0.23	100 g	98%
Combi-Blocks, Inc.	United States	$0.25	1 kg	98%
AK Scientific, Inc.	United States	$0.30	500 g	99%
MedChemExpress MCE	Sweden	$0.33	500 g	99.83%
Angene International Limited	United States	$0.42	500 g	98%
ALFA AESAR	Germany	$0.44	100 g	98%
AstaTech (2 weeks)	United States	$3.68	25 g	95%
MedKoo Biosciences, Inc	United States	$10.00	25 g	98%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
Vitas M Chemical Limited	Hong Kong	$3170.00	100 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	98%
Interbioscreen	Hong Kong	$6072.00	100 mg	95%
TimTec, LLC	United States	$13333.33	30 mg	90%

Chemical Identity

CAS118-82-1

PubChem CID8372

DTXSIDDTXSID7022411

FormulaC29H44O2

Mol. Weight424.7 g/mol

SMILESCC(C)(C)C1=CC(=CC(=C1O)C(C)(C)C)CC2=CC(=C(C(=C2)C(C)(C)C)O)C(C)(C)C

Data Sources

EPA CompTox (DSSTox) · DTXSID7022411Retrieved 2026-04-06
PubChem · compound 8372Retrieved 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

4,4'-Methylenebis(2,6-di-t-butylphenol) (CAS 118-82-1) https://chemicalindependence.com/chemical/118-82-1/ EPA CompTox (DSSTox): DTXSID7022411. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7022411 PubChem: 8372. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/8372 EPA Chemical Data Reporting: 118-82-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 118-82-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290729 for CAS 118-82-1. Reporting year: 2024. https://usatrade.census.gov/