4-(1,1-Dimethylethyl)phenol

CAS 98-54-4

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$33M

Top sourceGermany 29%

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 290719 · basket

EPA reports by year

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

These shares come from HS customs code 290719, which covers 116 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).

DE 29%GermanyIN 26%IndiaCN 19%ChinaIT 9%ItalyCH 5%Switzerland

Mexico
Poland
South Korea
Canada
Russia
Ukraine
Hong Kong
Malaysia
United Kingdom

EPA-registered manufacturers (1)

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

Dynachem

Domestic parents -- activity not disclosed (5)

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

Icl Specialty Products North America

Olin

Si Group

Solvay

Sumitomo Bakelite North America Holding

EPA-registered importers (8)

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

Sumitomo Bakelite · JP Japan

Syensqo Sa · BE Belgium

Ardex Americas

Bakelite Us Hold

Icc Industries

Show all 8

Palmer Holland

Soyventis North America

Wego Chemical Group

Why It Matters

Sectors

EnergyConstructionPlastics & 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 6 sectors as 8 functional roles.

•Monomers in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
•Binder in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
•Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant
•Intermediate in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
•Monomers in All Other Basic Organic Chemical Manufacturing (50%)Processing as a reactant
•Processing aids, specific to petroleum production in Oil and Gas Drilling, Extraction, and Support activities (20%)Processing as a reactant
•Surfactant (surface active agent) in Oil and Gas Drilling, Extraction, and Support activities (100%)Processing as a reactant
•Binder in Paint and Coating Manufacturing (100%)Processing as a reactant
•Hardener in Construction (100%)Processing—incorporation into formulation, mixture, or reaction product
•Hardener in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Filler in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Pigment in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.03/gALFA AESAR

CountryGermany

Pack$325.20 / 10 kg

Purity99%

Vendors13 available

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

12 more vendors

Vendor	Country	$/g	Pack	Purity
A2B Chem LLC	United States	$0.04	500 g	98%
AA BLOCKS	United States	$0.04	500 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$0.08	1 kg	99%
Sigma-Aldrich	Germany	$0.08	1 kg	99%
AK Scientific Specialized	United States	$0.12	500 g	98%
AK Scientific, Inc.	United States	$0.15	500 g	99%
Combi-Blocks, Inc.	United States	$0.25	1 kg	98%
MedKoo Biosciences, Inc	United States	$3.30	100 g	98%
Specs	Netherlands	$132.13	10 g	90%
Labotest KG	Germany	$217.80	5000 mg	90%
Otava, Ltd.	Ukraine	$2280.00	50 mg	95%
Otava, Ltd. (2 weeks)	Ukraine	$2724.00	50 mg	95%

Chemical Identity

CAS98-54-4

PubChem CID7393

DTXSIDDTXSID1020221

FormulaC10H14O

Mol. Weight150.22 g/mol

SMILESCC(C)(C)C1=CC=C(C=C1)O

Data Sources

EPA CompTox (DSSTox) · DTXSID1020221Retrieved 2026-04-06
PubChem · compound 7393Retrieved 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-(1,1-Dimethylethyl)phenol (CAS 98-54-4) https://chemicalindependence.com/chemical/98-54-4/ EPA CompTox (DSSTox): DTXSID1020221. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1020221 PubChem: 7393. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/7393 EPA Chemical Data Reporting: 98-54-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 98-54-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290719 for CAS 98-54-4. Reporting year: 2024. https://usatrade.census.gov/