4,4'-Sulfonylbis[2-(prop-2-en-1-yl)phenol]

CAS 41481-66-7

EPA’s 2023 records show zero U.S. production of this chemical.

US productionZero

Import value, 2024$760M

Import volumeCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Top sourceChina 33%

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. 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 293090 · basket

EPA reports by year

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

These shares come from HS customs code 293090, which covers 418 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 33%ChinaES 14%SpainCH 9%SwitzerlandIT 7%ItalyIN 7%India

Israel
Croatia
Ukraine
Slovakia
United Arab Emirates
Ireland
Poland
Lithuania
Brazil
Singapore
Australia
Armenia
Hong Kong
Vietnam
Czech Republic
Hungary
Greece
Russia

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.

Marubeni America

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.

Ricoh Electronics

Why It Matters

Sectors

Consumer ProductsPaper & Printing

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 1 functional role.

•Pigment in Paper Manufacturing (100%)Use—non-incorporative activities
•Pigment in Wholesale and Retail Trade (100%)Use—non-incorporative activities

Vendor Pricing

$2.93/gAaron Chemicals LLC

CountryHong Kong

Pack$293.00 / 100 g

Purity97%

Vendors8 available

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

7 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$2.96	100 g	97%
A2B Chem LLC (2 weeks)	United States	$3.09	100 g	97%
AA BLOCKS (2 weeks)	United States	$3.20	100 g	—
AstaTech (2 weeks)	United States	$8.15	100 g	95%
Labotest KG	Germany	$453.00	1000 mg	90%
TimTec, LLC	United States	$9333.33	30 mg	90%
Asinex	Netherlands	$87120.00	2 mg	90%

Chemical Identity

CAS41481-66-7

PubChem CID833466

DTXSIDDTXSID9047598

FormulaC18H18O4S

Mol. Weight330.4 g/mol

SMILESC=CCC1=C(C=CC(=C1)S(=O)(=O)C2=CC(=C(C=C2)O)CC=C)O

Data Sources

EPA CompTox (DSSTox) · DTXSID9047598Retrieved 2026-04-06
PubChem · compound 833466Retrieved 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'-Sulfonylbis[2-(prop-2-en-1-yl)phenol] (CAS 41481-66-7) https://chemicalindependence.com/chemical/41481-66-7/ EPA CompTox (DSSTox): DTXSID9047598. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9047598 PubChem: 833466. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/833466 EPA Chemical Data Reporting: 41481-66-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 41481-66-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293090 for CAS 41481-66-7. Reporting year: 2024. https://usatrade.census.gov/