4,4'-Sulfonyldiphenol

CAS 80-09-1

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 (2)

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

Marubeni America

Polyventive

EPA-registered importers (4)

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

Sumitomo · JP Japan

Colonial Group

Ricoh Electronics

Sumitomo Corporation Of Americas

Why It Matters

Sectors

ConstructionTextilesPaper & PrintingCore 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 4 sectors as 4 functional roles.

•Surfactant (surface active agent) in Textiles, apparel, and leather manufacturing (100%)Processing as a reactant
•Monomers in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Polymerization promoter in Printing and Related Support Activities (100%)Processing—incorporation into formulation, mixture, or reaction product
•Etching agent in Adhesive Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.02/gAaron Chemicals LLC

CountryHong Kong

Pack$8.00 / 500 g

Purity99.8%

Vendors29 available

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

28 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.02	500 g	99.8%
BLD Pharmatech GmbH	Germany	$0.04	1 kg	97%
BLD Pharmatech Ltd.	China	$0.04	1 kg	97%
A2B Chem LLC	United States	$0.04	500 g	97%
AA BLOCKS	United States	$0.05	500 g	97%
Chemscene	United States	$0.05	1 kg	—
Fluorochem EU	Germany	$0.06	1 kg	98%
AK Scientific Specialized	United States	$0.07	1 kg	95%
AK Scientific, Inc.	United States	$0.15	500 g	98%
ALFA AESAR	Germany	$0.18	1 kg	99%
Fulfilled by Molport	Latvia	$0.20	25 g	—
Ambeed, Inc.	United States	$0.24	100 g	97%
Combi-Blocks, Inc.	United States	$0.25	1 kg	97%
Angene International Limited	United States	$0.30	500 g	98%
MedChemExpress MCE	Sweden	$0.30	1 kg	99.81%
Sigma-Aldrich (Rush Stock)	Germany	$0.45	500 g	98%
Sigma-Aldrich	Germany	$0.45	500 g	98%
BLD Pharmatech Co., Limited	United States	$0.80	25 g	97%
AstaTech (2 weeks)	United States	$3.08	25 g	95%
Labotest KG	Germany	$217.80	5000 mg	90%
Vitas M Chemical Limited	Hong Kong	$310.00	1 g	90%
ChemBridge Corporation	Kazakhstan	$1860.00	100 mg	90%
Otava, Ltd. (2 weeks)	Ukraine	$2724.00	50 mg	90%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
ChemDiv, Inc.	United States	$4070.00	100 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	99.8%
Asinex	Netherlands	$12100.00	30 mg	90%
TimTec, LLC (back-ordered)	United States	$32000.00	15 mg	94%

Chemical Identity

CAS80-09-1

PubChem CID6626

DTXSIDDTXSID3022409

FormulaC12H10O4S

Mol. Weight250.27 g/mol

SMILESC1=CC(=CC=C1O)S(=O)(=O)C2=CC=C(C=C2)O

Data Sources

EPA CompTox (DSSTox) · DTXSID3022409Retrieved 2026-04-06
PubChem · compound 6626Retrieved 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'-Sulfonyldiphenol (CAS 80-09-1) https://chemicalindependence.com/chemical/80-09-1/ EPA CompTox (DSSTox): DTXSID3022409. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3022409 PubChem: 6626. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6626 EPA Chemical Data Reporting: 80-09-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 80-09-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293090 for CAS 80-09-1. Reporting year: 2024. https://usatrade.census.gov/