2,4'-Dihydroxydiphenyl sulfone

CAS 5397-34-2

Companies reported imports and no US production of this chemical to EPA for 2023.

US productionZero

Import volume2.2K lb

Import dependency100%

Top sourceNo public record

Production is reported production, not a complete census of factories. Production reporting year: 2023.

Where It Comes From

EPA reports by year

2023: US production Zero · Imports 2.2K lb
2019: US production Confidential · Imports Confidential

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

Paper & 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

Vendor Pricing

$0.30/gAaron Chemicals LLC

CountryHong Kong

Pack$150.00 / 500 g

Purity95%

Vendors17 available

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

16 more vendors

Vendor	Country	$/g	Pack	Purity
A2B Chem LLC	United States	$0.31	500 g	95%
AA BLOCKS	United States	$0.34	500 g	95%
Angene Chemical	China → Hong Kong	$0.35	500 g	96%
Combi-Blocks, Inc.	United States	$0.37	500 g	98%
Chemscene	United States	$0.43	500 g	—
BLD Pharmatech Co., Limited	United States	$0.43	500 g	95%
BLD Pharmatech GmbH	Germany	$0.43	500 g	95%
BLD Pharmatech Ltd.	China	$0.43	500 g	95%
Ambeed, Inc.	United States	$0.43	500 g	95%
AK Scientific Specialized	United States	$0.85	100 g	95%
AK Scientific, Inc.	United States	$1.17	100 g	98%
MedChemExpress MCE	Sweden	$1.26	25 g	99%
Angene International Limited	United States	$2.15	100 g	98%
Fluorochem EU	Germany	$2.90	5 g	96%
AstaTech (2 weeks)	United States	$9.60	5 g	95%
Angene	China → Hong Kong	$4266.67	30 mg	96%

Chemical Identity

CAS5397-34-2

PubChem CID79381

DTXSIDDTXSID9052183

FormulaC12H10O4S

Mol. Weight250.27 g/mol

SMILESC1=CC=C(C(=C1)O)S(=O)(=O)C2=CC=C(C=C2)O

Data Sources

EPA CompTox (DSSTox) · DTXSID9052183Retrieved 2026-04-06
PubChem · compound 79381Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

2,4'-Dihydroxydiphenyl sulfone (CAS 5397-34-2) https://chemicalindependence.com/chemical/5397-34-2/ EPA CompTox (DSSTox): DTXSID9052183. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9052183 PubChem: 79381. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/79381 EPA Chemical Data Reporting: 5397-34-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 5397-34-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting