Phenolsulfonic acid

CAS 1333-39-7

Used in 1 industrial sector tracked by the EPA.

Molecular structure of 1333-39-7 — 1 H₂O

US production1.1M lb

Import volumeZero

Import dependency0%

Top sourceNo public record

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 290899 · basket

EPA reports by year

2023: US production 1.1M lb · Imports Zero
2019: US production 958.9K lb · Imports Zero

HS customs code 290899 covers 60 tracked chemicals in total. US Census does not break out this chemical's share, so the country-of-origin mix is not available. EPA CDR reports import dependency at the chemical level separately, shown above.

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 (1)

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

Polyventive

Why It Matters

Sectors

Metals & Mining

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

•Catalyst in Other (40%)Processing as a reactant

Vendor Pricing

$0.02/gAaron Chemicals LLC

CountryHong Kong

Pack$10.00 / 500 g

Purity98%

Vendors13 available

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

12 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.02	500 g	98%
Fluorochem UK	United Kingdom	$0.07	1 kg	97%
Combi-Blocks, Inc.	United States	$0.25	1 kg	97%
A2B Chem LLC	United States	$0.27	1 kg	95%
AA BLOCKS	United States	$0.28	1 kg	95%
Ambeed, Inc.	United States	$0.30	500 g	98%
Fluorochem EU	Germany	$0.35	100 g	97%
AstaTech (2 weeks)	United States	$0.99	100 g	95%
Sigma-Aldrich (Rush Stock)	Germany	$1.60	250 g	97%
Sigma-Aldrich	Germany	$1.60	250 g	97%
Angene International Limited	United States	$2.52	25 g	95%
Angene	China → Hong Kong	$4266.67	30 mg	98%

Chemical Identity

CAS1333-39-7

PubChem CID15619088

DTXSIDDTXSID1027390

FormulaC6H8O4S

Mol. Weight176.19 g/mol

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

Data Sources

EPA CompTox (DSSTox) · DTXSID1027390Retrieved 2026-04-06
PubChem · compound 15619088Retrieved 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

Phenolsulfonic acid (CAS 1333-39-7) https://chemicalindependence.com/chemical/1333-39-7/ EPA CompTox (DSSTox): DTXSID1027390. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1027390 PubChem: 15619088. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/15619088 EPA Chemical Data Reporting: 1333-39-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1333-39-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting