1-Methylethylbenzenesulfonic acid

CAS 37953-05-2

Used in 2 industrial sectors tracked by the EPA.

US production63.5K lb

Import volumeZero

Import dependency0%

Top sourceNo public record

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 290410 · basket

EPA reports by year

2023: US production Not published · Imports Not published
2019: US production 63.5K lb · Imports Zero

HS customs code 290410 covers 115 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.

Nease

Why It Matters

Sectors

EnergyConsumer Products

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 2 functional roles.

•Processing aids, specific to petroleum production in Oil and Gas Drilling, Extraction, and Support activities (97%)Processing—incorporation into formulation, mixture, or reaction product
•Plating agent in Photographic Film, Paper, Plate, and Chemical Manufacturing (3%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$14.60/gCombi-Blocks, Inc.

CountryUnited States

Pack$365.00 / 25 g

Purity98%

Vendors11 available

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

10 more vendors

Vendor	Country	$/g	Pack	Purity
Aaron Chemicals LLC	Hong Kong	$15.51	100 g	97%
A2B Chem LLC	United States	$16.48	25 g	98%
Angene Chemical	China → Hong Kong	$16.56	100 g	97%
Ambeed, Inc.	United States	$16.96	25 g	98%
AA BLOCKS	United States	$17.40	25 g	98%
MedChemExpress MCE	Sweden	$20.72	25 g	—
AstaTech, Inc	United States	$24.00	25 g	97%
Angene International Limited	United States	$59.00	1 g	97%
Accela ChemBio	United States	$60.00	1 g	97%
Angene	China → Hong Kong	$4266.67	30 mg	97%

Chemical Identity

CAS37953-05-2

PubChem CID6640

DTXSIDDTXSID2047513

FormulaC9H12O3S

Mol. Weight200.26 g/mol

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

Data Sources

EPA CompTox (DSSTox) · DTXSID2047513Retrieved 2026-04-06
PubChem · compound 6640Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

1-Methylethylbenzenesulfonic acid (CAS 37953-05-2) https://chemicalindependence.com/chemical/37953-05-2/ EPA CompTox (DSSTox): DTXSID2047513. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2047513 PubChem: 6640. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6640 EPA Chemical Data Reporting: 37953-05-2. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 37953-05-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting