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Xylenesulfonic acid

CAS 25321-41-9

Used in 3 industrial sectors tracked by the EPA.

Molecular structure of 25321-41-9
US production2.3M 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 290410 · basket

EPA reports by year
2023
US production 2.3M lb · Imports Zero
2019
US production 4.5M 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 (2)
Catexel Nease
Dynachem
Domestic parents -- activity not disclosed (1)
Polyventive

Why It Matters

Sectors
Metals & MiningPlastics & RubberConsumer Products
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 4 sectors as 2 functional roles.

  • •Catalyst in Plastics Material and Resin Manufacturing (98%)Processing—incorporation into formulation, mixture, or reaction product
  • •Surfactant (surface active agent) in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (2%)Processing—incorporation into formulation, mixture, or reaction product
  • •Catalyst in Primary Metal Manufacturing (50%)Processing as a reactant
  • •Catalyst in Other (50%)Processing as a reactant

Chemical Identity

CAS25321-41-9
PubChem CIDNot recorded
DTXSIDDTXSID4027860
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

Xylenesulfonic acid (CAS 25321-41-9) https://chemicalindependence.com/chemical/25321-41-9/ EPA CompTox (DSSTox): DTXSID4027860. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4027860 EPA Chemical Data Reporting: 25321-41-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 25321-41-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting