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Naphthenic acids, copper salts

CAS 1338-02-9

U.S. production volumes are classified as confidential business information.

Molecular structure of 1338-02-9
US productionCBI
Import value, 2024$6.1B
Top sourceJapan 32%

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. US production volume is confidential. 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 382499 · basket

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production 43.5K lb · Imports 37.4K lb

These shares come from HS customs code 382499, which covers 206 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
JP 32%JapanKR 27%South KoreaDE 8%GermanyCA 6%CanadaCN 4%China
EPA-registered manufacturers (1)
Milliken &
Domestic parents -- activity not disclosed (1)
Dura Chemicals

Why It Matters

Sectors
Metals & MiningPlastics & RubberPaints & CoatingsCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 3 sectors as 2 functional roles.

  • •Catalyst in Plastics Material and Resin Manufacturing (60%)Processing—incorporation into formulation, mixture, or reaction product
  • •Surface modifier in Paint and Coating Manufacturing (1%)Processing—incorporation into formulation, mixture, or reaction product
  • •Catalyst in OtherProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS1338-02-9
PubChem CIDNot recorded
DTXSIDDTXSID1027392
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

Naphthenic acids, copper salts (CAS 1338-02-9) https://chemicalindependence.com/chemical/1338-02-9/ EPA CompTox (DSSTox): DTXSID1027392. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1027392 EPA Chemical Data Reporting: 1338-02-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1338-02-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 382499 for CAS 1338-02-9. Reporting year: 2024. https://usatrade.census.gov/