Quaternium 18

CAS 61789-80-8

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

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$52M

Top sourceSouth Korea 35%

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 340241 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 340241, which covers 10 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

KR 35%South KoreaMX 18%MexicoCA 16%CanadaCN 11%ChinaDE 5%Germany

Qatar
Italy
Netherlands
Indonesia
Vietnam
Singapore
South Africa
Denmark
United Kingdom
Turkey
Israel
Spain
Belgium
Poland
Norway
Taiwan
Pakistan

EPA-registered importers (4)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Kao · JP Japan

Syensqo Sa · BE Belgium

Kao America

Solvay

Why It Matters

Sectors

EnergyPaints & Coatings

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.

•Dispersing agent in Oil and Gas Drilling, Extraction, and Support activities (100%)Processing—incorporation into formulation, mixture, or reaction product
•CBI in CBICBI

Chemical Identity

CAS61789-80-8

PubChem CIDNot recorded

DTXSIDDTXSID5028081

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID5028081Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Quaternium 18 (CAS 61789-80-8) https://chemicalindependence.com/chemical/61789-80-8/ EPA CompTox (DSSTox): DTXSID5028081. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID5028081 EPA Chemical Data Reporting: 61789-80-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 61789-80-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 340241 for CAS 61789-80-8. Reporting year: 2024. https://usatrade.census.gov/