Potassium p-tert-butylbenzoate

CAS 16518-26-6

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

Molecular structure of 16518-26-6 — 1 K⁺

US productionCBI

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

Import value, 2024$84M

Top sourceChina 63%

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 291639 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production 198.3K lb · Imports Zero

These shares come from HS customs code 291639, which covers 229 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).

CN 63%ChinaIT 19%ItalyIN 8%IndiaDE 4%GermanyCH 3%Switzerland

Spain
Ukraine
Singapore
Turkey
Norway
Czech Republic
Taiwan
South Korea
Japan
Mexico
New Zealand
Canada
Sweden
Hong Kong
Latvia

EPA-registered manufacturers (2)

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

Dober Chemical

Old World Industries

EPA-registered importers (1)

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

Brenntag Lubricants

Why It Matters

Sectors

Consumer ProductsCore Chemicals

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.

•Corrosion inhibitor in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Lubricating agent in Wholesale and Retail TradeProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS16518-26-6

PubChem CID23672309

DTXSIDDTXSID1066073

FormulaC11H13KO2

Mol. Weight216.32 g/mol

SMILESCC(C)(C)C1=CC=C(C=C1)C(=O)[O-].[K+]

Data Sources

EPA CompTox (DSSTox) · DTXSID1066073Retrieved 2026-04-06
PubChem · compound 23672309Retrieved 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

Potassium p-tert-butylbenzoate (CAS 16518-26-6) https://chemicalindependence.com/chemical/16518-26-6/ EPA CompTox (DSSTox): DTXSID1066073. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1066073 PubChem: 23672309. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/23672309 EPA Chemical Data Reporting: 16518-26-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 16518-26-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291639 for CAS 16518-26-6. Reporting year: 2024. https://usatrade.census.gov/