Benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, butyl ester

CAS 52449-44-2

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$122M

Top sourceSouth Korea 39%

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 291829 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential

These shares come from HS customs code 291829, which covers 85 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 39%South KoreaCN 26%ChinaTW 11%TaiwanJP 9%JapanSG 5%Singapore

United Kingdom
Germany
Malaysia
Mexico
Ireland
Ukraine
Slovakia
Hungary
Spain

Why It Matters

Sectors

Energy

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

•Lubricating agent in Petroleum Lubricating Oil and Grease Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS52449-44-2

PubChem CIDNot recorded

DTXSIDDTXSID401335359

FormulaC21H34O3

Mol. Weight334.5 g/mol

SMILESCCCCOC(=O)CCC1=CC(=C(O)C(=C1)C(C)(C)C)C(C)(C)C

Data Sources

EPA TSCA InventoryRetrieved 2026-04-29
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

Benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, butyl ester (CAS 52449-44-2) https://chemicalindependence.com/chemical/52449-44-2/ EPA TSCA Inventory: CAS 52449-44-2. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 52449-44-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 52449-44-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291829 for CAS 52449-44-2. Reporting year: 2024. https://usatrade.census.gov/