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Hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate

CAS 67845-93-6

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

Molecular structure of 67845-93-6
US productionCBI
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
2019
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
KR 39%South KoreaCN 26%ChinaTW 11%TaiwanJP 9%JapanSG 5%Singapore
EPA-registered manufacturers (2)
Syensqo Sa · BE Belgium
Solvay
Domestic parents -- activity not disclosed (1)
Basf
EPA-registered importers (4)
Songwon Industrial · KR South Korea
Syensqo Sa · BE Belgium
Mitsubishi International Polymertrade
Songwon

Why It Matters

Sectors
Plastics & Rubber
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 1 functional role.

  • •UV stabilizer in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •UV stabilizer in Plastics Product Manufacturing (30%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.15/gAaron Chemicals LLC
CountryHong Kong
Pack$75.00 / 500 g
Purity98%
Vendors16 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

15 more vendors
VendorCountry$/gPackPurity
A2B Chem LLCUnited States$0.161 kg98%
Angene ChemicalChina → Hong Kong$0.16500 g98%
AA BLOCKSUnited States$0.191 kg98%
AK Scientific SpecializedUnited States$0.221 kg95%
ChemsceneUnited States$0.221 kg—
BLD Pharmatech GmbHGermany$0.241 kg98%
BLD Pharmatech Ltd.China$0.241 kg98%
Ambeed, Inc.United States$0.251 kg98%
AK Scientific, Inc.United States$0.251 kg98%
Combi-Blocks, Inc.United States$0.251 kg98%
BLD Pharmatech Co., LimitedUnited States$0.30500 g98%
Angene International LimitedUnited States$0.53500 g98%
Apollo Scientific UKUnited Kingdom$0.8425 g98%
AstaTech (2 weeks)United States$3.09100 g97%
AngeneChina → Hong Kong$4266.6730 mg98%

Chemical Identity

CAS67845-93-6
PubChem CID94623
DTXSIDDTXSID0052382
FormulaC31H54O3
Mol. Weight474.8 g/mol
SMILESCCCCCCCCCCCCCCCCOC(=O)C1=CC(=C(C(=C1)C(C)(C)C)O)C(C)(C)C

Data Sources

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Brief citations

Hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate (CAS 67845-93-6) https://chemicalindependence.com/chemical/67845-93-6/ EPA CompTox (DSSTox): DTXSID0052382. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0052382 PubChem: 94623. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/94623 EPA Chemical Data Reporting: 67845-93-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 67845-93-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291829 for CAS 67845-93-6. Reporting year: 2024. https://usatrade.census.gov/