2-{[3,3-Bis(3-tert-butyl-4-hydroxyphenyl)butanoyl]oxy}ethyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)-3-(3-tert-butyl-4-hydroxyphenyl)butanoate

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

Molecular structure of 32509-66-3
US ProductionCBI
Import Value$122M
Top SourceSouth Korea 39%

The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.

Where It Comes From

Customs basis: HS 291829 · basket

These shares come from HS customs code 291829, which covers 20 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries
KR 39%South KoreaCN 26%ChinaTW 11%TaiwanJP 9%JapanSG 5%Singapore
EPA-registered importers (2)
Clariant International · CH Switzerland
Clariant

Why It Matters

Sectors
Plastics & Rubber
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 1 functional role.

  • Antioxidant in Plastics Product Manufacturing (100%)Processing—incorporation into article
  • Antioxidant in Custom Compounding of Purchased Resins (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS32509-66-3
PubChem CID122891
DTXSIDDTXSID9052006
FormulaC50H66O8
Mol. Weight795.1 g/mol
SMILESCC(C)(C)C1=C(C=CC(=C1)C(C)(CC(=O)OCCOC(=O)CC(C)(C2=CC(=C(C=C2)O)C(C)(C)C)C3=CC(=C(C=C3)O)C(C)(C)C)C4=CC(=C(C=C4)O)C(C)(C)C)O

Data Sources

DTXSID90520062026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

1228912026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/122891/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/122891.json

32509-66-32026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 32509-66-32026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv