2,4-Di-tert-butylphenyl 3′,5′-di-tert-butyl-4′-hydroxybenzoate

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

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 (3)

Songwon Industrial · KR South Korea

Mitsubishi Corporation (Americas)

Songwon International Americas

Why It Matters

Sectors

Plastics & Rubber

Downstream UsesNo data available

FDA Shortage Status

No FDA shortage records

Industrial Uses

Used in 1 sector as 1 functional role.

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

Vendor Pricing

$0.41/gCombi-Blocks, Inc.

CountryUnited States

Pack$205.00 / 500 g

Purity98%

Vendors8 available

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

7 more vendors

Vendor	Country	$/g	Pack	Purity
BLD Pharmatech Ltd.	China	$0.54	100 g	98%
Aaron Chemicals LLC	Hong Kong	$0.65	500 g	98%
Angene Chemical	China → Hong Kong	$0.70	500 g	98%
AstaTech (2 weeks)	United States	$1.76	100 g	95%
A2B Chem LLC	United States	$1.82	100 g	98%
AA BLOCKS	United States	$2.36	100 g	98%
Angene	China → Hong Kong	$4266.67	30 mg	98%

Chemical Identity

CAS4221-80-1

PubChem CID77897

DTXSIDDTXSID5063364

FormulaC29H42O3

Mol. Weight438.6 g/mol

SMILESCC(C)(C)C1=CC(=C(C=C1)OC(=O)C2=CC(=C(C(=C2)C(C)(C)C)O)C(C)(C)C)C(C)(C)C

Data Sources

DTXSID50633642026-04-06

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

Archive: data/sources/comptox/dsstox_identifiers.csv

778972026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/77897/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/77897.json

4221-80-12026-04-24

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

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

CAS 4221-80-12026-04-25

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

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

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