4-tert-Butylstyrene

CAS 1746-23-2

Used in 2 industrial sectors tracked by the EPA.

US production344.8K lb

Import volumeZero

Import dependency0%

Top sourceNo public record

Production is reported production, not a complete census of factories. 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 290290 · basket

EPA reports by year

2023: US production 344.8K lb · Imports Zero
2019: US production Confidential · Imports Zero

HS customs code 290290 covers 171 tracked chemicals in total. US Census does not break out this chemical's share, so the country-of-origin mix is not available. EPA CDR reports import dependency at the chemical level separately, shown above.

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Deltech Monomers Bidco Holdings

Why It Matters

Sectors

Plastics & RubberPaints & Coatings

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 1 functional role.

•Monomers in Paint and Coating Manufacturing (6%)Processing as a reactant
•Monomers in Plastics Material and Resin Manufacturing (28%)Processing as a reactant

Vendor Pricing

$0.30/gBLD Pharmatech Ltd.

CountryChina

Pack$150.00 / 500 g

Purity90%

Vendors15 available

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

14 more vendors

Vendor	Country	$/g	Pack	Purity
A2B Chem LLC	United States	$0.30	500 g	93%
Combi-Blocks, Inc.	United States	$0.30	500 g	93%
AA BLOCKS	United States	$0.35	500 g	90%
Fluorochem EU	Germany	$0.36	100 g	90%
Fluorochem UK	United Kingdom	$0.37	100 g	90%
Aaron Chemicals LLC	Hong Kong	$0.45	500 g	90%
BLD Pharmatech Co., Limited	United States	$0.50	100 g	90%
BLD Pharmatech GmbH	Germany	$0.50	100 g	90%
Ambeed, Inc.	United States	$0.50	100 g	90%
MedChemExpress MCE	Sweden	$0.52	100 g	—
Angene Chemical	China → Hong Kong	$0.52	500 g	90%
Sigma-Aldrich (Rush Stock)	Germany	$18.42	10 g	—
Sigma-Aldrich	Germany	$18.42	10 g	—
Angene	China → Hong Kong	$4266.67	30 mg	90%

Chemical Identity

CAS1746-23-2

PubChem CID15627

DTXSIDDTXSID0022305

FormulaC12H16

Mol. Weight160.25 g/mol

SMILESCC(C)(C)C1=CC=C(C=C1)C=C

Data Sources

EPA CompTox (DSSTox) · DTXSID0022305Retrieved 2026-04-06
PubChem · compound 15627Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

4-tert-Butylstyrene (CAS 1746-23-2) https://chemicalindependence.com/chemical/1746-23-2/ EPA CompTox (DSSTox): DTXSID0022305. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0022305 PubChem: 15627. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/15627 EPA Chemical Data Reporting: 1746-23-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1746-23-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting