1,4-Diethylbenzene

CAS 105-05-5

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$68M

Top sourceIndia 35%

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 290290 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 290290, which covers 171 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).

IN 35%IndiaTW 11%TaiwanES 10%SpainDE 10%GermanyCN 8%China

Czech Republic
Netherlands
Switzerland
Pakistan
United Kingdom
Austria
Denmark
Indonesia
Lithuania
Hong Kong
Finland

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.

Crh Americas

EPA-registered importers (2)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Exxonmobil Product Solutions, A Div Of Exxon Mobil

Koch Industries

Why It Matters

Sectors

EnergyConstructionCore Chemicals

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

•Intermediate in Petrochemical Manufacturing (100%)Processing as a reactant

Vendor Pricing

$1.58/gManchester Organics

CountryUnited Kingdom

Pack$394.82 / 250 g

PurityNot recorded

Vendors9 available

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

8 more vendors

Vendor	Country	$/g	Pack	Purity
AK Scientific Specialized	United States	$6.72	25 g	97%
ALFA AESAR	Germany	$7.78	100 g	98%
AK Scientific, Inc.	United States	$8.55	100 g	99%
A2B Chem LLC	United States	$9.96	25 g	98%
AA BLOCKS	United States	$10.28	25 g	99%
Combi-Blocks, Inc.	United States	$10.40	25 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$11.52	10 g	96%
Sigma-Aldrich	Germany	$11.52	10 g	96%

Chemical Identity

CAS105-05-5

PubChem CID7734

DTXSIDDTXSID4026711

FormulaC10H14

Mol. Weight134.22 g/mol

SMILESCCC1=CC=C(C=C1)CC

Data Sources

EPA CompTox (DSSTox) · DTXSID4026711Retrieved 2026-04-06
PubChem · compound 7734Retrieved 2026-04-06
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

1,4-Diethylbenzene (CAS 105-05-5) https://chemicalindependence.com/chemical/105-05-5/ EPA CompTox (DSSTox): DTXSID4026711. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4026711 PubChem: 7734. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/7734 EPA Chemical Data Reporting: 105-05-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 105-05-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290290 for CAS 105-05-5. Reporting year: 2024. https://usatrade.census.gov/