2,4,4-Trimethyl-2-pentene

CAS 107-40-4

US productionNot reported

Import value, 2024$246M

Top sourceCanada 51%

EPA lists this chemical for 2019 but publishes zero or no volume for both production and imports.

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 290129 · basket

EPA reports by year

2019: US production Not published · Imports Not published

These shares come from HS customs code 290129, which covers 108 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).

CA 51%CanadaZA 32%South AfricaBR 6%BrazilJP 4%JapanIT 1%Italy

Spain
Ireland
India
United Kingdom
Malaysia
Dominican Republic
Mexico
Switzerland
Australia
South Korea
Turkey
Portugal
Morocco
Guyana
Poland
Netherlands
Belgium
Slovakia
Ukraine

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.

Mitsui & Co. (U. S. A.)

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Vendor Pricing

$3.98/gAstaTech, Inc

CountryUnited States

Pack$398.00 / 100 g

Purity95%

Vendors8 available

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

7 more vendors

Vendor	Country	$/g	Pack	Purity
ALFA AESAR	Germany	$5.62	100 g	97%
A2B Chem LLC	United States	$6.20	25 g	95%
Combi-Blocks, Inc.	United States	$6.20	25 g	97%
AA BLOCKS	United States	$7.16	25 g	95%
Sigma-Aldrich (Rush Stock)	Germany	$15.87	25 g	99%
Sigma-Aldrich	Germany	$15.87	25 g	99%
Labotest KG	Germany	$217.80	5000 mg	90%

Chemical Identity

CAS107-40-4

PubChem CID7869

DTXSIDDTXSID9026766

FormulaC8H16

Mol. Weight112.21 g/mol

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

Data Sources

EPA CompTox (DSSTox) · DTXSID9026766Retrieved 2026-04-06
PubChem · compound 7869Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

2,4,4-Trimethyl-2-pentene (CAS 107-40-4) https://chemicalindependence.com/chemical/107-40-4/ EPA CompTox (DSSTox): DTXSID9026766. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9026766 PubChem: 7869. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/7869 EPA Chemical Data Reporting: 107-40-4. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290129 for CAS 107-40-4. Reporting year: 2024. https://usatrade.census.gov/