1,2,3,4-Tetramethylbenzene

CAS 488-23-3

US productionNot reported

Import value, 2024$68M

Top sourceIndia 35%

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 290290 · basket

EPA reports by year

2019: US production Not published · Imports Not published

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.

Evonik

Why It Matters

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

Vendor Pricing

$3.26/gAngene Chemical

CountryChina (registered: Hong Kong)

Pack$326.00 / 100 g

Purity96%

Vendors19 available

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

18 more vendors

Vendor	Country	$/g	Pack	Purity
Aaron Chemicals LLC	Hong Kong	$3.36	100 g	96%
A2B Chem LLC	United States	$4.17	100 g	96%
AA BLOCKS	United States	$4.78	100 g	97%
Combi-Blocks, Inc.	United States	$5.35	100 g	97%
Chemscene	United States	$5.95	100 g	—
BLD Pharmatech Co., Limited	United States	$6.04	100 g	97%
BLD Pharmatech GmbH	Germany	$6.04	100 g	97%
BLD Pharmatech Ltd.	China	$6.04	100 g	97%
Ambeed, Inc.	United States	$6.04	100 g	97%
AstaTech, Inc	United States	$6.16	25 g	95%
Fluorochem EU	Germany	$7.31	25 g	95%
Fluorochem UK	United Kingdom	$7.44	25 g	95%
Synthonix	United States	$7.60	25 g	95%
MedChemExpress MCE	Sweden	$9.00	25 g	99%
Angene International Limited	United States	$26.00	1 g	97%
ALFA AESAR	Germany	$27.12	25 g	95%
TargetMol Chemicals	China → United States	$145.00	200 mg	97.06%
Angene	China → Hong Kong	$4266.67	30 mg	96%

Chemical Identity

CAS488-23-3

PubChem CID10263

DTXSIDDTXSID4060072

FormulaC10H14

Mol. Weight134.22 g/mol

SMILESCC1=C(C(=C(C=C1)C)C)C

Data Sources

EPA CompTox (DSSTox) · DTXSID4060072Retrieved 2026-04-06
PubChem · compound 10263Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

← Back to Dashboard

Brief citations

1,2,3,4-Tetramethylbenzene (CAS 488-23-3) https://chemicalindependence.com/chemical/488-23-3/ EPA CompTox (DSSTox): DTXSID4060072. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4060072 PubChem: 10263. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/10263 EPA Chemical Data Reporting: 488-23-3. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290290 for CAS 488-23-3. Reporting year: 2024. https://usatrade.census.gov/