Benzene, 1,2-dimethyl-4,5-bis(1-phenylethyl)-

CAS 51580-93-9

US productionNot reported

Import value, 2024$68M

Top sourceIndia 35%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

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

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

Why It Matters

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

Chemical Identity

CAS51580-93-9

PubChem CIDNot recorded

DTXSIDDTXSID50885960

FormulaC24H26

Mol. Weight314.472 g/mol

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

Data Sources

EPA TSCA InventoryRetrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Benzene, 1,2-dimethyl-4,5-bis(1-phenylethyl)- (CAS 51580-93-9) https://chemicalindependence.com/chemical/51580-93-9/ EPA TSCA Inventory: CAS 51580-93-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 290290 for CAS 51580-93-9. Reporting year: 2024. https://usatrade.census.gov/