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3-Buten-2-one, 3-methyl-4-phenyl-

CAS 1901-26-4

Molecular structure of 1901-26-4
US productionNot reported
Import value, 2024$16M
Top sourceChina 55%

EPA lists this chemical as inactive, meaning no company reported making, importing or processing it in the US from 2006 to 2016.

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 291439 · basket

These shares come from HS customs code 291439, which covers 86 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 55%ChinaIN 26%IndiaIT 7%ItalyDE 5%GermanyGB 2%United Kingdom

Why It Matters

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

Chemical Identity

CAS1901-26-4
PubChem CIDNot recorded
DTXSIDDTXSID0062050
FormulaC11H12O
Mol. Weight160.216 g/mol
SMILESCC(=O)C(C)=CC1=CC=CC=C1

Data Sources

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Brief citations

3-Buten-2-one, 3-methyl-4-phenyl- (CAS 1901-26-4) https://chemicalindependence.com/chemical/1901-26-4/ EPA CompTox (DSSTox): 1901-26-4. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0062050 EPA TSCA Inventory: CAS 1901-26-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291439 for CAS 1901-26-4. Reporting year: 2024. https://usatrade.census.gov/