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3-Methylbut-2-enyl isobutyrate

CAS 76649-23-5

Propanoic acid, 2-methyl-, 3-methyl-2-buten-1-yl ester

Molecular structure of 76649-23-5
US productionNot reported
Import value, 2024$63M
Top sourceChina 22%

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 291560 · basket

These shares come from HS customs code 291560, which covers 183 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 22%ChinaDE 19%GermanySE 14%SwedenJP 13%JapanIN 9%India

Why It Matters

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

Chemical Identity

CAS76649-23-5
PubChem CIDNot recorded
DTXSIDDTXSID6072841
FormulaC9H16O2
Mol. Weight156.225 g/mol
SMILESCC(C)C(=O)OCC=C(C)C

Data Sources

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Brief citations

3-Methylbut-2-enyl isobutyrate (CAS 76649-23-5) https://chemicalindependence.com/chemical/76649-23-5/ EPA TSCA Inventory: CAS 76649-23-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291560 for CAS 76649-23-5. Reporting year: 2024. https://usatrade.census.gov/