2-Propenoic acid, 2-methylbutyl ester

CAS 44914-03-6

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$196M

Top sourceSouth Korea 24%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 291612 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 291612, which covers 92 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).

KR 24%South KoreaTW 17%TaiwanZA 14%South AfricaIT 13%ItalyJP 12%Japan

United Kingdom
Hungary
Singapore
Saudi Arabia
Netherlands
Switzerland
Spain
Malaysia
Canada
Lithuania
India
Mexico
Denmark

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.

Why It Matters

Sectors

Core Chemicals

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

•Monomers in All Other Basic Organic Chemical ManufacturingProcessing as a reactant

Chemical Identity

CAS44914-03-6

PubChem CID162070

DTXSIDDTXSID8029367

FormulaC8H14O2

Mol. Weight142.2 g/mol

SMILESCCC(C)COC(=O)C=C

Data Sources

EPA CompTox (DSSTox) · DTXSID8029367Retrieved 2026-04-06
PubChem · compound 162070Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

2-Propenoic acid, 2-methylbutyl ester (CAS 44914-03-6) https://chemicalindependence.com/chemical/44914-03-6/ EPA CompTox (DSSTox): DTXSID8029367. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8029367 PubChem: 162070. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/162070 EPA Chemical Data Reporting: 44914-03-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 44914-03-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291612 for CAS 44914-03-6. Reporting year: 2024. https://usatrade.census.gov/