2-Methylpropanoic acid

CAS 79-31-2

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$63M

Top sourceChina 22%

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 291560 · basket

EPA reports by year

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

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

Country of origin for US imports, from Census customs data (2024).

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

Ireland
South Korea
United Arab Emirates
Russia
Ukraine
Israel
Brazil
Canada

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.

Eastman Chemical

EPA-registered importers (2)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Fci

Oq Chemicals

Why It Matters

Sectors

AgricultureMetals & MiningCore 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

Used in 3 sectors as 1 functional role.

•Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant
•Intermediate in Miscellaneous Manufacturing (100%)Processing as a reactant
•Intermediate in Agriculture, Forestry, Fishing and HuntingProcessing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.02/gSigma-Aldrich (Rush Stock)

CountryGermany

Pack$431.09 / 25 kg

Purity99%

Vendors13 available

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

12 more vendors

Vendor	Country	$/g	Pack	Purity
Sigma-Aldrich	Germany	$0.02	25 kg	99%
Key Organics Ltd.	United Kingdom	$12.80	10 g	95%
Interbioscreen	Hong Kong	$24.00	10 g	95%
A2B Chem LLC	United States	$48.00	1 g	99.5%
AA BLOCKS	United States	$60.00	1 g	99.5%
HTS Biochemie Innovationen	Germany	$170.00	5 g	95%
Labotest KG	Germany	$217.80	5000 mg	90%
Otava, Ltd.	Ukraine	$2280.00	50 mg	95%
Otava, Ltd. (2 weeks)	Ukraine	$2724.00	50 mg	95%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
Asinex	Netherlands	$8651.50	100 mg	90%
TimTec, LLC (back-ordered)	United States	$32000.00	15 mg	94%

Chemical Identity

CAS79-31-2

PubChem CID6590

DTXSIDDTXSID4021636

FormulaC4H8O2

Mol. Weight88.11 g/mol

SMILESCC(C)C(=O)O

Data Sources

EPA CompTox (DSSTox) · DTXSID4021636Retrieved 2026-04-06
PubChem · compound 6590Retrieved 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-Methylpropanoic acid (CAS 79-31-2) https://chemicalindependence.com/chemical/79-31-2/ EPA CompTox (DSSTox): DTXSID4021636. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4021636 PubChem: 6590. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6590 EPA Chemical Data Reporting: 79-31-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 79-31-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291560 for CAS 79-31-2. Reporting year: 2024. https://usatrade.census.gov/