Propionic acid

Drug ingredient

CAS 79-09-4

This drug ingredient has classified U.S. production volumes. EPA withholds the number 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$30M

Top sourceCanada 27%

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 291550 · basket

EPA reports by year

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

These shares come from HS customs code 291550, which covers 61 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).

CA 27%CanadaCN 14%ChinaIT 13%ItalyMX 11%MexicoIN 10%India

Slovakia
Sweden
Argentina
Switzerland

EPA-registered manufacturers (8)

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

Basf Se · DE Germany

Basf

Dow Chemical

Eastman Chemical

Hawkins

Show all 8

Ineos Acetyls Chemicals Texas City Texas

Lyondell Chemical

Tri-Chem Industries

Domestic parents -- activity not disclosed (2)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Emery Oleochemicals

Polyventive

EPA-registered importers (1)

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

Icc Industries

1 FDA-registered drug labeler

Energique, Inc.

Why It Matters

Sectors

HealthAgricultureFoodConstructionPlastics & RubberPaints & CoatingsCore Chemicals

Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

•Gut Brain Spectrum

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 6 sectors as 7 functional roles.

•pH regulating agent in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (100%)Processing—incorporation into formulation, mixture, or reaction product
•Solvent in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Lubricating agent in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
•Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant
•Intermediate in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
•Binder in Agriculture, Forestry, Fishing and Hunting (100%)Processing—incorporation into formulation, mixture, or reaction product
•Intermediate in Food, beverage, and tobacco product manufacturing (20%)Processing as a reactant
•Preservative in Food, beverage, and tobacco product manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
•pH regulating agent in All Other Basic Organic Chemical Manufacturing (5%)Processing as a reactant
•Soil amendments (fertilizers) in Agriculture, Forestry, Fishing and Hunting (90%)Processing as a reactant

Vendor Pricing

$0.02/gSigma-Aldrich (Rush Stock)

CountryGermany

Pack$378.58 / 25 kg

Purity99.5%

Vendors14 available

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

13 more vendors

Vendor	Country	$/g	Pack	Purity
Sigma-Aldrich	Germany	$0.02	25 kg	99.5%
ALFA AESAR	Germany	$0.03	2.5 kg	99%
A2B Chem LLC	United States	$0.04	500 g	98%
AA BLOCKS	United States	$0.04	500 g	98%
Fluorochem UK	United Kingdom	$0.11	500 g	89%
MedKoo Biosciences, Inc	United States	$0.20	2.5 kg	98%
Combi-Blocks, Inc.	United States	$0.25	1 kg	98%
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

CAS79-09-4

PubChem CID1032

DTXSIDDTXSID8025961

FormulaC3H6O2

Mol. Weight74.08 g/mol

SMILESCCC(=O)O

Data Sources

EPA CompTox (DSSTox) · DTXSID8025961Retrieved 2026-04-06
PubChem · compound 1032Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Propionic acid (CAS 79-09-4) https://chemicalindependence.com/chemical/79-09-4/ EPA CompTox (DSSTox): DTXSID8025961. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8025961 PubChem: 1032. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/1032 EPA Chemical Data Reporting: 79-09-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting FDA National Drug Code directory: CAS 79-09-4. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 291550 for CAS 79-09-4. Reporting year: 2024. https://usatrade.census.gov/