Butanoic acid, 3-oxo-, 1-methylethyl ester

CAS 542-08-5

Companies reported imports and no US production of this chemical to EPA for 2023.

US productionZero

Import value, 2024$65M

Import volume40.6K lb

Import dependency100%

Top sourceChina 20%

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

Butanoic acid, 3-oxo-, 1-methylethyl ester · US import value by year

2013: $59M · Peak 2022: $93M · 2024: $65M · 2025: $69M

Where It Comes From

Customs basis: HS 291830 · basket

EPA reports by year

2023: US production Zero · Imports 40.6K lb
2019: US production Zero · Imports 40.6K lb

These shares come from HS customs code 291830, which covers 98 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 20%ChinaIN 19%IndiaIT 19%ItalyCH 15%SwitzerlandJP 15%Japan

Netherlands
Ukraine
United Kingdom
New Zealand
Taiwan
Malaysia
Belgium
Madagascar
South Korea
Israel

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.

Arxada

Why It Matters

Sectors

Paper & Printing

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

•Intermediate in Printing Ink ManufacturingProcessing as a reactant

Vendor Pricing

$0.05/gSigma-Aldrich (Rush Stock)

CountryGermany

Pack$10478.07 / 230 kg

Purity99%

Vendors21 available

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

20 more vendors

Vendor	Country	$/g	Pack	Purity
Sigma-Aldrich	Germany	$0.05	230 kg	99%
Aaron Chemicals LLC	Hong Kong	$0.14	500 g	97%
Angene Chemical	China → Hong Kong	$0.15	500 g	97%
A2B Chem LLC	United States	$0.24	500 g	97%
Combi-Blocks, Inc.	United States	$0.25	1 kg	97%
AA BLOCKS	United States	$0.28	1 kg	98%
BLD Pharmatech GmbH	Germany	$0.31	500 g	98%
BLD Pharmatech Ltd.	China	$0.31	500 g	98%
BLD Pharmatech Co., Limited	United States	$0.34	500 g	98%
Ambeed, Inc.	United States	$0.34	500 g	98%
AK Scientific Specialized	United States	$0.36	500 g	98%
MedChemExpress MCE	Sweden	$0.38	500 g	—
AK Scientific, Inc.	United States	$0.48	500 g	99%
Angene International Limited	United States	$0.62	500 g	98%
AstaTech, Inc	United States	$1.41	100 g	95%
Interbioscreen	Hong Kong	$10.00	10 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%
Angene	China → Hong Kong	$4266.67	30 mg	97%

Chemical Identity

CAS542-08-5

PubChem CID68329

DTXSIDDTXSID7060253

FormulaC7H12O3

Mol. Weight144.17 g/mol

SMILESCC(C)OC(=O)CC(=O)C

Data Sources

EPA CompTox (DSSTox) · DTXSID7060253Retrieved 2026-04-06
PubChem · compound 68329Retrieved 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

Butanoic acid, 3-oxo-, 1-methylethyl ester (CAS 542-08-5) https://chemicalindependence.com/chemical/542-08-5/ EPA CompTox (DSSTox): DTXSID7060253. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7060253 PubChem: 68329. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/68329 EPA Chemical Data Reporting: 542-08-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 542-08-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291830 for CAS 542-08-5. Reporting year: 2024. https://usatrade.census.gov/