Methyl vinyl ketone

CAS 78-94-4

EPA’s 2019 records show zero U.S. production of this chemical.

US productionZero

Import value, 2024$39M

Top sourceChina 33%

EPA lists this chemical for 2019 but publishes zero or no volume for both production and imports.

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 291419 · basket

EPA reports by year

2019: US production Zero · Imports Zero

These shares come from HS customs code 291419, which covers 131 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 33%ChinaDE 29%GermanyIN 26%IndiaGB 3%United KingdomJP 2%Japan

Netherlands
Italy
Brazil
South Africa
Turkey
Moldova
Canada
Armenia
Slovakia
Finland
Hong Kong
Mexico
Ukraine

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.

Weylchem Us

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

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

Vendor Pricing

$8.72/gA2B Chem LLC (1 week)

CountryUnited States

Pack$218.00 / 25 g

PurityNot recorded

Vendors8 available

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

7 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS (1 week)	United States	$9.00	25 g	—
Interbioscreen	Hong Kong	$34.00	10 g	95%
Sigma-Aldrich (Rush Stock)	Germany	$43.96	10 g	—
Sigma-Aldrich	Germany	$43.96	10 g	—
Aaron Chemicals LLC	Hong Kong	$54.10	10 g	—
Otava, Ltd.	Ukraine	$2280.00	50 mg	95%
Otava, Ltd. (2 weeks)	Ukraine	$2724.00	50 mg	95%

Chemical Identity

CAS78-94-4

PubChem CID6570

DTXSIDDTXSID3025671

FormulaC4H6O

Mol. Weight70.09 g/mol

SMILESCC(=O)C=C

Data Sources

EPA CompTox (DSSTox) · DTXSID3025671Retrieved 2026-04-06
PubChem · compound 6570Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Methyl vinyl ketone (CAS 78-94-4) https://chemicalindependence.com/chemical/78-94-4/ EPA CompTox (DSSTox): DTXSID3025671. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3025671 PubChem: 6570. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6570 EPA Chemical Data Reporting: 78-94-4. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 78-94-4. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291419 for CAS 78-94-4. Reporting year: 2024. https://usatrade.census.gov/