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Propanoic acid, 2-methyl-3-oxo-, methyl ester

CAS 51673-64-4

Molecular structure of 51673-64-4
US productionNot reported
Import value, 2024$65M
Top sourceChina 20%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

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

Where It Comes From

Customs basis: HS 291830 · basket

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
CN 20%ChinaIN 19%IndiaIT 19%ItalyCH 15%SwitzerlandJP 15%Japan

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Vendor Pricing

$297.80/gAngene Chemical
CountryChina (registered: Hong Kong)
Pack$1489.00 / 5 g
Purity95%
Vendors7 available

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

6 more vendors
VendorCountry$/gPackPurity
Aaron Chemicals LLCHong Kong$298.605 g95%
AldlabUnited States$417.452.5 g95%
AstaTech, IncUnited States$795.001 g95%
A2B Chem LLCUnited States$820.001 g95%
AA BLOCKSUnited States$909.001 g95%
Angene International LimitedUnited States$1290.001 g95%

Chemical Identity

CAS51673-64-4
PubChem CIDNot recorded
DTXSIDDTXSID10885966
FormulaC5H8O3
Mol. Weight116.116 g/mol
SMILESCOC(=O)C(C)C=O

Data Sources

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Brief citations

Propanoic acid, 2-methyl-3-oxo-, methyl ester (CAS 51673-64-4) https://chemicalindependence.com/chemical/51673-64-4/ EPA TSCA Inventory: CAS 51673-64-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291830 for CAS 51673-64-4. Reporting year: 2024. https://usatrade.census.gov/