ethyl 3-(3-methylphenyl)-3-oxopropanoate

Also known as: ethyl (3-methylbenzoyl)acetate, ethyl 3-oxo-3-(m-tolyl)propanoate, ethyl 3-oxo-3-m-tolylpropanoate, ethyl 3-(3-methylphenyl)-3-oxopropionic acid ethyl ester, ethyl m-toluoylacetate, ethyl m-methylbenzoylacetate, benzenepropanoic acid, 3-methyl-β-oxo-, ethyl ester, 3-oxo-3-(3-methylphenyl)propionic acid ethyl ester, 3-oxo-3-m-tolyl-propionic acid ethyl ester, ethyl 2-(3-methylbenzoyl)acetate

ethyl 3-(3-methylphenyl)-3-oxopropanoate (CAS 33166-79-9) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C12H14O3 and a molecular weight of 206.238 g/mol. Key properties include a boiling point of 293.1±15.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 125.4±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 33166-79-9
Jingsj CID: J-8474-2
Molecular Formula: C₁₂H₁₄O₃
Molecular Weight: 206.238 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	293.1±15.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	125.4±20.4 °C
Exact Mass	206.094299
PSA	43.37000
LogP	2.33
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.509

Customs & Trade Information

HS Code	2918300090
Summary	2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of ethyl 3-(3-methylphenyl)-3-oxopropanoate?

The CAS number of ethyl 3-(3-methylphenyl)-3-oxopropanoate is 33166-79-9.

What are the molecular formula and molecular weight of ethyl 3-(3-methylphenyl)-3-oxopropanoate?

ethyl 3-(3-methylphenyl)-3-oxopropanoate has molecular formula C12H14O3 and molecular weight 206.238 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "ethyl 3-(3-methylphenyl)-3-oxopropanoate (CAS 33166-79-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8474-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.