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Diethyl 2-oxopentanedioate

Also known as: Diethyl oxalpropionate, 2-Ketoglutaric acid diethyl ester, 2-Oxoglutaric acid diethyl ester, 2-Oxopentanedioic acid diethyl ester, Pentanedioic acid, 2-oxo-, 1,5-diethyl ester, Pentanedioic acid, 2-oxo-, diethyl ester, UNII-D9H7KZF90H, diethyl 2-ketoglutarate, diethyl 2-oxo-glutarate, diethyl 2-oxoglutarate, ethyl 4-ethoxycarbonyl-2-oxobutanoate, alpha-Ketoglutaric acid diethyl ester, Glutaric acid, 2-oxo-, diethyl ester

Diethyl 2-oxopentanedioate (CAS 5965-53-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H14O5 and a molecular weight of 202.204 g/mol. Key properties include a boiling point of 283.0±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 121.0±22.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5965-53-7
Jingsj CID
J-1307004-7
Molecular Formula
C9H14O5
Molecular Weight
202.204 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point283.0±23.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point121.0±22.7 °C
Exact Mass202.084122
PSA69.67000
LogP0.85
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.435

Customs & Trade Information

HS Code2918300090
Summary2918300090 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 Diethyl 2-oxopentanedioate?

The CAS number of Diethyl 2-oxopentanedioate is 5965-53-7.

What are the molecular formula and molecular weight of Diethyl 2-oxopentanedioate?

Diethyl 2-oxopentanedioate has molecular formula C9H14O5 and molecular weight 202.204 g/mol.

What are the upstream and downstream products of Diethyl 2-oxopentanedioate?

For Diethyl 2-oxopentanedioate, Upstream Products: 2-Ketoglutaric acid, Ethanol, Ethyl 2-nitropropionate; Downstream Products: 3-(2,5-dioxoimidazolidin-4-yl)propanoic acid, ethyl (2R)-5-oxooxolane-2-carboxylate, 2-Ketoglutaric acid.

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

Last updated:

How to cite: Jingsj. "Diethyl 2-oxopentanedioate (CAS 5965-53-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1307004-7 (accessed 2026-11-09).

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