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Diethyl ethylmalonate

Also known as: diethyl 2-ethylpropanedioate, Ethylmalonic Acid Diethyl Ester, Ethylethylmalonate, Propanedioic acid, ethyl-, diethyl ester, Malonic acid, ethyl-, diethyl ester, Diethyl 2-ethylmalonate

Diethyl ethylmalonate (CAS 133-13-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H16O4 and a molecular weight of 188.221 g/mol. Key properties include a melting point of 0°C, a boiling point of 211.7±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 88.3±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
133-13-1
Jingsj CID
J-30386-6
Molecular Formula
C9H16O4
Molecular Weight
188.221 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point0°C
Boiling Point211.7±0.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point88.3±0.0 °C
Exact Mass188.104858
PSA52.60000
LogP1.58
Vapor Pressure0.2±0.4 mmHg at 25°C
Refractive Index1.426
Additional Propertyimmiscible

Customs & Trade Information

HS Code2917190090
Summary2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Diethyl ethylmalonate?

The CAS number of Diethyl ethylmalonate is 133-13-1.

What are the molecular formula and molecular weight of Diethyl ethylmalonate?

Diethyl ethylmalonate has molecular formula C9H16O4 and molecular weight 188.221 g/mol.

What are the upstream and downstream products of Diethyl ethylmalonate?

For Diethyl ethylmalonate, Upstream Products: Iodoethane, Diethyl malonate, Bromoethane; Downstream Products: Butanoic acid, 2-methylene-, urazole, Cyanuric 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 ethylmalonate (CAS 133-13-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30386-6 (accessed 2026-11-09).

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