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Diethyl 2-formylmalonate

Also known as: Diethyl formylmalonate, Diethyl α-formylmalonate, Diethyl a-formylmalonate, Diethyl -forMylMalonate, diethyl2-forMylMalonate, Propanedioic acid, 2-formyl-, 1,3-diethyl ester, Propanedioic acid, 2-formyl-, diethyl ester, 1,3-Diethyl 2-formylpropanedioate

Diethyl 2-formylmalonate (CAS 33142-25-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H12O5 and a molecular weight of 188.178 g/mol. Key properties include a boiling point of 232.0±0.0 °C at 760 mmHg, a density of 1.1±0.0 g/cm3 and a flash point of 93.9±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
33142-25-5
Jingsj CID
J-1413796-3
Molecular Formula
C8H12O5
Molecular Weight
188.178 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point232.0±0.0 °C at 760 mmHg
Density1.1±0.0 g/cm3
Flash Point93.9±0.0 °C
Exact Mass188.068466
PSA69.67000
LogP0.39
Vapor Pressure0.1±0.0 mmHg at 25°C
Refractive Index1.431

Frequently Asked Questions

What is the CAS number of Diethyl 2-formylmalonate?

The CAS number of Diethyl 2-formylmalonate is 33142-25-5.

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

Diethyl 2-formylmalonate has molecular formula C8H12O5 and molecular weight 188.178 g/mol.

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

For Diethyl 2-formylmalonate, Downstream Products: Triethyl 1,3,5-benzenetricarboxylate, Ethyl 4-oxo-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate, Formic 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-formylmalonate (CAS 33142-25-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1413796-3 (accessed 2026-11-09).

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