Diethyl malonate
Description
Diethyl malonate (CAS 105-53-3), also known by the abbreviation DEM or as malonic ester, is a diester compound used as a synthetic intermediate and flavoring agent across food, fragrance, and specialty chemical manufacturing.
Its reactivity at the active methylene group makes it a foundational building block for producing pharmaceuticals, agrochemicals, and aroma compounds at industrial scale. In flavor and fragrance production, DEM functions as a precursor to fruity aroma compounds.
The material carries FEMA 2375 status for direct use as a flavoring ingredient. Agrochemical manufacturers rely on it as a key intermediate in synthesizing active ingredients including certain herbicides and insecticides.
In pharmaceutical synthesis, it serves as a carbon-chain extender in the production of barbiturates, amino acids, and other active pharmaceutical ingredients. Personal care formulators use it as a carrier solvent and reactive intermediate.
Diethyl malonate is supplied as a clear liquid in drum and IBC quantities, with bulk tanker options available for high-volume buyers. Standard commercial grades include technical and food-grade (FCC) specifications.
Purity levels of 99% and above are typical for synthesis-grade material supplied to pharmaceutical and agrochemical customers. Our logistics network ensures reliable delivery of high-purity esters for diverse industrial applications.
Physical Properties
| Melting Point | -50 °C |
| Boiling Point | 199 °C |
| Density | 1.017336 g/cm³ @ Temp: 55.00 °C |
| Flash Point | 212 °F |
| Appearance | colourless liquid |
| Color | colourless liquid |
| Odor | Sweet ester odor |
| Form | Liquid |
| Water Solubility | Miscible with ethyl alcohol, ether, chloroform and benzene. Slightly miscible with water. |
| Vapor Pressure | 1 mm Hg ( 40 °C) |
| Refractive Index | n 20/D 1.413(lit.) |
| Log P | 0.96 at 20℃ |
Safety & Handling (Learn More)
Trade & Regulatory
| HS Code | 29171910 |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 1 |
Documentation
Other Names
Diethyl propanedioate|Ethyl malonate|Malonic ester|Propanedioic acid, diethyl ester|1,3-diethyl propanedioate|Carbethoxyacetic ester|Malonic acid, diethyl ester|Propanedioic acid, 1,3-diethyl ester|DEM
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