Description

Diethyl Malonate is a versatile organic ester widely recognized as a key building block in chemical synthesis. Its primary value lies in its active methylene group, which makes it an essential reagent for the production of pharmaceuticals, agrochemicals, and fine chemicals. This compound is particularly critical for manufacturers in the pharmaceutical, flavor & fragrance, and polymer industries seeking reliable intermediates for condensation and alkylation reactions.

Application

• Pharmaceutical Synthesis: A crucial starting material and intermediate in the production of barbiturates, vitamins (B1, B6), and various active pharmaceutical ingredients (APIs).
• Agrochemical Production: Used in the synthesis of pesticides, herbicides, and plant growth regulators.
• Flavor & Fragrance Industry: Serves as a precursor for artificial flavoring agents and aroma compounds.
• Fine Chemical & Dye Manufacturing: Employed in the synthesis of complex organic molecules, including dyes and pigments.
• Polymer & Resin Modifiers: Acts as a cross-linking agent and modifier in specialty polymer formulations.
• Organic Synthesis Reagent: Utilized in classic reactions like the malonic ester synthesis for preparing α-substituted carboxylic acids and derivatives.

Basic Information

Product Name	Diethyl Malonate
CAS No.	105-53-3
Molecular Formula	C7H12O4
Molecular Weight	160.17 g/mol
Synonyms	Malonic Acid Diethyl Ester; Diethyl Propanedioate; Ethyl Malonate; DEM; Diethyl Methanedicarboxylate; Propanedioic Acid Diethyl Ester; Malonic Ester
EINECS	203-305-9

Quality Control

Our Diethyl Malonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets the highest standards of purity and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We can support requirements for various grades, including industrial and more refined standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as strong oxidizing agents, bases, and acids. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F).

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0%
Refractive Index (n20/D)	1.413 - 1.415
Density (g/mL at 20°C)	1.050 - 1.055
Water Content (KF)	≤ 0.10%
Acidity (as Malonic Acid)	≤ 0.05%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.