Description

Diethyl Ethylmalonate is a versatile diester compound widely used as a key synthetic building block in organic chemistry. Its primary value lies in its ability to undergo efficient malonic ester synthesis, enabling the controlled introduction of alkyl groups to construct complex carboxylic acid derivatives and heterocycles. This makes it an essential intermediate for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A crucial starting material for the synthesis of various active pharmaceutical ingredients (APIs), including barbiturates and other nitrogen-containing heterocycles.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and fungicides, where it serves as a precursor for specific acid and ester functionalities.
• Fine Chemical Production: Employed in the manufacture of flavors, fragrances, dyes, and other specialty organic compounds requiring precise molecular construction.
• Organic Synthesis Research: A fundamental reagent in academic and industrial R&D labs for C-C bond formation and the synthesis of complex target molecules.
• Polymer Modifiers: Can be used in the synthesis of monomers or additives designed to modify the properties of polymers and resins.

Basic Information

Product Name	Diethyl Ethylmalonate
CAS No.	133-13-1
Molecular Formula	C9H16O4
Molecular Weight	188.22 g/mol
Synonyms	Ethylmalonic Acid Diethyl Ester; Diethyl Ethylpropanedioate; Ethyl Malonic Ester; Ethyl Diethyl Malonate; Propanedioic Acid, Ethyl-, Diethyl Ester; Ethylmethanetricarboxylic Acid Diethyl Ester; DEM
EINECS	205-101-5

Quality Control

Our Diethyl Ethylmalonate is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC, HPLC, and NMR to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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, strong acids, and strong bases. Recommended storage temperature is between 15°C and 25°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (n20D)	1.413 - 1.417
Density (g/mL, 20°C)	1.010 - 1.030
Water Content (KF)	≤ 0.2%

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