Description

Diethyl Methylmalonate is a high-purity organic ester compound, widely recognized as a versatile building block in fine chemical synthesis. Its value lies in its role as a key intermediate for introducing the methylmalonate moiety into complex molecular structures. This product is essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-quality raw materials for active ingredient development.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of various active pharmaceutical ingredients (APIs), including barbiturates and vitamin B1 (thiamine).
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and plant growth regulators where the malonate ester group is required.
• Fine Chemical Manufacturing: Serves as a building block for flavors, fragrances, and other specialty organic compounds.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the synthesis of specialized polymers and resins.
• Organic Synthesis Reagent: Employed in classic organic reactions such as the malonic ester synthesis for preparing substituted acetic acids and other carboxylic acid derivatives.

Basic Information

Product Name	Diethyl Methylmalonate
CAS No.	609-08-5
Molecular Formula	C8H14O4
Molecular Weight	174.19 g/mol
Synonyms	Methylmalonic Acid Diethyl Ester; Diethyl Methylpropanedioate; Diethyl 2-Methylmalonate; Ethyl Methylmalonate; Propanedioic acid, 2-methyl-, 1,3-diethyl ester; Methylmalonic ester
EINECS	210-185-6

Quality Control

Our Diethyl Methylmalonate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for each lot, detailing key parameters such as assay, identity, and impurity profiles. Our quality commitment aligns with cGMP principles where applicable, supporting our customers' regulatory and research requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. 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 to structure
Assay (GC)	≥ 98.0%
Refractive Index (n20/D)	1.413 - 1.417
Density (20°C)	1.020 - 1.050 g/mL
Water Content (KF)	≤ 0.5%

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