Description

Diethyl Ethylidenemalonate is a versatile malonate ester derivative, serving as a critical building block in advanced organic synthesis. Its reactive ethylidene and ester functionalities make it an invaluable precursor for constructing complex molecular architectures, particularly heterocyclic compounds and active pharmaceutical ingredients (APIs). This high-purity intermediate is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where precise chemical transformations are paramount.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of various heterocyclic compounds, including pyridines, pyrimidines, and quinolones, which are core structures in many APIs.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and fungicides, contributing to novel modes of action.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and functional materials requiring specific malonate-based frameworks.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the development of specialty polymers with tailored properties.
• Chemical Research: A valuable reagent in academic and industrial R&D for exploring new synthetic methodologies and creating compound libraries.
• Flavor and Fragrance Industry: Potential intermediate in the synthesis of certain aroma chemicals and flavoring agents.

Basic Information

Product Name	Diethyl Ethylidenemalonate
CAS No.	1462-12-0
Molecular Formula	C9H14O4
Molecular Weight	186.21 g/mol
Synonyms	Ethylidenemalonic Acid Diethyl Ester; Diethyl 2-Ethylidenemalonate; Ethylidene Malonic Ester; Propenyl Malonic Ester; Ethylidenepropanedioic Acid Diethyl Ester; Diethyl Ethylidenepropanedioate; (Ethoxycarbonyl)methylene Ethyl Malonate; 2-Ethylidenemalonic Acid Diethyl Ester
EINECS	215-963-3

Quality Control

Our Diethyl Ethylidenemalonate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography (GC/HPLC) and spectroscopy (IR, NMR), to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment. We adhere to cGMP principles where applicable to support our clients in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources, strong oxidizing agents, and strong bases. The product is moisture-sensitive; ensure containers are kept tightly sealed to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.430 - 1.435
Density (20°C)	1.05 - 1.10 g/mL

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