Description

Ethyldienedione CAS NO 20799-05-7 is a specialized organic chemical compound, also known as diethyl ketene dimer, valued for its unique reactivity as a ketene derivative. This compound serves as a critical building block and reactive intermediate in advanced organic synthesis, enabling the formation of complex molecular structures. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and fine chemical sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly for constructing β-lactam and other heterocyclic frameworks.
• Agrochemical Synthesis: Serves as a key precursor in the production of advanced herbicides, fungicides, and plant growth regulators.
• Polymer Modification: Acts as a reactive monomer or cross-linking agent for modifying polymer backbones to impart specific thermal or mechanical properties.
• Fine Chemical Production: Employed in the manufacture of dyes, pigments, and specialty chemicals requiring precise ketene-based chemistry.
• Academic & Industrial R&D: Utilized in research laboratories for methodological development and exploring new reaction pathways in synthetic organic chemistry.

Basic Information

Product Name	Ethyldienedione
CAS No.	20799-05-7
Molecular Formula	C6H8O2
Molecular Weight	112.13 g/mol
Synonyms	Diethyl Ketene Dimer; 2,2,4,4-Tetramethyl-1,3-cyclobutanedione; Diketene, Diethyl-; 1,3-Cyclobutanedione, 2,2,4,4-tetramethyl-; Tetramethylcyclobutanedione; Ethyl Diketoethylene; Ethyl Ketene Dimer
EINECS	Contact for details

Quality Control

Our Ethyldienedione is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and spectroscopic identification, to ensure it meets the high standards required for research and industrial synthesis. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming critical parameters such as assay, identity, and impurity profile.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. Due to its reactive nature, it is recommended to store under an inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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