Description

Diethyl [2-(2,2,3-Trimethyl-3-Cyclopenten-1-Yl)Ethylidene]Malonate is a high-purity chemical intermediate, specifically a malonate derivative with a complex terpenoid-like structure. This compound is valued for its role as a versatile building block in advanced organic synthesis, enabling the creation of complex molecular architectures. It is primarily sought after by R&D chemists and manufacturers in the fragrance, flavor, and pharmaceutical industries for the development of novel compounds and fine chemicals.

Application

• Fragrance & Flavor Synthesis: A key intermediate for creating novel woody, amber, and musky aroma chemicals due to its cyclopentene backbone.
• Pharmaceutical Intermediates: Serves as a crucial building block in the synthesis of complex active pharmaceutical ingredients (APIs) and drug candidates.
• Fine Chemical Production: Used in the manufacture of specialty chemicals requiring specific terpenoid or sterically hindered structures.
• Agrochemical Research: Employed in the development of new active ingredients for crop protection products.
• Organic Synthesis & Catalysis: Acts as a substrate or ligand precursor in asymmetric synthesis and catalytic reactions.
• Material Science Research: Investigated as a monomer or additive for creating polymers with unique properties.

Basic Information

Product Name	Diethyl [2-(2,2,3-Trimethyl-3-Cyclopenten-1-Yl)Ethylidene]Malonate
CAS No.	85665-70-9
Molecular Formula	C₁₇H₂₆O₄
Molecular Weight	294.39 g/mol
Synonyms	Diethyl (2-((2,2,3-Trimethyl-3-cyclopenten-1-yl)ethylidene))malonate; 2-(2,2,3-Trimethyl-3-cyclopenten-1-yl)ethylidene Malonic Acid Diethyl Ester; Ethyl (2-((2,2,3-Trimethyl-3-cyclopenten-1-yl)ethylidene))malonate; Malonic acid, (2-((2,2,3-trimethyl-3-cyclopenten-1-yl)ethylidene))-, diethyl ester; CAS 85665-70-9
EINECS	Contact for details

Quality Control

Our Diethyl [2-(2,2,3-Trimethyl-3-Cyclopenten-1-Yl)Ethylidene]Malonate is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container should be kept tightly sealed to prevent moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	Contact for details
Specific Gravity (20°C)	Contact for details

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