Description

Diethyl trans-4-Methylene-1,2-Cyclopentanedicarboxylate is a high-purity, specialized diester compound valued as a versatile synthetic intermediate in advanced organic chemistry. Its unique cyclopentane structure with a methylene group and trans-configured ester functionalities makes it a critical building block for constructing complex molecular architectures. This product is essential for research and development chemists in the pharmaceutical, agrochemical, and advanced materials sectors seeking to develop novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly for constructing complex carbocyclic frameworks found in bioactive molecules.
• Agrochemical Synthesis: Used in the development of new pesticides and herbicides, where its functionalized cyclopentane core can be incorporated into active ingredients.
• Advanced Material Research: Acts as a monomer or cross-linking agent in the development of specialty polymers, resins, and liquid crystals with tailored properties.
• Fine Chemical Production: Employed in custom synthesis and contract manufacturing for producing high-value, low-volume specialty chemicals.
• Academic & Industrial R&D: A valuable reagent for methodological development in organic synthesis, including studies on ring-forming reactions and stereoselective transformations.
• Fragrance & Flavor Chemistry: Potential use as an intermediate for synthesizing specific ester-based aroma compounds, subject to purity and regulatory compliance.

Basic Information

Item	Details
Product Name	Diethyl trans-4-Methylene-1,2-Cyclopentanedicarboxylate
CAS No.	63649-25-2
Molecular Formula	C12H18O4
Molecular Weight	226.27 g/mol
Synonyms	trans-4-Methylenecyclopentane-1,2-dicarboxylic Acid Diethyl Ester; Diethyl 4-Methylenecyclopentane-1,2-dicarboxylate; 1,2-Cyclopentanedicarboxylic Acid, 4-Methylene-, Diethyl Ester, trans-; 4-Methylenecyclopentane-1,2-dicarboxylic Acid Diethyl Ester; Ethyl 4-Methylene-1,2-cyclopentanedicarboxylate
EINECS	Contact for details

Quality Control

Our Diethyl trans-4-Methylene-1,2-Cyclopentanedicarboxylate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific batch results are provided and available upon request, supporting compliance with research and cGMP guidelines where applicable.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. For long-term storage, consider maintaining the material under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Purity (GC Area %)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Specific Rotation	Contact for details

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