Description

Cyclopropanecarboxylic Acid, 1-Ethenyl-2-Ethoxy-, 1,1-Dimethylethyl Ester, trans- (9Ci) is a specialized, high-purity organic ester building block valued for its unique cyclopropane and vinyl ether functional groups. This compound is critical for advanced chemical synthesis, offering a versatile scaffold for constructing complex molecular architectures in pharmaceutical and agrochemical research. It is primarily sought after by R&D chemists and process development scientists working on novel active ingredients, fine chemicals, and material science applications where precise stereochemistry and functional group compatibility are paramount.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the research and development of new therapeutic agents, particularly in constructing constrained ring systems.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where the cyclopropane moiety can enhance biological activity and stability.
• Fine Chemical Manufacturing: Acts as a versatile building block for synthesizing specialty chemicals, flavors, and fragrances.
• Material Science Research: Investigated as a monomer or precursor for developing polymers with specific thermal or mechanical properties.
• Academic & Industrial R&D: Employed in methodological studies and catalysis research for developing new synthetic pathways.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 1-Ethenyl-2-Ethoxy-, 1,1-Dimethylethyl Ester, trans- (9Ci)
CAS No.	142038-40-2
Molecular Formula	C12H20O3
Molecular Weight	212.29 g/mol
Synonyms	trans-1-Ethenyl-2-ethoxycyclopropanecarboxylic acid tert-butyl ester; tert-Butyl trans-1-vinyl-2-ethoxycyclopropanecarboxylate; 1-Vinyl-2-ethoxycyclopropanecarboxylic acid tert-butyl ester, trans-; (1R,2R)-1-Ethenyl-2-ethoxycyclopropanecarboxylic acid 1,1-dimethylethyl ester; (1S,2S)-1-Ethenyl-2-ethoxycyclopropanecarboxylic acid 1,1-dimethylethyl ester; trans-tert-Butyl 1-vinyl-2-ethoxycyclopropanecarboxylate
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, 1-Ethenyl-2-Ethoxy-, 1,1-Dimethylethyl Ester, trans- (9Ci) is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting critical specifications. We support cGMP and ISO compliant production for advanced research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider maintaining under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Isomeric Purity (GC/HPLC)	≥ 98.0% trans-isomer
Water Content (KF)	≤ 0.5%

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