Description

Cyclopropanecarboxylic Acid, 2-Ethenyl-, Ethyl Ester, (1S,2S)- (9Ci) is a high-purity, stereochemically defined chiral building block of significant value in advanced organic synthesis. This compound matters for its role as a key intermediate in the development of active pharmaceutical ingredients (APIs) and complex agrochemicals, where its specific stereochemistry is critical for biological activity. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries seeking to construct complex molecular architectures with high enantiomeric purity.

Application

• Pharmaceutical Intermediate: A crucial chiral synthon for the synthesis of novel drug candidates, particularly in central nervous system (CNS) and antiviral research.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides where stereochemistry influences efficacy and environmental profile.
• Asymmetric Catalysis Research: Serves as a substrate or ligand precursor in the development of new catalytic systems for stereoselective transformations.
• Fine Chemical Manufacturing: Employed in the multi-step synthesis of specialty chemicals, flavors, and fragrances requiring specific three-dimensional structure.
• Material Science Precursor: Potential use in the synthesis of monomers for specialized polymers with unique thermal or mechanical properties.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 2-Ethenyl-, Ethyl Ester, (1S,2S)- (9Ci)
CAS No.	240404-80-2
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	(1S,2S)-2-Vinylcyclopropanecarboxylic acid ethyl ester; Ethyl (1S,2S)-2-vinylcyclopropanecarboxylate; (1S,2S)-2-Ethenylcyclopropanecarboxylic Acid Ethyl Ester; trans-2-Vinylcyclopropanecarboxylic acid ethyl ester; Chiral vinylcyclopropane ester; Cyclopropane ethyl ester derivative; (1S,2S)-VCCEe
EINECS	Contact for details

Quality Control

Our production of Cyclopropanecarboxylic Acid, 2-Ethenyl-, Ethyl Ester, (1S,2S)- (9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and high enantiomeric purity. Quality is verified through advanced analytical techniques including chiral HPLC, GC, and NMR spectroscopy. Certificates of Analysis (COA) detailing identity, purity, enantiomeric excess, and impurity profiles are provided with each shipment to support your regulatory and R&D requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage under inert atmosphere, please contact us for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.