Description

Cyclopropanecarboxylic Acid, 2-Ethenyl-2-Methyl-, Methyl Ester, trans- (9Ci) is a specialized organic ester building block featuring a cyclopropane ring and a vinyl group, offering unique steric and electronic properties for advanced synthesis. This compound is valued for its role as a key chiral intermediate in the development of complex molecules, particularly in the pharmaceutical and agrochemical sectors. Industrial R&D chemists and process engineers require this high-purity intermediate for constructing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A critical chiral synthon for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in the development of central nervous system (CNS) and antiviral drugs.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where the cyclopropane moiety contributes to biological activity and stability.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands in asymmetric catalysis and organometallic chemistry.
• Flavor and Fragrance Industry: Potential use as an intermediate for synthesizing unique aroma chemicals with complex, woody, or green notes.
• Material Science Research: Employed in the development of specialty monomers for polymers with tailored thermal and mechanical properties.
• Academic and Industrial R&D: A valuable tool for methodological studies in organic synthesis, including cyclopropanation and cross-coupling reactions.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 2-Ethenyl-2-Methyl-, Methyl Ester, trans- (9Ci)
CAS No.	96358-61-1
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	trans-2-Ethenyl-2-methylcyclopropanecarboxylic acid methyl ester; Methyl trans-2-vinyl-2-methylcyclopropanecarboxylate; (1R,2S)-rel-2-Ethenyl-2-methylcyclopropanecarboxylic acid methyl ester; 2-Methyl-2-vinylcyclopropanecarboxylic acid methyl ester, trans-; Methyl (1R,2S)-2-ethenyl-2-methylcyclopropanecarboxylate; Cyclopropanecarboxylic acid, 2-ethenyl-2-methyl-, methyl ester, (1R,2S)-rel-; (1R,2S)-2-Ethenyl-2-methylcyclopropanecarboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our production of Cyclopropanecarboxylic Acid, 2-Ethenyl-2-Methyl-, Methyl Ester, trans- (9Ci) adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including chiral purity analysis by GC or HPLC, to ensure compliance with exacting customer specifications. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with each shipment to guarantee traceability and support your regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from strong bases and heat sources. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and maintain product integrity. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Chiral Purity (ee)	≥ 99.0%
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.