Description

Cyclopropanecarbonyl Chloride, 3-(2-Chloroethenyl)-2,2-Dimethyl-, [1Alpha,3Beta(E)]- (9Ci) is a specialized, high-purity synthetic intermediate featuring a reactive acid chloride group and a chlorovinyl-substituted cyclopropane ring. This unique molecular architecture makes it a critical building block for the synthesis of complex, biologically active molecules in advanced research and development. It is primarily sought after by pharmaceutical and agrochemical R&D teams for constructing novel active ingredients, including pyrethroid-like compounds and other fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds with cyclopropane motifs.
• Agrochemical Synthesis: Building block for developing advanced insecticides and pesticides, especially in the creation of pyrethroid analogs.
• Chemical Research: Valuable reagent in academic and industrial laboratories for exploring new synthetic methodologies and creating complex molecular libraries.
• Fine Chemical Production: Used in the manufacture of specialty chemicals, flavors, and fragrances requiring specific stereochemistry.
• Material Science: Potential monomer or cross-linking agent in the development of specialized polymers with unique properties.

Basic Information

Product Name	Cyclopropanecarbonyl Chloride, 3-(2-Chloroethenyl)-2,2-Dimethyl-, [1Alpha,3Beta(E)]- (9Ci)
CAS No.	61914-51-0
Molecular Formula	C8H10Cl2O
Molecular Weight	193.07 g/mol
Synonyms	(1R,3S)-3-[(E)-2-Chloroethenyl]-2,2-dimethylcyclopropanecarbonyl chloride; (1R,3S)-3-[(E)-2-Chloroethenyl]-2,2-dimethylcyclopropanecarboxylic acid chloride; trans-3-(2-Chlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid chloride; (E)-(1R,3S)-3-(2-Chlorovinyl)-2,2-dimethylcyclopropanecarbonyl chloride; 3-(2-Chloroethenyl)-2,2-dimethylcyclopropanecarbonyl chloride, (1R,3S)-rel-; A key intermediate for synthetic pyrethroids.
EINECS	Contact for details

Quality Control

Our Cyclopropanecarbonyl Chloride, 3-(2-Chloroethenyl)-2,2-Dimethyl-, [1Alpha,3Beta(E)]- (9Ci) is produced under strict quality management systems. Every batch undergoes rigorous analytical testing including HPLC, GC, and NMR to confirm identity, purity, and isomeric composition, ensuring it meets the exacting standards required for advanced synthetic applications. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and must be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, alcohols, and amines.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC/GC)	≥ 97.0%
Isomeric Purity (GC/HPLC)	≥ 98.0% (1R,3S-E isomer)
Water Content (KF)	≤ 0.5%

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