Description

Cyclopropanecarbonyl Chloride, 3-(Chloroethynyl)-2,2-Dimethyl- (9Ci) is a highly functionalized organic building block featuring both a reactive acid chloride and a chloroethynyl group. This compound matters for its versatility as a key synthon in advanced organic synthesis, enabling the rapid construction of complex molecular architectures. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for creating novel active ingredients and intermediates.

Application

• Pharmaceutical Intermediate: A critical building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting small molecule therapeutics.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and fungicides, leveraging its reactive sites for structural diversification.
• Material Science Research: Serves as a precursor for specialty polymers, liquid crystals, or advanced organic materials requiring cyclopropane and acetylene motifs.
• Chemical Biology Probes: Employed in the creation of molecular probes and tags due to the click-chemistry potential of the alkynyl group and the acylating ability of the acid chloride.
• Custom Synthesis & Contract Manufacturing: A valuable starting material for fine chemical manufacturers offering bespoke synthesis services to global clients.

Basic Information

Product Name	Cyclopropanecarbonyl Chloride, 3-(Chloroethynyl)-2,2-Dimethyl- (9Ci)
CAS No.	64964-55-2
Molecular Formula	C8H8Cl2O
Molecular Weight	191.06 g/mol
Synonyms	3-(Chloroethynyl)-2,2-dimethylcyclopropanecarbonyl chloride; 2,2-Dimethyl-3-(2-chloroethynyl)cyclopropanecarboxylic acid chloride; 1-Chlorocarbonyl-2,2-dimethyl-3-(2-chloroethynyl)cyclopropane; Cyclopropanecarbonyl chloride, 3-(2-chloroethynyl)-2,2-dimethyl-; (3-(Chloroethynyl)-2,2-dimethylcyclopropyl)carbonyl chloride
EINECS	Contact for details

Quality Control

Our Cyclopropanecarbonyl Chloride, 3-(Chloroethynyl)-2,2-Dimethyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from strong acids and incompatible organic solvents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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