Description

Cyclopropanecarboxylic Acid, 2-(Chlorocarbonyl)-, Ethyl Ester (9Ci) is a specialized organic building block featuring a reactive acid chloride group and a cyclopropane ring. This compound is valued for its bifunctional reactivity, enabling its use as a key intermediate in the synthesis of complex molecules. It is primarily sought by research and development chemists in the pharmaceutical and agrochemical industries for constructing novel active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing cyclopropane motifs for bioactivity modulation.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides, leveraging the cyclopropane ring for enhanced biological activity.
• Organic Synthesis Building Block: Serves as a versatile reagent for introducing the cyclopropanecarbonyl moiety into target molecules via amidation or esterification reactions.
• Material Science Research: Employed in the creation of specialized polymers and advanced organic materials with unique structural properties.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying enzyme function and biological pathways.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 2-(Chlorocarbonyl)-, Ethyl Ester (9Ci)
CAS No.	178687-20-2
Molecular Formula	C7H9ClO3
Molecular Weight	176.60 g/mol
Synonyms	2-(Chlorocarbonyl)cyclopropanecarboxylic acid ethyl ester; Ethyl 2-(chlorocarbonyl)cyclopropanecarboxylate; 1-(Ethoxycarbonyl)cyclopropane-1-carbonyl chloride; Cyclopropane-1,1-dicarboxylic acid monoethyl ester chloride; 1-Carbethoxycyclopropanecarbonyl chloride
EINECS	Contact for details

Quality Control

Our production of Cyclopropanecarboxylic Acid, 2-(Chlorocarbonyl)-, Ethyl Ester adheres to stringent quality protocols to ensure batch-to-batch consistency and reliability for your synthetic processes. Each lot is analyzed using advanced techniques including HPLC, GC, and NMR to verify identity, purity, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every 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). Due to its hygroscopic (moisture-sensitive) nature and reactivity as a strong acid/organic solvent derivative, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and degradation. Keep away from heat, open flames, and incompatible materials such as bases, alcohols, and amines.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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