Description

2-Cyclopropene-1-Carbonyl Chloride, 1-Chloro-2,3-Dimethyl- (9Ci) is a highly reactive and versatile acid chloride derivative of a substituted cyclopropene, serving as a critical building block in advanced organic synthesis. Its strained three-membered ring and reactive carbonyl chloride group make it an invaluable precursor for constructing complex molecular architectures. This specialty intermediate is primarily sought by R&D chemists and process development scientists in the pharmaceutical and agrochemical sectors for the synthesis of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing novel drug candidates, particularly those requiring cyclopropane or strained ring motifs for biological activity.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, where the cyclopropene structure can impart unique modes of action.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialty polymers with tailored thermal or mechanical properties.
• Organic Synthesis Reagent: Employed in academic and industrial labs for cyclopropanation reactions, [2+2] cycloadditions, and the introduction of acid-sensitive functional groups.
• Ligand and Catalyst Development: Serves as a precursor for creating novel chiral ligands or organometallic catalysts used in asymmetric synthesis.
• Fluorescent Probe Synthesis: Useful in constructing molecular probes and markers for biochemical and diagnostic applications due to its reactive handle.

Basic Information

Item	Details
Product Name	2-Cyclopropene-1-Carbonyl Chloride, 1-Chloro-2,3-Dimethyl- (9Ci)
CAS No.	35436-21-6
Molecular Formula	C6H7Cl2O
Molecular Weight	163.03 g/mol
Synonyms	1-Chloro-2,3-dimethyl-2-cyclopropene-1-carbonyl chloride; 1-Chloro-2,3-dimethylcyclopropene-1-carbonyl chloride; 2,3-Dimethyl-1-chloro-2-cyclopropene-1-carbonyl chloride; (1-Chloro-2,3-dimethyl-2-cyclopropen-1-yl)carbonyl chloride; 35436-21-6 (CAS); Cyclopropenecarbonyl chloride, 1-chloro-2,3-dimethyl-; 1-Chloro-2,3-dimethyl-1-cyclopropenecarboxylic acid chloride
EINECS	Contact for details

Quality Control

Every batch of 2-Cyclopropene-1-Carbonyl Chloride, 1-Chloro-2,3-Dimethyl- (9Ci) undergoes rigorous analytical testing to ensure identity, purity, and consistency. Our quality assurance protocols are designed to meet the stringent requirements of research and process chemistry. A comprehensive Certificate of Analysis (COA) detailing purity (typically by GC or HPLC), identity confirmation (IR, NMR), and impurity profiles is provided with each shipment to support your quality and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at 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) to prevent decomposition. Keep away from heat, open flames, and incompatible materials such as bases, alcohols, and amines.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Research Grade)
Water Content (KF)	≤ 0.5%

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