Description

1-Cyclopentene-1-Carbonyl Chloride, 2-Chloro- (9Ci) is a highly reactive, functionalized acid chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in enabling the efficient introduction of the cyclopentenyl carbonyl moiety, a versatile handle for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, particularly for developing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, especially in the development of prostaglandin analogs, antiviral agents, and other bioactive molecules featuring cyclopentene rings.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where its reactive carbonyl chloride group facilitates the creation of potent active ingredients.
• Polymer Chemistry: Acts as a monomer or cross-linking agent for specialty polymers, contributing to materials with specific thermal or mechanical properties.
• Ligand and Catalyst Development: Employed in the synthesis of complex organic ligands for asymmetric catalysis and metal-organic frameworks (MOFs).
• Fine Chemical Production: Serves as a precursor for flavors, fragrances, and other high-value specialty chemicals requiring the cyclopentene backbone.
• Academic and R&D: A valuable reagent for methodological studies in organic chemistry, exploring new cycloaddition and functionalization reactions.

Basic Information

Item	Detail
Product Name	1-Cyclopentene-1-Carbonyl Chloride, 2-Chloro- (9Ci)
CAS No.	35582-46-8
Molecular Formula	C7H6Cl2O
Molecular Weight	177.03 g/mol
Synonyms	2-Chloro-1-cyclopentene-1-carbonyl chloride; 2-Chlorocyclopent-1-ene-1-carbonyl chloride; 2-Chloro-1-cyclopentenecarbonyl chloride; 1-Cyclopentene-1-carbonyl chloride, 2-chloro-; (2-Chlorocyclopent-1-en-1-yl)carbonyl chloride
EINECS	Contact for details

Quality Control

Our 1-Cyclopentene-1-Carbonyl Chloride, 2-Chloro- (9Ci) is manufactured under stringent quality control protocols to ensure batch-to-batch consistency and high purity suitable for research and industrial synthesis. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality system is designed to meet the rigorous demands of GMP-aligned production environments for pharmaceutical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from strong bases, oxidizers, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (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.