Description

Cyclopentanecarbonyl Chloride, 2-Ethenyl-, (1R,2S)-Rel- (9Ci) is a high-purity chiral building block of significant interest in advanced organic synthesis. Its value lies in its reactive acid chloride functionality and defined stereochemistry, enabling the precise construction of complex molecular architectures. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, particularly for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of new active pharmaceutical ingredients (APIs), especially in stereoselective synthesis.
• Agrochemical Synthesis: Used in the creation of advanced, enantiomerically pure pesticides and herbicides.
• Ligand and Catalyst Development: Serves as a precursor for synthesizing specialized ligands and organocatalysts used in asymmetric catalysis.
• Fine Chemical Production: Employed in the manufacture of high-value, complex specialty chemicals and flavors/fragrances intermediates.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of novel polymers with specific chiral properties.
• Academic & Industrial R&D: A valuable tool for methodological studies in organic chemistry and process development.

Basic Information

Product Name	Cyclopentanecarbonyl Chloride, 2-Ethenyl-, (1R,2S)-Rel- (9Ci)
CAS No.	378782-20-8
Molecular Formula	C8H11ClO
Molecular Weight	158.62 g/mol
Synonyms	(1R,2S)-rel-2-Ethenylcyclopentanecarbonyl chloride; (1R,2S)-rel-2-Vinylcyclopentanecarbonyl chloride; rel-(1R,2S)-2-Vinyl-1-cyclopentanecarbonyl chloride; 2-Vinylcyclopentanecarbonyl chloride, (1R,2S)-rel-; Cyclopentanecarbonyl chloride, 2-ethenyl-, (1R,2S)-rel-; (1R,2S)-rel-2-Ethenyl-1-cyclopentanecarboxylic acid chloride
EINECS	Contact for details

Quality Control

Our Cyclopentanecarbonyl Chloride, 2-Ethenyl-, (1R,2S)-Rel- (9Ci) is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including NMR, HPLC, and chiral analysis to confirm identity, purity, and enantiomeric excess. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment 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 area. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% e.e.
Water Content (KF)	≤ 0.5%

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