Description

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

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 chiral ligands and organocatalysts used in asymmetric catalysis.
• Fine Chemical Production: Employed in the manufacture of specialty and performance chemicals requiring specific stereochemistry.
• Academic and R&D Laboratories: A valuable reagent for methodological studies in organic chemistry and novel reaction development.

Basic Information

Product Name	Cyclopentanecarbonyl Chloride, 2-Ethenyl-1-Methyl-, (1R,2S)-Rel- (9Ci)
CAS No.	378782-23-1
Molecular Formula	C9H13ClO
Molecular Weight	172.65 g/mol
Synonyms	(1R,2S)-rel-2-Ethenyl-1-methylcyclopentanecarbonyl chloride; (1R,2S)-rel-1-Methyl-2-vinylcyclopentanecarboxylic acid chloride; 2-Vinyl-1-methylcyclopentanecarbonyl chloride, (1R,2S)-rel-; Chiral Cyclopentanecarbonyl Chloride Derivative; (1R,2S)-rel-2-Ethenyl-1-methyl-cyclopentanecarbonyl chloride
EINECS	Contact for details

Quality Control

Our Cyclopentanecarbonyl Chloride, 2-Ethenyl-1-Methyl-, (1R,2S)-Rel- (9Ci) is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis by HPLC, to ensure it meets the exacting standards required for advanced synthetic applications. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming identity, purity, and enantiomeric excess.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area. Due to its hygroscopic and moisture-sensitive nature, containers should be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Recommended storage temperature is 2-8°C for long-term stability.

Specification

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

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