Description

Cyclopentanecarboxylic Acid, 3-(Chlorocarbonyl)-, Methyl Ester, cis- (9Ci) is a high-purity, functionalized cyclopentane derivative designed for advanced chemical synthesis. This compound serves as a critical chiral building block and reactive intermediate, enabling the construction of complex molecular architectures with precise stereochemistry. It is essential for researchers and process chemists in the pharmaceutical, agrochemical, and specialty chemical industries who require reliable, high-quality intermediates for developing active ingredients and novel materials.

Application

• Pharmaceutical Intermediate: Key chiral synthon for the synthesis of prostaglandins, antiviral agents, and other bioactive molecules with a cyclopentane core.
• Agrochemical Synthesis: Building block for creating novel herbicides, fungicides, and plant growth regulators with enhanced efficacy.
• Advanced Material Precursor: Used in the development of specialty polymers, liquid crystals, and organic electronic materials.
• Organic Synthesis Reagent: Employed in stereoselective reactions, including esterifications, amidations, and ring-forming transformations.
• Chemical Research & Development: A valuable tool for medicinal chemistry and process R&D in exploring new synthetic pathways.
• Fine Chemical Production: Intermediate in the multi-step synthesis of complex fragrances, flavors, and dyes.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 3-(Chlorocarbonyl)-, Methyl Ester, cis- (9Ci)
CAS No.	116940-83-1
Molecular Formula	C8H11ClO3
Molecular Weight	190.62 g/mol
Synonyms	cis-3-(Chlorocarbonyl)cyclopentanecarboxylic acid methyl ester; Methyl cis-3-(chloroformyl)cyclopentanecarboxylate; 3-Carboxy-1-cyclopentanecarboxylic acid, methyl ester, chloride, cis-; cis-Methyl 3-(chlorocarbonyl)cyclopentanecarboxylate; (1R,3S)-3-(Methoxycarbonyl)cyclopentane-1-carbonyl chloride (enantiomer); Cyclopentanecarbonyl chloride, 3-(methoxycarbonyl)-, cis-
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 3-(Chlorocarbonyl)-, Methyl Ester, cis- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity and assay determination, to ensure it meets the high standards required for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your R&D and production needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% cis-isomer
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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