Description

1-Cyclopentene-1-Carbonyl Chloride, 2-(Methylthio)- (9Ci) is a specialized organosulfur building block featuring a reactive acid chloride group and a methylthio substituent on a cyclopentene ring. This compound matters for its role as a key synthetic intermediate, enabling the efficient introduction of the 2-(methylthio)cyclopent-1-ene-1-carbonyl moiety into more complex molecular architectures. It is primarily needed by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or possessing specific receptor-binding profiles.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, where the cyclopentene core can contribute to unique biological activity.
• Material Science Research: Acts as a monomer or functionalization agent in the development of advanced polymers with tailored properties.
• Ligand and Catalyst Development: Employed to create novel sulfur-containing ligands for transition metal catalysis.
• Chemical Biology Probes: Utilized to synthesize activity-based probes or labeled compounds for studying biological pathways.
• Fine Chemical Production: Integral to the multi-step synthesis of complex, high-value specialty chemicals for various industrial applications.

Basic Information

Product Name	1-Cyclopentene-1-Carbonyl Chloride, 2-(Methylthio)- (9Ci)
CAS No.	65936-20-1
Molecular Formula	C7H9ClOS
Molecular Weight	176.66 g/mol
Synonyms	2-(Methylthio)-1-cyclopentene-1-carbonyl chloride; 2-Methylsulfanylcyclopent-1-ene-1-carbonyl chloride; 1-Cyclopentene-1-carbonyl chloride, 2-(methylthio)-; 2-(Methylthio)cyclopent-1-ene-1-carbonyl chloride; 2-Methylmercapto-1-cyclopentene-1-carboxylic acid chloride
EINECS	Contact for details

Quality Control

Our production of 1-Cyclopentene-1-Carbonyl Chloride, 2-(Methylthio)- adheres to stringent internal quality standards to ensure batch-to-batch consistency and reliability for your synthetic workflows. Each lot is characterized using advanced analytical techniques including NMR, HPLC, and IR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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