Description

Cyclopentanesulfonyl Chloride is a versatile and highly reactive sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its primary value lies in its ability to act as a sulfonylation reagent, facilitating the introduction of the cyclopentanesulfonyl moiety to construct complex molecules with tailored properties. This intermediate is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, where it is used to develop novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the production of novel herbicides, fungicides, and pesticides with the cyclopentanesulfonyl functional group.
• Material Science: Intermediate for creating specialized polymers, surfactants, and ligands with specific solubility or binding characteristics.
• Chemical Research: A valuable reagent in academic and industrial R&D for method development and exploring new synthetic pathways.
• Custom Synthesis: Serves as a starting material for contract research and manufacturing organizations (CROs/CMOs) to produce bespoke compounds for clients.

Basic Information

Product Name	Cyclopentanesulfonyl Chloride
CAS No.	26394-17-2
Molecular Formula	C5H9ClO2S
Molecular Weight	168.64 g/mol
Synonyms	Cyclopentanesulfonyl chloride; Cyclopentylsulfonyl chloride; Cyclopentanesulfonic acid chloride; NSC 163082; Cyclopentanesulphonic acid chloride; Cyclopentanesulphonyl chloride; Cyclopentanesulfonylchloride
EINECS	Contact for details

Quality Control

Our Cyclopentanesulfonyl Chloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available for all shipments. We adhere to cGMP principles where applicable to support our customers in regulated industries.

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 tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

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