Description

4-Cyclopentylbenzenesulfonyl Chloride is a specialized organic sulfonyl chloride derivative, serving as a critical building block in advanced chemical synthesis. Its value lies in its high reactivity as a sulfonylation reagent, enabling the introduction of the 4-cyclopentylbenzenesulfonyl moiety into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing active ingredients and fine chemicals where this specific sulfonamide group is required.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, especially in the development of sulfonamide-based therapeutics.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and pesticides that incorporate sulfonamide functional groups.
• Material Science Research: Employed in the creation of specialty polymers and functional materials requiring specific sulfonyl linkages.
• Chemical Biology & Proteomics: Acts as a reagent for protein labeling and modification studies due to its reactivity with amino groups.
• Catalyst & Ligand Development: Serves as a precursor for synthesizing specialized ligands and organocatalysts used in asymmetric synthesis.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom chemical synthesis services catering to R&D and pilot-scale production.

Basic Information

Product Name	4-Cyclopentylbenzenesulfonyl Chloride
CAS No.	54997-94-3
Molecular Formula	C11H13ClO2S
Molecular Weight	244.74 g/mol
Synonyms	p-Cyclopentylbenzenesulfonyl chloride; 4-Cyclopentylbenzene-1-sulfonyl chloride; (4-Cyclopentylphenyl)sulfonyl chloride; Benzenesulfonyl chloride, 4-cyclopentyl-; Cyclopentylbenzenesulfonyl chloride
EINECS	Contact for details

Quality Control

Our 4-Cyclopentylbenzenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high purity and consistency. Certificates of Analysis (COA) with detailed specifications are provided for every shipment, ensuring full traceability and compliance with your research or production requirements.

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 (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from strong bases, oxidizers, and moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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