Description

1-(4-Chloro-Benzenesulfonyl)-Cyclopentane-Carboxylic Acid is a specialized organic intermediate featuring a cyclopentane carboxylic acid core substituted with a 4-chlorobenzenesulfonyl group. This molecular architecture makes it a valuable building block for the synthesis of more complex molecules, particularly in pharmaceutical research and development. It is primarily sought by R&D chemists and process development scientists in the fine chemical and pharmaceutical industries for creating novel active pharmaceutical ingredients (APIs) and other high-value compounds.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly those targeting sulfonamide-based pharmacophores.
• Agrochemical Synthesis: Used in the preparation of advanced herbicides, fungicides, and pesticides that require a sulfonyl chloride derivative precursor.
• Material Science Research: Serves as a monomer or functionalizing agent in the development of specialty polymers with specific thermal or chemical resistance properties.
• Organic Synthesis Building Block: Employed in academic and industrial laboratories for constructing complex organic molecules, leveraging its reactive carboxylic acid and sulfonyl groups for further derivatization.
• Ligand and Catalyst Development: Utilized in the creation of novel ligands for metal catalysis or as a core structure for organocatalysts.

Basic Information

Product Name	1-(4-Chloro-Benzenesulfonyl)-Cyclopentane-Carboxylic Acid
CAS No.	505071-95-4
Molecular Formula	C12H13ClO4S
Molecular Weight	288.75 g/mol
Synonyms	Cyclopentanecarboxylic acid, 1-[(4-chlorophenyl)sulfonyl]-; 1-(4-Chlorophenylsulfonyl)cyclopentanecarboxylic acid; 1-[(4-Chlorobenzene)sulfonyl]cyclopentanecarboxylic acid; 4-Chloro-N-(1-carboxycyclopentyl)benzenesulfonamide (tautomeric form); 505071-95-4; 1-(p-Chlorobenzenesulfonyl)cyclopentanecarboxylic acid
EINECS	Contact for details

Quality Control

Our production of 1-(4-Chloro-Benzenesulfonyl)-Cyclopentane-Carboxylic Acid adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity for research and scale-up applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, identity, and impurity profiles. We support cGMP-compliant manufacturing for advanced pharmaceutical applications upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from strong bases, strong oxidizing agents, and sources of ignition. For long-term storage, consider under an inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Unknown Impurity	≤ 0.5%

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