Description

Cyclopentanecarboxylic Acid, 2-Mercapto- (9Ci) is a specialized organosulfur compound featuring a cyclopentane ring substituted with both a carboxylic acid and a thiol (mercapto) functional group. This unique bifunctional structure makes it a valuable chiral building block and intermediate in advanced organic synthesis. It is primarily sought after by research and development chemists in the pharmaceutical and agrochemical industries for the construction of complex molecules, particularly those requiring specific stereochemistry.

Application

• Pharmaceutical Intermediate: Key chiral synthon for the development of active pharmaceutical ingredients (APIs), especially in protease inhibitor research and other therapeutic areas.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and pesticides where the cyclopentane-thiol motif is required.
• Ligand and Catalyst Preparation: Serves as a precursor for chiral ligands and catalysts used in asymmetric synthesis, enhancing reaction selectivity.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, and fragrances that utilize constrained carboxylic acid derivatives.
• Material Science Research: Investigated as a monomer or modifying agent for polymers with specific functional properties.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 2-Mercapto- (9Ci)
CAS No.	108744-13-4
Molecular Formula	C6H10O2S
Molecular Weight	146.21 g/mol
Synonyms	2-Mercaptocyclopentanecarboxylic Acid; (1R,2S)-rel-2-Mercaptocyclopentanecarboxylic Acid; 2-Sulfanylcyclopentanecarboxylic Acid; Cyclopentanecarboxylic acid, 2-mercapto-; 2-Mercaptocyclopentane-1-carboxylic Acid
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 2-Mercapto- (9Ci) is produced under strict quality management protocols. Each batch is characterized and tested to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications such as assay (by HPLC), enantiomeric excess, and impurity profiles are provided and available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). The product is moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere to prevent oxidation of the thiol group.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	Contact for details
Loss on Drying	≤ 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.