Description

Cyclopentanecarboxylic Acid, 1-Mercapto- (9Ci) CAS NO 59679-20-8 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 by research and development chemists in the pharmaceutical and fine chemical industries for applications requiring precise molecular construction.

Application

• Pharmaceutical Intermediate: Serves as a key chiral precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with constrained ring systems.
• Ligand Synthesis: Used in the preparation of specialized ligands for asymmetric catalysis and metal complexation.
• Peptidomimetics Research: Acts as a constrained amino acid analog for developing novel peptide-based therapeutics and biochemical probes.
• Material Science: Employed in the synthesis of functionalized monomers for specialty polymers with unique properties.
• Agrochemical Intermediates: Utilized in the research and development of novel crop protection agents.
• Chemical Biology: Functions as a tool compound for studying enzyme inhibition and protein interactions due to its reactive thiol group.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 1-Mercapto- (9Ci)
CAS No.	59679-20-8
Molecular Formula	C6H10O2S
Molecular Weight	146.21 g/mol
Synonyms	1-Mercaptocyclopentanecarboxylic Acid; (1-Mercaptocyclopentyl)formic Acid; 1-Sulfanylcyclopentanecarboxylic Acid; Cyclopentanecarbothioic Acid, 1-Mercapto-; 1-Mercapto-1-cyclopentanecarboxylic Acid; Mercaptocyclopentanecarboxylic Acid
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 1-Mercapto- (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity assessment and structural confirmation, to ensure it meets the high standards required for research and synthesis. Certificates of Analysis (COA) with detailed specifications are provided for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated place. This product is hygroscopic (moisture-sensitive) and easily oxidized; containers must be kept tightly sealed and purged after each use to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
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.