Description

Cyclopentanemethanesulfonic Acid, 3-Hydroxy-, cis- (9Ci) is a specialized chiral sulfonic acid derivative that serves as a critical building block in advanced organic synthesis. Its unique cis-configured hydroxy and sulfonic acid functional groups on the cyclopentane ring make it a valuable precursor for creating complex, stereodefined molecules. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical and fine chemical industries, particularly for developing novel active pharmaceutical ingredients (APIs) and chiral catalysts.

Application

• Pharmaceutical Intermediate: Key chiral synthon for the research and development of novel therapeutic agents, including enzyme inhibitors and receptor modulators.
• Asymmetric Catalyst Ligand Synthesis: Used to construct sophisticated ligand frameworks for transition metal catalysis, enabling highly enantioselective transformations.
• Fine Chemical Production: Serves as a building block for specialty chemicals, agrochemicals, and advanced materials requiring specific stereochemistry.
• Chemical Research & Development: A valuable tool for academic and industrial R&D in exploring new synthetic methodologies and compound libraries.
• Reference Standard: Utilized as a high-purity analytical standard for method development and quality control in analytical laboratories.

Basic Information

Product Name	Cyclopentanemethanesulfonic Acid, 3-Hydroxy-, cis- (9Ci)
CAS No.	64646-22-6
Molecular Formula	C6H12O4S
Molecular Weight	180.22 g/mol
Synonyms	cis-3-Hydroxycyclopentanemethanesulfonic Acid; (1R,3S)-3-Hydroxycyclopentylmethanesulfonic Acid (enantiomer); 3-Hydroxycyclopentylmethanesulfonic Acid; Cyclopentanesulfonic acid, 3-hydroxy-, cis-; 64646-22-6; cis-3-Hydroxycyclopentanesulfonic acid methylene ester
EINECS	Contact for details

Quality Control

Our Cyclopentanemethanesulfonic Acid, 3-Hydroxy-, cis- (9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets the high-purity standards required for sensitive synthetic applications. Certificates of Analysis (COA) with detailed chromatographic and spectroscopic data are provided to guarantee traceability and batch-to-batch consistency.

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 nature, the container must be kept tightly sealed to exclude moisture. For long-term storage, consider the use of a desiccant.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
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.