Description

2-Cyclopentene-1-Methanol,5-Ethoxy-,Methanesulfonate,(1R,5S)-Rel-(9Ci) is a high-purity, stereochemically defined chiral building block and intermediate. This compound is valued for its precise molecular architecture, which is critical for synthesizing complex molecules with specific biological activities. It is primarily utilized by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs) and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of new therapeutic agents, particularly for central nervous system (CNS) and anti-inflammatory targets.
• Asymmetric Synthesis: Used in catalytic and stoichiometric asymmetric reactions to construct complex, enantiomerically pure molecular frameworks.
• Medicinal Chemistry Research: Serves as a versatile scaffold for structure-activity relationship (SAR) studies and lead optimization in drug discovery programs.
• Fine Chemical Production: Employed in the multi-step synthesis of specialty chemicals, agrochemicals, and advanced materials requiring high stereochemical fidelity.
• Academic & Industrial R&D: A valuable reagent for methodological development in organic synthesis and catalysis within university and corporate R&D laboratories.

Basic Information

Product Name	2-Cyclopentene-1-Methanol,5-Ethoxy-,Methanesulfonate,(1R,5S)-Rel-(9Ci)
CAS No.	344327-58-8
Molecular Formula	C9H16O4S
Molecular Weight	220.29 g/mol
Synonyms	(1R,5S)-rel-5-Ethoxy-2-cyclopenten-1-ylmethyl methanesulfonate; (1R,5S)-rel-5-Ethoxy-2-cyclopentene-1-methanol methanesulfonate; 5-Ethoxy-2-cyclopenten-1-ylmethyl methanesulfonate, (1R,5S)-rel-; rel-(1R,5S)-5-Ethoxy-2-cyclopenten-1-ylmethyl methanesulfonate; Methanesulfonic acid (1R,5S)-rel-5-ethoxy-2-cyclopenten-1-ylmethyl ester
EINECS	Contact for details

Quality Control

Our 2-Cyclopentene-1-Methanol,5-Ethoxy-,Methanesulfonate,(1R,5S)-Rel-(9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity assessment by HPLC, to ensure high chemical and stereochemical purity suitable for advanced synthetic applications. Certificates of Analysis (COA) with detailed chromatographic data are provided for every shipment, ensuring full traceability and compliance with research-grade specifications.

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). Keep away from heat, sparks, and open flame. The container should be kept tightly sealed to prevent moisture absorption and potential decomposition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% de
Water Content (KF)	≤ 0.5%

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