Description

Cyclopentanecarboxaldehyde, 2-(1-Methoxyethyl)-, [1Alpha,2Beta(S*)]- (9Ci) is a chiral aldehyde derivative of cyclopentane, serving as a sophisticated building block in asymmetric synthesis. Its defined stereochemistry makes it a valuable precursor for creating complex, optically active molecules with high enantiomeric purity. This compound is primarily sought by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals. The CAS number for this specific stereoisomer is 156684-24-1.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of new active pharmaceutical ingredients (APIs), particularly in areas requiring specific stereochemical control.
• Agrochemical Synthesis: Used in the production of advanced, stereoselective pesticides and herbicides where biological activity is often enantiomer-specific.
• Fine Chemical Production: Serves as a versatile starting material for synthesizing specialty chemicals, flavors, and fragrances that demand high purity and defined chirality.
• Academic & Industrial Research: Employed in methodological development and catalysis studies focused on stereoselective aldol and other carbon-carbon bond-forming reactions.
• Ligand and Catalyst Development: Acts as a precursor for creating novel chiral ligands and organocatalysts used in asymmetric synthesis.

Basic Information

Product Name	Cyclopentanecarboxaldehyde, 2-(1-Methoxyethyl)-, [1Alpha,2Beta(S*)]- (9Ci)
CAS No.	156684-24-1
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	(1S,2R)-2-(1-Methoxyethyl)cyclopentanecarboxaldehyde; (1S,2R)-2-(1-Methoxyethyl)cyclopentane-1-carbaldehyde; [1α,2β(S*)]-2-(1-Methoxyethyl)cyclopentanecarboxaldehyde; (1S,2R)-1-Formyl-2-(1-methoxyethyl)cyclopentane; 2-(1-Methoxyethyl)cyclopentanecarboxaldehyde (stereoisomer)
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxaldehyde, 2-(1-Methoxyethyl)-, [1Alpha,2Beta(S*)]- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chiral HPLC and NMR, to confirm identity, stereochemical purity (enantiomeric excess), and chemical purity. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to ensure traceability and compliance with your research or production requirements.

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 area. This material is easily oxidized and light-sensitive; prolonged exposure to air or light should be avoided to maintain stability and purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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