Description

Ethanone, 1-[(1R,2S)-2-Hydroxy-2-Methylcyclopentyl]-, Rel- (9Ci) is a high-purity chiral intermediate of significant importance in advanced organic synthesis. This compound matters because its defined stereochemistry provides a critical building block for the production of complex, optically active molecules. It is primarily needed by research institutions and pharmaceutical manufacturers engaged in the development of novel active pharmaceutical ingredients (APIs) and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and production of novel therapeutic agents.
• Asymmetric Synthesis: Used as a precursor or auxiliary in catalytic asymmetric reactions to induce stereoselectivity.
• Fine Chemical Production: Serves as a building block for the manufacture of specialty fragrances, flavors, and advanced materials.
• Academic & R&D Laboratories: Employed in methodological studies and the synthesis of complex natural product analogs.
• Process Chemistry Development: Utilized for scaling up synthetic routes in pilot plants and optimizing manufacturing processes.

Basic Information

Product Name	Ethanone, 1-[(1R,2S)-2-Hydroxy-2-Methylcyclopentyl]-, Rel- (9Ci)
CAS No.	299895-60-6
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	rel-(1R,2S)-2-Hydroxy-2-methylcyclopentyl methyl ketone; 1-[(1R,2S)-2-Hydroxy-2-methylcyclopentyl]ethanone; (1R,2S)-2-Acetyl-2-methylcyclopentanol (relative configuration); 2-Methyl-2-(1-oxoethyl)cyclopentanol; Chiral hydroxy methyl cyclopentyl ketone
EINECS	Contact for details

Quality Control

Our Ethanone, 1-[(1R,2S)-2-Hydroxy-2-Methylcyclopentyl]-, Rel- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity assessment by HPLC, to ensure compliance with exacting customer specifications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). This material is moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere for prolonged storage to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
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.