Description

Ethanone, 1-[(1R,2S)-2-(1-Methylethyl)Cyclopentyl]-, Rel-(-)- (9Ci) CAS NO 479414-42-1 is a high-purity, chiral ketone derivative characterized by its specific stereochemistry. This compound is valued as a critical chiral building block and intermediate in advanced organic synthesis, where its defined stereocenter is essential for imparting specific biological activity or material properties. It is primarily required by research and development laboratories and production facilities in the pharmaceutical, agrochemical, and specialty chemical industries for the synthesis of enantiomerically pure active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and production of enantiomerically pure drug candidates, particularly in therapeutic areas requiring high stereoselectivity.
• Agrochemical Synthesis: Used in the development of advanced pesticides and herbicides where the specific stereochemistry of the molecule influences efficacy and environmental profile.
• Asymmetric Catalysis Research: Serves as a substrate or ligand precursor in the development and testing of new chiral catalysts and synthetic methodologies.
• Fragrance and Flavor Chemistry: Potential use as an intermediate for creating stereochemically defined aroma chemicals and flavoring agents.
• Material Science Research: Employed as a monomer or functionalization agent in the synthesis of specialty polymers with tailored optical or physical properties.
• Academic and R&D Laboratories: A valuable reference standard and building block for synthetic organic chemistry research in academic and industrial settings.

Basic Information

Product Name	Ethanone, 1-[(1R,2S)-2-(1-Methylethyl)Cyclopentyl]-, Rel-(-)- (9Ci)
CAS No.	479414-42-1
Molecular Formula	C10H18O
Molecular Weight	154.25 g/mol
Synonyms	(-)-1-[(1R,2S)-2-Isopropylcyclopentyl]ethanone; (1R,2S)-rel-2-Isopropylcyclopentyl methyl ketone; rel-(1R,2S)-2-Isopropyl-1-acetylcyclopentane; 1-[(1R,2S)-2-Isopropylcyclopentyl]ethanone; Chiral Isopropylcyclopentyl Methyl Ketone; 479414-42-1; (1R,2S)-2-(1-Methylethyl)cyclopentyl methyl ketone
EINECS	Contact for details

Quality Control

Our production of this chiral intermediate adheres to stringent quality protocols to ensure batch-to-batch consistency and high enantiomeric purity. Each lot is characterized using advanced analytical techniques including chiral HPLC, GC, and NMR to confirm identity, purity, and stereochemical integrity. Certificates of Analysis (COA) detailing all relevant specifications are provided with every shipment. We operate under a quality management system and can support development projects requiring ICH stability data or custom analytical method development.

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. Keep away from heat, sparks, and open flame. Due to its sensitivity to light and oxidation, containers should be kept sealed and only opened in a controlled environment.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0%
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.