Description

Ethanone, 1-(2,5-Dimethylcyclopentyl)-, (2S,5S)- (9Ci) is a high-purity, stereochemically defined chiral ketone building block. This compound is valued for its unique structural framework, which serves as a critical intermediate in the synthesis of complex, biologically active molecules. It is primarily sought after by research and development teams in the pharmaceutical and fine chemical industries for applications in asymmetric synthesis, medicinal chemistry, and the development of novel fragrance and flavor components.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of new active pharmaceutical ingredients (APIs), particularly in projects requiring specific stereochemistry.
• Asymmetric Synthesis: Used as a building block in catalytic asymmetric reactions to construct complex molecular architectures with high enantiomeric purity.
• Medicinal Chemistry Research: Employed in lead optimization and structure-activity relationship (SAR) studies to explore new chemical entities.
• Fine Chemical Production: Serves as a precursor in the manufacture of specialty chemicals, including advanced materials and performance chemicals.
• Fragrance & Flavor Chemistry: Its specific dimethylcyclopentyl structure makes it a potential intermediate for synthesizing novel odorants and flavoring agents with unique sensory profiles.
• Academic & Industrial R&D: Utilized in chemical research laboratories for methodological development and exploring new synthetic pathways.

Basic Information

Product Name	Ethanone, 1-(2,5-Dimethylcyclopentyl)-, (2S,5S)- (9Ci)
CAS No.	243672-12-0
Molecular Formula	C9H16O
Molecular Weight	140.22 g/mol
Synonyms	(2S,5S)-1-(2,5-Dimethylcyclopentyl)ethan-1-one; (2S,5S)-1-(2,5-Dimethylcyclopentyl)ethanone; 1-[(2S,5S)-2,5-Dimethylcyclopentyl]ethanone; (2S,5S)-2,5-Dimethylcyclopentyl methyl ketone; (2S-cis)-1-(2,5-Dimethylcyclopentyl)ethanone; Chiral 2,5-Dimethylcyclopentyl Methyl Ketone; (2S,5S)-DMCPK; (2S,5S)-243672-12-0
EINECS	Contact for details

Quality Control

Our Ethanone, 1-(2,5-Dimethylcyclopentyl)-, (2S,5S)- (9Ci) is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis (HPLC/GC), identity confirmation (IR, NMR), and assay determination to ensure it meets the high standards required for advanced synthetic applications. Certificates of Analysis (COA) with detailed specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

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