Description

Ethanone, 1-[(4S)-4-(1-Methylethenyl)-1-Cyclopenten-1-Yl]- (9Ci) is a specialized chiral ketone compound featuring a cyclopentenyl backbone with an isopropenyl substituent. This unique molecular architecture makes it a valuable chiral building block and intermediate for synthesizing complex organic molecules. It is primarily sought by research and development chemists in the pharmaceutical and fine chemical industries for applications in asymmetric synthesis, fragrance development, and advanced material science.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of active pharmaceutical ingredients (APIs), particularly in stereoselective synthesis.
• Fine Chemical Synthesis: Used as a building block for creating complex natural product analogs, flavors, and fragrances.
• Asymmetric Catalysis Research: Serves as a substrate or ligand precursor in the development of new catalytic systems for enantioselective reactions.
• Material Science Research: Potential intermediate for the synthesis of specialized polymers or liquid crystals with specific optical properties.
• Agrochemical Research: Investigated as an intermediate for novel, biologically active compounds.

Basic Information

Product Name	Ethanone, 1-[(4S)-4-(1-Methylethenyl)-1-Cyclopenten-1-Yl]- (9Ci)
CAS No.	85031-78-3
Molecular Formula	C10H14O
Molecular Weight	150.22 g/mol
Synonyms	1-[(4S)-4-Isopropenyl-1-cyclopenten-1-yl]ethanone; (4S)-4-Isopropenyl-1-cyclopenten-1-yl methyl ketone; (S)-1-(4-Isopropenylcyclopent-1-en-1-yl)ethanone; (S)-4-Isopropenyl-1-cyclopenten-1-yl methyl ketone; (S)-4-(Prop-1-en-2-yl)cyclopent-1-en-1-yl methyl ketone; Chiral Cyclopentenyl Ketone; CAS 85031-78-3
EINECS	Contact for details

Quality Control

Our production of Ethanone, 1-[(4S)-4-(1-Methylethenyl)-1-Cyclopenten-1-Yl]- (9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and high chiral purity. Each lot is characterized using advanced analytical techniques, including chiral HPLC, GC, NMR, and optical rotation measurement. A comprehensive Certificate of Analysis (COA) detailing identity, purity, enantiomeric excess, and impurity profile is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from strong acids and incompatible organic solvents. 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
Purity (GC)	≥ 95.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0%
Specific Optical Rotation	Contact for details
Water Content (KF)	≤ 0.5%

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