Description

Ethanone, 1-[(5R)-5-Methyl-1-Cyclopenten-1-Yl]- (9Ci) is a high-purity chiral ketone building block of significant interest in advanced organic synthesis. This compound matters for its role as a key intermediate in the production of complex molecules, particularly in the pharmaceutical and fine chemical sectors, where stereochemical control is paramount. Industries requiring sophisticated chiral synthons for drug discovery, agrochemical development, and specialty fragrance creation will find this material essential for their research and manufacturing processes.

Application

• Pharmaceutical Intermediate: A critical chiral building block for the synthesis of active pharmaceutical ingredients (APIs), especially in therapeutic areas requiring specific stereochemistry.
• Agrochemical Synthesis: Used in the research and development of advanced pesticides and herbicides where the (5R) stereocenter imparts specific biological activity.
• Fine Chemical Production: Serves as a precursor in the manufacture of complex flavors, fragrances, and other high-value specialty chemicals.
• Academic & Industrial Research: A valuable reagent for methodological development in asymmetric synthesis and catalysis studies within R&D laboratories.
• Material Science: Potential intermediate for creating novel chiral polymers or liquid crystals with specific optical properties.

Basic Information

Product Name	Ethanone, 1-[(5R)-5-Methyl-1-Cyclopenten-1-Yl]- (9Ci)
CAS No.	521086-81-7
Molecular Formula	C8H12O
Molecular Weight	124.18 g/mol
Synonyms	(5R)-5-Methyl-1-cyclopenten-1-ylethanone; 1-[(5R)-5-Methyl-1-cyclopenten-1-yl]ethanone; (R)-5-Methyl-1-cyclopenten-1-yl methyl ketone; (R)-1-(5-Methylcyclopent-1-en-1-yl)ethanone; 521086-81-7; (5R)-5-Methylcyclopent-1-en-1-yl methyl ketone; Chiral Cyclopentenyl Methyl Ketone
EINECS	Contact for details

Quality Control

Our production of Ethanone, 1-[(5R)-5-Methyl-1-Cyclopenten-1-Yl]- (9Ci) adheres to stringent quality management systems to ensure batch-to-batch consistency and high chiral purity. Each lot undergoes comprehensive analytical testing, including chiral HPLC and GC analysis, to verify identity, purity, and enantiomeric excess. Certificates of Analysis (COA) detailing all specifications are provided and available upon request, supporting compliance in regulated applications.

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 an 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)	≥ 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.