Description

Ethanone, 1-Phenyl-2-[(1R,4R)-4,5,5-Trimethyl-2-Cyclopenten-1-Yl]- (9Ci) is a high-purity, chiral ketone compound of significant interest in advanced organic synthesis. Its unique sterically hindered structure and defined stereochemistry make it a valuable building block for creating complex molecules with specific three-dimensional architectures. This compound is primarily utilized by R&D chemists and process development scientists in the pharmaceutical and fine chemical industries, where it serves as a key intermediate for novel active ingredients and specialty materials.

Application

• Pharmaceutical Intermediate: A critical chiral synthon for the research and development of new active pharmaceutical ingredients (APIs), particularly in stereoselective synthesis.
• Fragrance & Flavor Chemistry: Used as a precursor for synthesizing novel, complex odorants and flavor molecules with unique olfactory profiles due to its cyclopentene and phenyl ketone structure.
• Agrochemical Synthesis: Serves as a building block in the creation of advanced, stereochemically-defined crop protection agents and pesticides.
• Material Science Research: Employed in the development of specialty polymers and advanced organic materials where controlled molecular geometry is essential.
• Catalyst & Ligand Development: Acts as a starting material for the synthesis of novel chiral ligands and organocatalysts used in asymmetric catalysis.
• Academic & Industrial R&D: A valuable tool compound for methodological studies in organic chemistry, exploring new cycloaddition and functionalization reactions.

Basic Information

Product Name	Ethanone, 1-Phenyl-2-[(1R,4R)-4,5,5-Trimethyl-2-Cyclopenten-1-Yl]- (9Ci)
CAS No.	791104-74-0
Molecular Formula	C16H20O
Molecular Weight	228.33 g/mol
Synonyms	1-Phenyl-2-[(1R,4R)-4,5,5-trimethyl-2-cyclopenten-1-yl]ethanone; (1R,4R)-1-(2-Oxo-2-phenylethyl)-4,5,5-trimethyl-2-cyclopentene; (1R,4R)-4,5,5-Trimethyl-2-cyclopenten-1-yl phenyl ketone; Chiral Trimethylcyclopentenyl Phenyl Ketone; (R,R)-Trimethylcyclopentenyl Acetophenone; 791104-74-0; (1R,4R)-1-(Phenacyl)-4,5,5-trimethyl-2-cyclopentene
EINECS	Contact for details

Quality Control

Our Ethanone, 1-Phenyl-2-[(1R,4R)-4,5,5-Trimethyl-2-Cyclopenten-1-Yl]- (9Ci) is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis by HPLC, to ensure identity, strength, and compositional integrity. Certificates of Analysis (COA) detailing purity, enantiomeric excess, and impurity profiles are provided and available upon request, supporting compliance with cGMP guidelines for advanced intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place at a controlled room temperature (15-25°C). Due to its highly volatile nature, ensure containers are securely sealed when not in use and stored away from heat and ignition sources. For long-term storage, consider using sealed containers under an inert atmosphere.

Specification

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