Description

2-Cyclopenten-1-One,5-Ethyl-4-Methyl-5-Phenyl-,(4R,5S)-(9Ci) is a high-purity, stereochemically defined chiral building block of significant interest in advanced organic synthesis. Its value lies in its complex, functionalized cyclopentenone core, which serves as a versatile precursor for constructing intricate molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical and fine chemical industries, particularly for developing novel active pharmaceutical ingredients (APIs) and complex natural product analogs.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of complex drug candidates and bioactive molecules.
• Asymmetric Catalysis Research: Used as a substrate or ligand precursor in the development of new catalytic systems.
• Natural Product Synthesis: Serves as a critical building block in the total synthesis of complex natural products with cyclopentanoid structures.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, and fragrances requiring high stereochemical purity.
• Material Science Research: Investigated as a monomer or precursor for novel polymers and advanced organic materials.

Basic Information

Product Name	2-Cyclopenten-1-One,5-Ethyl-4-Methyl-5-Phenyl-,(4R,5S)-(9Ci)
CAS No.	680620-57-9
Molecular Formula	C14H16O
Molecular Weight	200.28 g/mol
Synonyms	(4R,5S)-5-Ethyl-4-methyl-5-phenylcyclopent-2-en-1-one; (4R,5S)-5-Ethyl-4-methyl-5-phenyl-2-cyclopenten-1-one; 5-Ethyl-4-methyl-5-phenyl-2-cyclopenten-1-one, (4R,5S)-; (4R,5S)-5-Phenyl-5-ethyl-4-methyl-2-cyclopenten-1-one; Chiral Cyclopentenone Derivative
EINECS	Contact for details

Quality Control

We maintain stringent quality control protocols for our chiral intermediates. Each batch of 2-Cyclopenten-1-One,5-Ethyl-4-Methyl-5-Phenyl-,(4R,5S)-(9Ci) is characterized and tested to ensure identity, purity, and enantiomeric excess (ee) meet exacting standards. A comprehensive Certificate of Analysis (COA) is provided with every shipment, detailing results from analytical methods including HPLC, GC, NMR, and optical rotation measurement.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque or amber packaging.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0% ee
Melting Point	Contact for details
Loss on Drying	≤ 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.