Description

Cyclopentanone, 2-Ethyl-3-Hydroxy-2-Pentyl-, (2R,3R)-Rel-(-)- (9Ci) is a high-purity, stereochemically defined chiral building block of significant interest in advanced organic synthesis. Its specific (2R,3R) configuration and functional group array make it a valuable precursor for the development of complex, biologically active molecules. This compound is primarily sought after by research institutions and pharmaceutical companies engaged in the synthesis of novel active pharmaceutical ingredients (APIs), agrochemicals, and fine chemicals where precise stereochemistry is critical for efficacy.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of complex drug candidates, particularly in therapeutic areas requiring high stereochemical purity.
• Agrochemical Research: Used in the development of novel, stereoselective pesticides and herbicides where specific enantiomers exhibit enhanced biological activity.
• Fine Chemical Synthesis: Serves as a versatile building block for creating specialty chemicals, flavors, and fragrances with defined stereocenters.
• Academic & R&D: Employed in methodological research for developing new asymmetric synthesis and catalysis techniques.
• Material Science Precursor: Potential use in the synthesis of specialized polymers or liquid crystals where chiral monomers are required.

Basic Information

Product Name	Cyclopentanone, 2-Ethyl-3-Hydroxy-2-Pentyl-, (2R,3R)-Rel-(-)- (9Ci)
CAS No.	596101-13-2
Molecular Formula	C12H22O2
Molecular Weight	198.30 g/mol
Synonyms	(-)-2-Ethyl-3-hydroxy-2-pentylcyclopentanone; (2R,3R)-2-Ethyl-3-hydroxy-2-pentylcyclopentanone; rel-(2R,3R)-2-Ethyl-3-hydroxy-2-pentylcyclopentanone; 2-Ethyl-3-hydroxy-2-pentylcyclopentanone (2R,3R)-rel-(-)-; 2-Pentyl-2-ethyl-3-hydroxycyclopentanone; Chiral Hydroxy Cyclopentanone Derivative
EINECS	Contact for details

Quality Control

Our production of this chiral intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high enantiomeric 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 (assay), enantiomeric excess (ee), and impurity profile is provided with every shipment, supporting cGMP and ISO 9001 standards for research and development use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (typically 15-25°C). This material is moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere for long-term storage to maintain stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0% ee
Optical Rotation	Specified range provided per COA
Water Content (KF)	≤ 0.5%

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