Description

Cyclopentanecarboxylic Acid, 1-Ethyl-2-(Hydroxyimino)-, Ethyl Ester, (1S)- (9Ci) is a high-purity, chiral organic compound of significant interest in advanced synthetic chemistry. This molecule serves as a critical chiral building block and intermediate for the development of novel active pharmaceutical ingredients (APIs) and fine chemicals. It is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for applications requiring precise stereochemical control.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and synthesis of novel drug candidates, particularly in central nervous system (CNS) and metabolic disorder therapeutics.
• Agrochemical Synthesis: Used in the development of advanced, enantiomerically pure pesticides and herbicides for enhanced efficacy and environmental safety.
• Catalyst Ligand Precursor: Serves as a starting material for synthesizing sophisticated chiral ligands used in asymmetric catalysis.
• Fine Chemical Production: Employed in the manufacture of complex, high-value specialty chemicals where the specific (1S) stereochemistry is required.
• Academic & Industrial Research: A valuable compound for methodological development in organic synthesis and stereochemistry studies.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 1-Ethyl-2-(Hydroxyimino)-, Ethyl Ester, (1S)- (9Ci)
CAS No.	335260-38-3
Molecular Formula	C10H17NO3
Molecular Weight	199.25 g/mol
Synonyms	(1S)-1-Ethyl-2-(hydroxyimino)cyclopentanecarboxylic acid ethyl ester; Ethyl (1S)-1-ethyl-2-(hydroxyimino)cyclopentanecarboxylate; (S)-1-Ethyl-2-(hydroxyimino)cyclopentanecarboxylic Acid Ethyl Ester; 1-Ethyl-2-(hydroxyimino)cyclopentanecarboxylic acid ethyl ester, (S)-; Cyclopentanecarboxylic acid, 1-ethyl-2-(hydroxyimino)-, ethyl ester, (1S)-; (1S)-1-Ethyl-2-(hydroxyimino)cyclopentane-1-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 1-Ethyl-2-(Hydroxyimino)-, Ethyl Ester, (1S)- (9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis by HPLC, to ensure it meets the high standards required for pharmaceutical R&D and production. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment.

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). Due to its light-sensitive nature and propensity for oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee (1S)
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.