Description

Cyclopentanecarboxylic Acid, 3-(Hydroxyimino)-, [S-(E)]- (9Ci) is a high-purity chiral building block and synthetic intermediate of significant interest in advanced organic synthesis. Its defined stereochemistry and functional groups make it a valuable precursor for constructing complex molecular architectures. This compound is primarily utilized by pharmaceutical R&D and fine chemical sectors for developing active pharmaceutical ingredients (APIs) and other specialty chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of novel therapeutic agents and active pharmaceutical ingredients (APIs).
• Asymmetric Synthesis: Employed as a building block for constructing complex, stereochemically defined molecules in medicinal chemistry and total synthesis projects.
• Agrochemical Research: Used in the synthesis of advanced crop protection agents and other bioactive compounds.
• Ligand and Catalyst Development: Serves as a precursor for creating novel chiral ligands and organocatalysts used in enantioselective transformations.
• Fine Chemical Production: Integral to the multistep synthesis of high-value specialty chemicals and performance materials.
• Academic and Industrial R&D: A valuable reagent for methodological studies in organic chemistry and process development.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 3-(Hydroxyimino)-, [S-(E)]- (9Ci)
CAS No.	180323-54-0
Molecular Formula	C6H9NO3
Molecular Weight	143.14 g/mol
Synonyms	(3E,5S)-3-(Hydroxyimino)cyclopentanecarboxylic Acid; [S-(E)]-3-(Hydroxyimino)cyclopentanecarboxylic Acid; (5S)-3-(Hydroxyimino)cyclopentanecarboxylic Acid; (S,E)-3-(Hydroxyimino)cyclopentanecarboxylic Acid; 3-Oximinocyclopentanecarboxylic Acid, (S-(E))-; (E)-(S)-3-(Hydroxyimino)cyclopentane-1-carboxylic Acid
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 3-(Hydroxyimino)-, [S-(E)]- (9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity and chemical identity verification, to ensure it meets the high standards required for research and synthesis. Certificates of Analysis (COA) detailing purity, enantiomeric excess, and other critical parameters 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 controlled room temperature (typically 15-25°C). Keep away from heat sources and incompatible materials. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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