Description

2-Cyclopenten-1-One,5-Ethoxy-4-Hydroxy-5-Methoxy-,Oxime,(4R,5S)-Rel-(9Ci) is a high-purity, stereochemically defined oxime derivative of a substituted cyclopentenone, serving as a critical chiral building block and synthetic intermediate. Its precise stereochemistry and functional group array make it invaluable for constructing complex molecular architectures with high enantiomeric purity. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, particularly for the synthesis of active pharmaceutical ingredients (APIs) and advanced fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of novel drug candidates, especially in classes requiring cyclopentenone-based scaffolds.
• Agrochemical Research: Used in developing advanced pesticides and herbicides where specific stereochemistry influences biological activity.
• Asymmetric Synthesis: Serves as a precursor or auxiliary in catalytic asymmetric reactions to introduce chirality into target molecules.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, and fragrances requiring high isomeric purity.
• Academic & R&D Laboratories: A valuable reference standard and building block for methodological development in organic and medicinal chemistry.

Basic Information

Product Name	2-Cyclopenten-1-One,5-Ethoxy-4-Hydroxy-5-Methoxy-,Oxime,(4R,5S)-Rel-(9Ci)
CAS No.	349611-70-7
Molecular Formula	C9H15NO4
Molecular Weight	201.22 g/mol
Synonyms	(4R,5S)-5-Ethoxy-4-hydroxy-5-methoxy-2-cyclopenten-1-one oxime; Rel-(4R,5S)-5-Ethoxy-4-hydroxy-5-methoxy-2-cyclopenten-1-one oxime; 5-Ethoxy-4-hydroxy-5-methoxy-2-cyclopenten-1-one oxime (4R,5S)-rel-; (4R,5S)-rel-5-Ethoxy-4-hydroxy-5-methoxy-2-cyclopenten-1-one oxime; 349611-70-7; 2-Cyclopenten-1-one, 5-ethoxy-4-hydroxy-5-methoxy-, oxime, (4R,5S)-rel-; (4R,5S)-rel-5-Ethoxy-4-hydroxy-5-methoxy-2-cyclopenten-1-one oxime (9CI)
EINECS	Contact for details

Quality Control

Our 2-Cyclopenten-1-One,5-Ethoxy-4-Hydroxy-5-Methoxy-,Oxime,(4R,5S)-Rel-(9Ci) is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high chemical purity. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles. We adhere to cGMP principles where applicable, and our quality systems are designed to meet the stringent requirements of pharmaceutical and advanced synthetic applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

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%
Water Content (KF)	≤ 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.