Description

Cyclopentanecarboxylic Acid, 1-Hydroxy-2-(1-Methylethenyl)-, Ethyl Ester, (1R,2R)-Rel-(+)- (9Ci) is a high-purity, chiral intermediate of significant interest in advanced organic synthesis. This compound matters for its role as a key building block in the production of complex, stereochemically defined molecules, offering a critical advantage in the development of enantiomerically pure products. It is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries for applications requiring precise stereochemical control.

Application

• Pharmaceutical Intermediate: A critical chiral synthon for the research and development of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring high stereoselectivity.
• Agrochemical Synthesis: Used in the production of advanced, enantiomerically pure pesticides and herbicides, where specific stereochemistry can enhance efficacy and reduce environmental impact.
• Fine Chemical Manufacturing: Serves as a versatile building block for synthesizing complex fragrances, flavors, and specialty chemicals with defined optical activity.
• Catalyst and Ligand Development: Employed in the synthesis of novel chiral catalysts and ligands used in asymmetric synthesis to induce stereoselectivity in chemical reactions.
• Academic and Industrial R&D: A valuable reagent for methodological studies in organic chemistry, enabling the exploration of new synthetic pathways and stereochemical outcomes.

Basic Information

Item	Details
Product Name	Cyclopentanecarboxylic Acid, 1-Hydroxy-2-(1-Methylethenyl)-, Ethyl Ester, (1R,2R)-Rel-(+)- (9Ci)
CAS No.	619297-01-7
Molecular Formula	C11H18O3
Molecular Weight	198.26 g/mol
Synonyms	(1R,2R)-rel-1-Hydroxy-2-isopropenylcyclopentanecarboxylic acid ethyl ester; Ethyl (1R,2R)-rel-1-hydroxy-2-(prop-1-en-2-yl)cyclopentane-1-carboxylate; (+)-rel-(1R,2R)-1-Hydroxy-2-isopropenylcyclopentanecarboxylic Acid Ethyl Ester; Ethyl (1R,2R)-1-hydroxy-2-vinylcyclopentane-1-carboxylate (related); Chiral cyclopentane ester intermediate; 1-Hydroxy-2-isopropenylcyclopentanecarboxylic acid ethyl ester, (1R,2R)-rel-(+)-
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 1-Hydroxy-2-(1-Methylethenyl)-, Ethyl Ester, (1R,2R)-Rel-(+)- (9Ci) is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. All products undergo rigorous analytical testing, including chiral purity analysis by HPLC, to meet exacting research and process development standards. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and chiral excess is provided with every shipment.

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). Keep away from strong acids and incompatible organic solvents. For long-term storage, consider an inert atmosphere to preserve optimal quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee (enantiomeric excess)
Water Content (KF)	≤ 0.5%

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