Description

Cyclopentanecarboxylic Acid, 2-Hydroxy-1-Methyl-5-(1-Methylethenyl)-, Methyl Ester, (1R,2S,5R)-Rel- (9Ci) is a high-purity, stereochemically defined chiral building block of significant interest in advanced organic synthesis. Its complex structure, featuring multiple chiral centers and functional groups, makes it a valuable precursor for the development of novel active pharmaceutical ingredients (APIs) and fine chemicals. This compound is primarily targeted at research and development teams in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create complex molecular architectures with high enantiomeric purity.

Application

• Pharmaceutical Intermediate: Serves as a critical chiral synthon in the multi-step synthesis of complex drug candidates, particularly in medicinal chemistry programs.
• Agrochemical Research: Used as a building block for developing novel, enantiomerically pure pesticides and herbicides with targeted biological activity.
• Asymmetric Synthesis: Employed in catalytic and stoichiometric asymmetric reactions to construct complex natural product analogs and other high-value chiral molecules.
• Fragrance & Flavor Chemistry: Potential use in the synthesis of sophisticated, stereochemically defined aroma chemicals and flavoring agents.
• Material Science Research: Acts as a monomer or precursor for specialized polymers and advanced organic materials requiring specific spatial configurations.
• Academic & Contract Research: A key reagent for universities and CROs (Contract Research Organizations) exploring new synthetic methodologies and chemical biology.

Basic Information

Item	Detail
Product Name	Cyclopentanecarboxylic Acid, 2-Hydroxy-1-Methyl-5-(1-Methylethenyl)-, Methyl Ester, (1R,2S,5R)-Rel- (9Ci)
CAS No.	820245-19-0
Molecular Formula	C11H18O3
Molecular Weight	198.26 g/mol
Synonyms	(1R,2S,5R)-2-Hydroxy-1-methyl-5-(prop-1-en-2-yl)cyclopentane-1-carboxylic acid methyl ester; rel-(1R,2S,5R)-2-Hydroxy-1-methyl-5-(1-methylethenyl)cyclopentanecarboxylic acid methyl ester; Methyl (1R,2S,5R)-2-hydroxy-1-methyl-5-(prop-1-en-2-yl)cyclopentane-1-carboxylate; A chiral cyclopentane derivative; CAS 820245-19-0
EINECS	Contact for details

Quality Control

Every batch of Cyclopentanecarboxylic Acid, 2-Hydroxy-1-Methyl-5-(1-Methylethenyl)-, Methyl Ester, (1R,2S,5R)-Rel- (9Ci) is manufactured under strict quality management systems. We employ advanced analytical techniques, including chiral HPLC, GC, and NMR, to ensure high chemical and enantiomeric purity suitable for demanding research and development applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee traceability and consistency.

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). This compound is light-sensitive and easily oxidized; for long-term storage, consider keeping under an inert atmosphere (e.g., nitrogen or argon) to maintain optimal stability and purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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