Description

Cyclopentanecarboxylic Acid, 2-Hydroxy-, Methyl Ester, (1R-Cis)- (9Ci) is a high-purity chiral intermediate of significant importance in advanced organic synthesis. Its defined stereochemistry and functional groups make it a valuable building block for constructing complex molecular architectures. This compound is primarily sought by research institutions and manufacturers in the pharmaceutical and fine chemical industries for the development of active pharmaceutical ingredients (APIs) and specialty chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and production of stereospecific drugs and bioactive molecules.
• Asymmetric Synthesis: Used as a starting material or precursor in catalytic asymmetric reactions to introduce the (1R-cis) configuration.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, including flavors, fragrances, and advanced materials.
• Academic & Industrial Research: Serves as a standard or reagent in methodological development and process chemistry studies.
• Agrochemical Synthesis: Potential use as an intermediate in creating chiral active ingredients for crop protection agents.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 2-Hydroxy-, Methyl Ester, (1R-Cis)- (9Ci)
CAS No.	122331-02-6
Molecular Formula	C8H14O3
Molecular Weight	158.20 g/mol
Synonyms	(1R,2S)-2-Hydroxycyclopentanecarboxylic acid methyl ester; Methyl (1R,2S)-2-hydroxycyclopentanecarboxylate; (1R-cis)-2-Hydroxycyclopentanecarboxylic Acid Methyl Ester; cis-2-Hydroxycyclopentanecarboxylic acid methyl ester (1R,2S)-; L-trans-2-Hydroxycyclopentanecarboxylic acid methyl ester; Methyl (1R,2S)-2-hydroxy-1-cyclopentanecarboxylate; (1R,2S)-Methyl 2-hydroxycyclopentanecarboxylate
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 2-Hydroxy-, Methyl Ester, (1R-Cis)- (9Ci) is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis, to ensure it meets the stringent requirements for pharmaceutical R&D and synthesis. Certificates of Analysis (COA) detailing identity, purity, and enantiomeric excess 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 (typically 15-25°C). Keep away from heat sources and incompatible materials. For long-term storage under inert atmosphere, please contact us for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Enantiomeric Purity (Chiral HPLC)	≥ 99.0% ee
Specific Rotation	Contact for details
Water Content (KF)	≤ 0.5%

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