Description

(R)-3-Oxo-Cyclopentaneacetic Acid Methyl Ester is a high-purity chiral building block and key synthetic intermediate of significant importance in advanced organic synthesis. Its value lies in its defined stereochemistry and functional groups, which are crucial for constructing complex molecular architectures with high enantiomeric purity. This compound is primarily needed by research institutions and manufacturers in the pharmaceutical and fine chemical industries for the development of active pharmaceutical ingredients (APIs), agrochemicals, and other specialty chemicals.

Application

• Pharmaceutical Intermediate: A critical chiral synthon for the synthesis of prostaglandins, steroid analogs, and other bioactive molecules requiring the (R)-configuration.
• Asymmetric Synthesis: Used as a starting material or intermediate in catalytic asymmetric reactions to introduce chiral centers into target molecules.
• Fine Chemical Production: Serves as a building block for fragrances, flavors, and advanced materials where specific stereochemistry impacts product performance.
• Agrochemical Research: Employed in the development of chiral pesticides and herbicides, where the biological activity is often enantiomer-specific.
• Academic & R&D: A valuable reagent for methodological development in organic chemistry and for studying stereoselective reaction pathways.

Basic Information

Product Name	(R)-3-Oxo-Cyclopentaneacetic Acid Methyl Ester
CAS No.	84621-34-1
Molecular Formula	C9H14O3
Molecular Weight	170.21 g/mol
Synonyms	(R)-Methyl 3-oxocyclopentaneacetate; (R)-3-Oxocyclopentylacetic acid methyl ester; Methyl (R)-3-oxocyclopentaneacetate; (R)-2-(3-Oxocyclopentyl)acetic acid methyl ester; (R)-3-Oxocyclopentan-1-ylacetic acid methyl ester; (R)-3-Ketocyclopentaneacetic acid methyl ester; (R)-Methyl 2-(3-oxocyclopentyl)acetate
EINECS	Contact for details

Quality Control

Our (R)-3-Oxo-Cyclopentaneacetic Acid Methyl Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral HPLC for enantiomeric excess (ee) and standard purity assays, to ensure it meets the high standards required for research and synthesis. Certificates of Analysis (COA) with detailed specifications are available upon request to support your quality assurance and regulatory needs.

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). The product should be kept under an inert atmosphere for long-term storage to maintain 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% ee
Water Content (KF)	≤ 0.5%

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