Description

Cyclopentanecarboxylic Acid, 2-Methyl-3-Oxo-, Methyl Ester, (1S,2R)- (9Ci) is a high-purity, chiral organic compound serving as a critical building block in advanced chemical synthesis. Its defined stereochemistry and functionalized cyclopentane ring make it an invaluable intermediate for creating complex molecules with specific three-dimensional structures. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, where it is used to synthesize active ingredients and novel chemical entities.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of prostaglandins, antiviral agents, and other therapeutic compounds.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where its stereochemistry can influence biological activity and selectivity.
• Fine Chemical Manufacturing: Serves as a versatile precursor in the multi-step synthesis of complex flavors, fragrances, and specialty chemicals.
• Academic & Industrial R&D: Employed in medicinal chemistry and process chemistry research for exploring new synthetic routes and developing novel molecular scaffolds.
• Asymmetric Catalysis Substrate: Utilized in studies and processes involving asymmetric synthesis to create enantiomerically pure products.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 2-Methyl-3-Oxo-, Methyl Ester, (1S,2R)- (9Ci)
CAS No.	777918-06-6
Molecular Formula	C8H12O3
Molecular Weight	156.18 g/mol
Synonyms	(1S,2R)-2-Methyl-3-oxocyclopentanecarboxylic acid methyl ester; Methyl (1S,2R)-2-methyl-3-oxocyclopentanecarboxylate; (1S,2R)-Methyl 2-methyl-3-oxocyclopentanecarboxylate; (1S,2R)-2-Methyl-3-oxocyclopentane-1-carboxylic acid methyl ester; (1S,2R)-Methyl 2-methyl-3-oxocyclopentane-1-carboxylate; (1S,2R)-2-Methyl-3-oxocyclopentylcarboxylic acid methyl ester; (1S,2R)-enantiomer of Methyl 2-methyl-3-oxocyclopentanecarboxylate
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 2-Methyl-3-Oxo-, Methyl Ester, (1S,2R)- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC, to ensure high enantiomeric excess (ee) and chemical purity. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to guarantee consistent quality and traceability for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. The product should be handled under an inert atmosphere if prolonged exposure is anticipated during use.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0% ee
Specific Rotation	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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