Description

Cyclopentanecarboxylic Acid, 3-Methyl-, Methyl Ester, cis- (9Ci) is a high-purity, specialized organic ester compound valued for its role as a versatile chiral building block and intermediate in advanced chemical synthesis. Its defined stereochemistry and functional group make it a critical component for researchers and manufacturers requiring precise molecular architecture. This product is essential for industries focused on developing pharmaceuticals, agrochemicals, and high-performance materials where structural specificity directly impacts efficacy and performance.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with cyclopentane-based frameworks.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where its structure contributes to biological activity.
• Flavor & Fragrance Ingredient: Acts as a precursor for the development of specific ester-based aroma compounds and flavorants.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for constructing complex organic molecules, including natural product analogs and specialty chemicals.
• Material Science Research: Utilized as a monomer or modifying agent in the development of novel polymers and functional materials.
• Catalysis & Ligand Development: Functions as a starting material for the synthesis of chiral ligands used in asymmetric catalysis.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 3-Methyl-, Methyl Ester, cis- (9Ci)
CAS No.	126110-36-9
Molecular Formula	C8H14O2
Molecular Weight	142.20 g/mol
Synonyms	cis-3-Methylcyclopentanecarboxylic acid methyl ester; Methyl cis-3-methylcyclopentanecarboxylate; (1R,3S)-3-Methylcyclopentanecarboxylic acid methyl ester; (1S,3R)-3-Methylcyclopentanecarboxylic acid methyl ester; 3-Methylcyclopentanecarboxylic acid methyl ester, cis-; Methyl 3-methylcyclopentanecarboxylate
EINECS	Contact for details

Quality Control

Every batch of Cyclopentanecarboxylic Acid, 3-Methyl-, Methyl Ester, cis- (9Ci) is manufactured under strict quality management systems. Our products undergo rigorous analytical testing, including chiral purity analysis by GC or HPLC, to ensure compliance with exacting customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment and is available upon request.

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 strong bases and incompatible materials such as strong oxidizing agents. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Chiral Purity (GC/HPLC)	≥ 98.0% cis-isomer
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.