Description

3-Cyclopentene-1-Carboxylicacid,2-Methyl-,Methylester,(1R,2R)-Rel-(9Ci) is a high-purity, stereochemically defined chiral building block essential for advanced organic synthesis. This compound matters as a key intermediate in the development of complex, biologically active molecules, offering precise control over molecular architecture. Pharmaceutical, agrochemical, and specialty chemical R&D laboratories need it for constructing novel active ingredients and fine chemicals where specific stereochemistry is critical for function.

Application

• Pharmaceutical Intermediate: A crucial chiral synthon for the research and development of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring complex, stereospecific molecules.
• Agrochemical Synthesis: Used in the production of advanced, enantiomerically pure pesticides and herbicides, where the specific stereoisomer can significantly impact biological activity and environmental profile.
• Asymmetric Catalysis Ligand Precursor: Serves as a starting material for the synthesis of sophisticated chiral ligands used in asymmetric hydrogenation and other enantioselective transformations.
• Fine Chemical & Flavor/Fragrance Intermediate: Employed in the synthesis of complex, high-value aroma chemicals and specialty fine chemicals where the defined stereochemistry imparts specific organoleptic properties.
• Academic & Industrial R&D: A valuable tool for chemists in academic institutions and corporate R&D departments exploring new synthetic methodologies and novel chemical entities.
• Material Science Research: Potential use as a monomer or precursor for creating novel polymers with specific chiral centers, aimed at advanced material applications.

Basic Information

Product Name	3-Cyclopentene-1-Carboxylicacid,2-Methyl-,Methylester,(1R,2R)-Rel-(9Ci)
CAS No.	63255-72-1
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	(1R,2R)-rel-2-Methyl-3-cyclopentene-1-carboxylic acid methyl ester; Methyl (1R,2R)-rel-2-methyl-3-cyclopentene-1-carboxylate; (rel)-(1R,2R)-2-Methyl-3-cyclopentene-1-carboxylic Acid Methyl Ester; Methyl 2-methyl-3-cyclopentene-1-carboxylate (relative stereochemistry); 2-Methyl-3-cyclopentene-1-carboxylic acid methyl ester, (1R,2R)-rel-; 3-Cyclopentene-1-carboxylic acid, 2-methyl-, methyl ester, (1R,2R)-rel-
EINECS	Contact for details

Quality Control

Our 3-Cyclopentene-1-Carboxylicacid,2-Methyl-,Methylester,(1R,2R)-Rel-(9Ci) is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including chiral HPLC, GC, and NMR, to confirm identity, stereochemical purity, and chemical purity. Certificates of Analysis (COA) detailing all specifications are provided with each shipment. We support compliance with cGMP and ISO standards for advanced intermediates.

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). The container should be kept tightly sealed in a dry environment to minimize exposure to moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% de (diastereomeric excess)
Water Content (KF)	≤ 0.5%

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