Description

3-Cyclopentene-1-Carboxylicacid,3-Methyl-,Methylester,(R)-(9Ci) is a high-purity chiral building block of significant interest in advanced organic synthesis. Its value lies in its defined stereochemistry and functionalized cyclopentene core, which serves as a key precursor for complex molecular architectures. This compound is primarily needed by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs) and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a critical chiral synthon in the multi-step synthesis of potential drug candidates, particularly those requiring a stereodefined cyclopentane or cyclopentene moiety.
• Asymmetric Synthesis: Used as a starting material or intermediate in catalytic asymmetric reactions to construct molecules with high enantiomeric purity for agrochemical and pharmaceutical applications.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, and fragrances where specific stereochemistry impacts the final product's properties.
• Academic & Industrial R&D: A valuable reagent for methodological development in organic chemistry and for exploring new reaction pathways in process chemistry.
• Ligand and Catalyst Development: Can be utilized to synthesize novel chiral ligands or organocatalysts for use in enantioselective transformations.

Basic Information

Product Name	3-Cyclopentene-1-Carboxylicacid,3-Methyl-,Methylester,(R)-(9Ci)
CAS No.	121521-07-1
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	(R)-3-Methyl-3-cyclopentene-1-carboxylic acid methyl ester; Methyl (3R)-3-methyl-3-cyclopentene-1-carboxylate; (R)-3-Methyl-3-cyclopentenecarboxylic acid methyl ester; 3-Cyclopentene-1-carboxylic acid, 3-methyl-, methyl ester, (R)-; (R)-Methyl 3-methyl-3-cyclopentene-1-carboxylate; (R)-3-Methylcyclopent-3-ene-1-carboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our production of 3-Cyclopentene-1-Carboxylicacid,3-Methyl-,Methylester,(R)-(9Ci) adheres to stringent internal quality standards to ensure batch-to-batch consistency and high chemical purity. Each lot is characterized using advanced analytical techniques, including chiral HPLC, to confirm identity, enantiomeric excess, and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

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

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