Description

3-Cyclopentene-1-Carboxylicacid,2-Methyl-,Methylester,(1S,2S)-(9Ci) is a high-purity, stereochemically defined chiral building block essential for advanced organic synthesis. This compound matters because it provides a rigid, functionalized cyclopentene scaffold with defined stereochemistry, enabling the precise construction of complex molecular architectures. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for applications such as asymmetric synthesis and the development of novel active ingredients.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the asymmetric synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a functionalized cyclopentane or cyclopentene core.
• Agrochemical Research: Used in the development of novel herbicides, fungicides, and insecticides where specific stereochemistry impacts biological activity.
• Asymmetric Catalysis: Serves as a precursor or ligand component in the development of chiral catalysts for stereoselective transformations.
• Fine Chemical Synthesis: Employed in academic and industrial research labs for constructing complex natural products and specialty chemicals.
• Material Science Precursor: Potential use as a monomer or building block for specialized polymers with unique structural properties.

Basic Information

Product Name	3-Cyclopentene-1-Carboxylicacid,2-Methyl-,Methylester,(1S,2S)-(9Ci)
CAS No.	777918-08-8
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	(1S,2S)-2-Methyl-3-cyclopentene-1-carboxylic acid methyl ester; Methyl (1S,2S)-2-methyl-3-cyclopentene-1-carboxylate; (1S,2S)-2-Methylcyclopent-3-ene-1-carboxylic acid methyl ester; (1S-cis)-2-Methyl-3-cyclopentene-1-carboxylic Acid Methyl Ester; (1S,2S)-rel-2-Methyl-3-cyclopentene-1-carboxylic Acid Methyl Ester; Methyl (1S,2S)-2-methylcyclopent-3-ene-1-carboxylate
EINECS	Contact for details

Quality Control

Our production of 3-Cyclopentene-1-Carboxylicacid,2-Methyl-,Methylester,(1S,2S)-(9Ci) adheres to stringent quality management protocols to ensure batch-to-batch consistency and high chemical purity. All materials are characterized using advanced analytical techniques including chiral HPLC, GC, NMR, and IR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, enantiomeric excess, and impurity profiles is provided with each shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	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.