Description

1-Cyclopentene-1-Carboxylicacid,3-Hydroxy-2-Methyl-,Methylester,(3S)- is a high-value, optically active chiral building block with a complex cyclopentene core structure. This compound is critical for the synthesis of advanced pharmaceutical intermediates and fine chemicals, where its stereochemistry and functional groups enable precise molecular construction. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for creating novel active ingredients and complex organic molecules.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the development of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring complex, stereochemically defined molecules.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides where specific stereochemistry impacts biological activity.
• Asymmetric Catalysis & Ligand Development: Serves as a precursor for chiral ligands or catalysts used in enantioselective synthesis.
• Fine Chemical Production: Employed in the multistep synthesis of specialty chemicals, flavors, and fragrances requiring high purity and specific configuration.
• Academic & Industrial R&D: A valuable tool for methodological studies in organic synthesis and for exploring new chemical spaces in discovery chemistry.

Basic Information

Product Name	1-Cyclopentene-1-Carboxylicacid,3-Hydroxy-2-Methyl-,Methylester,(3S)-
CAS No.	459174-10-8
Molecular Formula	C9H14O3
Molecular Weight	170.21 g/mol
Synonyms	(3S)-3-Hydroxy-2-methyl-1-cyclopentene-1-carboxylic acid methyl ester; Methyl (3S)-3-hydroxy-2-methyl-1-cyclopentene-1-carboxylate; (S)-3-Hydroxy-2-methyl-1-cyclopentene-1-carboxylic acid methyl ester; 1-Cyclopentene-1-carboxylic acid, 3-hydroxy-2-methyl-, methyl ester, (3S)-; (3S)-3-Hydroxy-2-methylcyclopent-1-ene-1-carboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems. Every batch is characterized and tested using advanced analytical techniques including HPLC, GC, NMR, and chiral analysis to ensure high chemical and enantiomeric purity. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area. For long-term storage, keep at 2-8°C under an inert atmosphere. Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0%
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.