Description

1-Cyclopentene-1-Carboxaldehyde, 4-Ethyl-2-Methyl-, (4S)- (9Ci) is a chiral, high-purity chemical intermediate of significant interest in advanced organic synthesis. Its value lies in its unique cyclopentene aldehyde structure, which serves as a versatile building block for constructing complex, stereodefined molecular architectures. This compound is primarily needed by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of novel active pharmaceutical ingredients (APIs), particularly in medicinal chemistry programs targeting complex, stereospecific molecules.
• Agrochemical Synthesis: Used in the construction of advanced, biologically active compounds for crop protection and pesticide development, leveraging its reactive aldehyde functionality.
• Fine Chemical Production: Serves as a specialized building block in the synthesis of flavors, fragrances, and other high-value specialty chemicals requiring specific stereochemistry.
• Academic & Industrial Research: A valuable reagent in methodological chemistry research for developing new asymmetric synthesis routes and catalytic processes.
• Material Science Precursor: Potential use in the synthesis of specialized monomers or ligands for advanced polymeric materials or catalytic systems.

Basic Information

Product Name	1-Cyclopentene-1-Carboxaldehyde, 4-Ethyl-2-Methyl-, (4S)- (9Ci)
CAS No.	362607-72-5
Molecular Formula	C9H14O
Molecular Weight	138.21 g/mol
Synonyms	(4S)-4-Ethyl-2-methyl-1-cyclopentene-1-carboxaldehyde; (S)-4-Ethyl-2-methylcyclopent-1-ene-1-carbaldehyde; 4-Ethyl-2-methyl-1-cyclopentene-1-carboxaldehyde, (4S)-; 362607-72-5; (S)-4-Ethyl-2-methyl-1-cyclopentene-1-carboxaldehyde; (4S)-4-Ethyl-2-methylcyclopent-1-ene-1-carbaldehyde
EINECS	Contact for details

Quality Control

Our production of 1-Cyclopentene-1-Carboxaldehyde, 4-Ethyl-2-Methyl-, (4S)- (9Ci) adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. The material is 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 needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. Keep away from heat, sparks, and open flame. Due to its sensitivity, minimize exposure to air and moisture during handling.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 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.