Description

1-Cyclopentene-1-Carboxaldehyde, 2,4-Dimethyl-, (R)- (9Ci) is a chiral, high-purity aldehyde derivative of a substituted cyclopentene, serving as a valuable and versatile chiral building block in advanced organic synthesis. Its defined stereochemistry and reactive aldehyde functional group make it a critical intermediate for constructing complex molecules with precise three-dimensional architecture. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in the development of antiviral, anti-inflammatory, and central nervous system (CNS) drugs.
• Agrochemical Synthesis: Used in the production of advanced chiral pesticides, herbicides, and fungicides, where stereochemistry can significantly influence biological activity and environmental profile.
• Asymmetric Catalysis Ligand Precursor: Serves as a starting material for the synthesis of novel chiral ligands and organocatalysts used in enantioselective transformations.
• Flavor & Fragrance Chemistry: Acts as a building block for creating complex, stereochemically-defined aroma molecules and flavor compounds for high-end applications.
• Material Science Research: Employed in the development of chiral polymers, liquid crystals, and other functional materials with specific optical or electronic properties.
• Academic & Process R&D: A valuable reagent for methodological development in organic chemistry and for scaling up synthetic routes in process chemistry.

Basic Information

Product Name	1-Cyclopentene-1-Carboxaldehyde, 2,4-Dimethyl-, (R)- (9Ci)
CAS No.	82507-55-9
Molecular Formula	C8H12O
Molecular Weight	124.18 g/mol
Synonyms	(R)-2,4-Dimethyl-1-cyclopentene-1-carboxaldehyde; (R)-2,4-Dimethylcyclopent-1-ene-1-carbaldehyde; (1R)-2,4-Dimethyl-1-cyclopentene-1-carboxaldehyde; (R)-2,4-Dimethyl-1-cyclopentenecarboxaldehyde; 2,4-Dimethyl-1-cyclopentene-1-carboxaldehyde, (R)-; (R)-2,4-Dimethylcyclopent-1-enecarbaldehyde; (R)-2,4-Dimethyl-1-cyclopentenecarbaldehyde
EINECS	Contact for details

Quality Control

Our 1-Cyclopentene-1-Carboxaldehyde, 2,4-Dimethyl-, (R)- (9Ci) is produced under strict quality management protocols to ensure batch-to-batch consistency and high chemical purity. Each lot undergoes comprehensive analytical testing, including chiral purity determination, to meet the stringent requirements of advanced synthetic applications. A detailed Certificate of Analysis (COA) providing specifications for identity, purity (by GC/HPLC), enantiomeric excess (ee), and impurity profile is supplied with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. Allow the container to reach room temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Enantiomeric Excess (ee)	≥ 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.