Description

Cyclopentanecarboxaldehyde, 2-Methyl-5-(1-Methylethenyl)-, (1Alpha,2Alpha,5Alpha)- (9Ci) is a specialized chiral aldehyde derivative of cyclopentane, serving as a high-value intermediate in fine chemical synthesis. Its unique bicyclic structure and defined stereochemistry make it a critical building block for creating complex molecules with specific spatial orientations. This compound is essential for R&D and production chemists in the pharmaceutical and advanced fragrance industries, where precise molecular architecture dictates biological activity and olfactory properties.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of prostaglandin analogs, antiviral agents, and other stereospecific therapeutics.
• Advanced Fragrance & Flavor Synthesis: Used to create novel, complex odorants and flavoring agents with unique woody, amber, or musky notes due to its terpenoid-like structure.
• Agrochemical Research: Serves as a precursor in the development of new generation pesticides and herbicides that require specific stereochemistry for efficacy and environmental compatibility.
• Material Science & Polymer Chemistry: Acts as a functional monomer or cross-linking agent for producing specialty polymers with tailored thermal or mechanical properties.
• Organic Synthesis & Catalysis: A valuable substrate in asymmetric synthesis and catalytic reactions for constructing complex natural product analogs and other fine chemicals.

Basic Information

Product Name	Cyclopentanecarboxaldehyde, 2-Methyl-5-(1-Methylethenyl)-, (1Alpha,2Alpha,5Alpha)- (9Ci)
CAS No.	177569-92-5
Molecular Formula	C10H16O
Molecular Weight	152.23 g/mol
Synonyms	(1R,2R,5R)-2-Methyl-5-(prop-1-en-2-yl)cyclopentane-1-carbaldehyde; (1α,2α,5α)-2-Methyl-5-(1-methylethenyl)cyclopentanecarboxaldehyde; 2-Methyl-5-isopropenylcyclopentanecarboxaldehyde; (1R,2R,5R)-2-Methyl-5-isopropenylcyclopentanecarbaldehyde; A Chiral Cyclopentane Aldehyde; 2-Methyl-5-(prop-1-en-2-yl)cyclopentane-1-carbaldehyde (stereoisomer); CAS 177569-92-5
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxaldehyde, 2-Methyl-5-(1-Methylethenyl)-, (1Alpha,2Alpha,5Alpha)- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity analysis by GC or HPLC, to ensure high stereochemical purity and batch-to-batch consistency critical for sensitive synthetic applications. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided and can be tailored to meet specific customer or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen) in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Due to its sensitivity to oxidation, the container should be kept sealed after initial use to minimize exposure to air.

Specification

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

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