Description

2-Cyclopentene-1-Acetaldehyde, 5-Ethylidene-4-Hydroxy-, (5Z)- (9Ci) is a specialized, high-value chemical intermediate characterized by its unique cyclopentene core functionalized with aldehyde and hydroxyl groups. This compound matters for its role as a versatile chiral building block in the synthesis of complex organic molecules, offering precise stereochemical control. It is primarily needed by research and development teams in the pharmaceutical and agrochemical industries for creating novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key chiral precursor in the synthesis of proprietary drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of advanced pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Acts as a building block for creating complex fragrances, flavors, and other specialty organic compounds.
• Academic & Industrial Research: Employed in organic chemistry research for methodology development and the construction of novel molecular architectures.
• Material Science: Investigated as a monomer or precursor for specialized polymers and advanced functional materials.

Basic Information

Product Name	2-Cyclopentene-1-Acetaldehyde, 5-Ethylidene-4-Hydroxy-, (5Z)- (9Ci)
CAS No.	657390-28-8
Molecular Formula	C9H12O2
Molecular Weight	152.19 g/mol
Synonyms	(5Z)-5-Ethylidene-4-hydroxy-2-cyclopentene-1-acetaldehyde; 5-Ethylidene-4-hydroxy-2-cyclopentene-1-acetaldehyde, (5Z)-; 2-Cyclopentene-1-acetaldehyde, 5-ethylidene-4-hydroxy-, (Z)-; (Z)-5-Ethylidene-4-hydroxycyclopent-2-ene-1-acetaldehyde
EINECS	Contact for details

Quality Control

Our 2-Cyclopentene-1-Acetaldehyde, 5-Ethylidene-4-Hydroxy-, (5Z)- (9Ci) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. This material is moisture-sensitive and should be handled under an inert atmosphere to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Specific Rotation	Contact for details

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