Description

Cyclopentanone, 2-Ethynyl-2-Hydroxy-5-Methyl- (9Ci) CAS NO 344353-49-7 is a specialized, high-purity organic compound featuring a unique cyclopentanone core functionalized with ethynyl and hydroxyl groups. This molecular structure makes it a valuable and versatile advanced intermediate for synthesizing complex molecules in research and development. It is primarily sought after by pharmaceutical and agrochemical industries for constructing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of novel drug candidates, particularly in medicinal chemistry research.
• Agrochemical Synthesis: Used in the development of new pesticides, herbicides, and plant growth regulators.
• Material Science Research: Serves as a precursor for specialty polymers, ligands, or organic electronic materials.
• Organic Synthesis & Catalysis: Employed in academic and industrial R&D for constructing complex molecular architectures and exploring new catalytic reactions.
• Fine Chemical Production: Acts as a critical intermediate in the multi-step synthesis of high-value, low-volume specialty chemicals.

Basic Information

Product Name	Cyclopentanone, 2-Ethynyl-2-Hydroxy-5-Methyl- (9Ci)
CAS No.	344353-49-7
Molecular Formula	C8H10O2
Molecular Weight	138.16 g/mol
Synonyms	2-Ethynyl-2-hydroxy-5-methylcyclopentanone; 5-Methyl-2-ethynyl-2-hydroxycyclopentanone; 2-Hydroxy-2-ethynyl-5-methylcyclopentanone; 2-Ethynyl-5-methylcyclopentan-2-ol-1-one
EINECS	Contact for details

Quality Control

Our Cyclopentanone, 2-Ethynyl-2-Hydroxy-5-Methyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for advanced synthetic applications. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); ensure containers are sealed tightly after use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.