Description

1,3-Cyclopentanediol, 2-Ethynyl-2-Methyl-, (1Alpha,2Alpha,3Alpha)- (9Ci) is a specialized chiral building block featuring a cyclopentane ring core with hydroxyl and ethynyl functional groups. This unique molecular architecture makes it a valuable intermediate for synthesizing complex, high-value compounds in advanced research and development. It is primarily sought after by pharmaceutical and agrochemical R&D teams for constructing novel active ingredients, as well as by fine chemical manufacturers producing custom catalysts and ligands.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of novel active pharmaceutical ingredients (APIs), particularly in areas requiring complex stereochemistry.
• Agrochemical Synthesis: Used in the creation of advanced crop protection agents and herbicides, leveraging its functional groups for structural diversity.
• Fine Chemical Production: Serves as a precursor for manufacturing specialized catalysts, ligands, and other high-value, low-volume chemical products.
• Material Science Research: Investigated as a monomer or cross-linking agent for developing novel polymers with specific thermal or mechanical properties.
• Academic & Industrial R&D: Employed in organic synthesis laboratories for methodological studies and the construction of complex molecular libraries.

Basic Information

Product Name	1,3-Cyclopentanediol, 2-Ethynyl-2-Methyl-, (1Alpha,2Alpha,3Alpha)- (9Ci)
CAS No.	138768-04-4
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	(1α,2α,3α)-2-Ethynyl-2-methylcyclopentane-1,3-diol; 2-Ethynyl-2-methyl-1,3-cyclopentanediol (stereoisomer); 2-Methyl-2-ethynylcyclopentane-1,3-diol; 138768-04-4; (1R,2R,3R)-2-Ethynyl-2-methylcyclopentane-1,3-diol; Cyclopentanediol, 2-ethynyl-2-methyl-, (1alpha,2alpha,3alpha)-; 2-Ethynyl-2-methyl-1,3-cyclopentanediol
EINECS	Contact for details

Quality Control

Every batch of 1,3-Cyclopentanediol, 2-Ethynyl-2-Methyl-, (1Alpha,2Alpha,3Alpha)- (9Ci) undergoes rigorous analytical testing to ensure identity, purity, and consistency. Our quality management system is designed to meet the stringent requirements of research and fine chemical applications. A comprehensive Certificate of Analysis (COA) detailing purity (typically by HPLC or GC), chiral purity, and other critical parameters is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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