Description

Oxiranepropanol, 3-Ethynyl-, cis- (9Ci) CAS NO 156455-58-2 is a specialized, high-value oxirane derivative featuring both an epoxide ring and an ethynyl group, making it a versatile and reactive building block for advanced organic synthesis. This unique bifunctional structure is critical for creating complex molecular architectures, particularly in the development of novel polymers, pharmaceuticals, and advanced materials. It is primarily sought after by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for applications requiring precise molecular control and functional group diversity.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing reactive sites for further conjugation or cyclization.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators where its epoxide and alkyne functionalities enable unique modes of action.
• Polymer & Resin Modification: Acts as a cross-linking agent or monomer for producing specialty epoxy resins, adhesives, and coatings with enhanced thermal or mechanical properties.
• Material Science Research: Employed in the creation of advanced organic frameworks, dendrimers, and functional surfaces for sensors or electronic applications.
• Click Chemistry: The ethynyl group makes it an ideal substrate for copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions, a cornerstone of bioconjugation and material labeling.
• Liquid Crystal & OLED Materials: Used as a building block for synthesizing organic semiconductors and liquid crystal compounds due to its rigid, linear geometry and reactivity.

Basic Information

Product Name	Oxiranepropanol, 3-Ethynyl-, cis- (9Ci)
CAS No.	156455-58-2
Molecular Formula	C5H6O2
Molecular Weight	98.10 g/mol
Synonyms	cis-3-Ethynyloxiranemethanol; 2-[(2R,3S)-3-Ethynyloxiran-2-yl]ethanol; 3-Ethynyl-2-oxiranemethanol, cis-; Glycidol propargyl ether (cis-); Oxiranemethanol, 3-ethynyl-, (2R,3S)-rel-; Propargyl glycidyl ether (cis isomer); (2R,3S)-3-Ethynyloxirane-2-methanol
EINECS	Contact for details

Quality Control

Every batch of Oxiranepropanol, 3-Ethynyl-, cis- (9Ci) is produced and tested under strict quality management protocols to ensure consistency and purity for critical research and production applications. Our rigorous quality testing includes advanced chromatographic and spectroscopic methods to verify identity, potency, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and specific test results is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, and incompatible materials such as strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Area %)
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.