Description

Cyclooctene, 1-Ethynyl- (9Ci) is a specialized organic compound featuring a cyclooctene ring with an ethynyl substituent, offering a unique combination of ring strain and terminal alkyne reactivity. This compound matters as a valuable high-purity building block for advanced organic synthesis and materials science research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty polymer industries for creating novel molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the development of novel active pharmaceutical ingredients (APIs) and complex natural product analogs.
• Agrochemical Research: Used in the synthesis of new crop protection agents and herbicides, leveraging its strained ring system for bioactive molecule design.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the development of specialty polymers with tailored thermal or mechanical properties.
• Organic Synthesis Building Block: Utilized in click chemistry (e.g., copper-catalyzed azide-alkyne cycloaddition) and other catalytic transformations due to its terminal alkyne functionality.
• Ligand & Catalyst Development: Employed in the preparation of novel ligands for transition metal catalysis and organometallic complexes.
• Academic & Industrial R&D: A critical reagent for fundamental research in synthetic methodology and reaction mechanism studies.

Basic Information

Item	Detail
Product Name	Cyclooctene, 1-Ethynyl- (9Ci)
CAS No.	61967-54-2
Molecular Formula	C10H14
Molecular Weight	134.22 g/mol
Synonyms	1-Ethynylcyclooctene; 1-Ethynyl-1-cyclooctene; Ethynylcyclooctene; 1-Cyclooctene-1-ethyne; 1-Cycloocten-1-ylacetylene; (Cyclooct-1-en-1-yl)ethyne; 1-Cyclooctenylacetylene
EINECS	Contact for details

Quality Control

Our Cyclooctene, 1-Ethynyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR analysis, to ensure high chemical purity and identity confirmation. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality systems are designed to meet the stringent requirements of research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. This compound is easily oxidized and light-sensitive; prolonged exposure to air or light should be avoided to maintain stability and purity.

Specification

Item	Specification
Appearance	Clear colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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