Description

1,3,5,7-Cyclooctatetraene, 1-Ethynyl- (9Ci) is a specialized organic building block featuring a cyclooctatetraene core functionalized with an ethynyl group. This compound is valued for its unique conjugated structure and reactivity, making it a key intermediate in advanced synthetic chemistry. It is primarily utilized by researchers and manufacturers in the pharmaceutical, agrochemical, and materials science sectors for developing novel compounds and functional materials.

Application

• As a key synthetic intermediate in pharmaceutical research for the development of novel drug candidates.
• In agrochemical synthesis for creating advanced active ingredients with specific biological activities.
• As a precursor in materials science for the development of organic electronic materials and conductive polymers.
• For academic and industrial research in organic chemistry, particularly in studies involving strained ring systems and alkyne chemistry.
• In the synthesis of specialty ligands and catalysts used in coordination chemistry and catalysis.
• As a building block for advanced polymers with tailored optical or electronic properties.

Basic Information

Product Name	1,3,5,7-Cyclooctatetraene, 1-Ethynyl- (9Ci)
CAS No.	151859-99-3
Molecular Formula	C10H8
Molecular Weight	128.17 g/mol
Synonyms	1-Ethynyl-1,3,5,7-cyclooctatetraene; 1-Ethynylcyclooctatetraene; Ethynylcyclooctatetraene; 1,3,5,7-Cyclooctatetraene, 1-ethynyl-; 1-Ethynylcycloocta-1,3,5,7-tetraene
EINECS	Contact for details

Quality Control

Our 1,3,5,7-Cyclooctatetraene, 1-Ethynyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. Keep away from oxidizing agents and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 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.