Description

1-Ethynyl-1-Cycloheptanol is a specialized organic building block featuring both an alkyne and a tertiary alcohol functional group on the same carbon atom. This unique structure makes it a valuable intermediate for synthesizing complex molecules in advanced research and industrial chemistry. It is primarily sought after by R&D chemists and process development teams in the pharmaceutical, agrochemical, and material science sectors for constructing novel cyclic frameworks and functionalized polymers.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for creating sterically hindered or spirocyclic compounds.
• Agrochemical Synthesis: Used in the production of advanced crop protection agents and herbicides, where its cyclic structure contributes to specific biological activity.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the synthesis of specialty polymers, resins, and advanced materials with tailored properties.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for cycloaddition reactions, nucleophilic additions, and other transformations leveraging its reactive ethynyl group.
• Ligand & Catalyst Development: Utilized as a precursor for creating novel ligands and organometallic complexes used in catalytic processes.
• Fragrance & Flavor Chemistry: Potential intermediate for synthesizing macrocyclic musk compounds and other complex odorants.

Basic Information

Product Name	1-Ethynyl-1-Cycloheptanol
CAS No.	2809-78-1
Molecular Formula	C9H14O
Molecular Weight	138.21 g/mol
Synonyms	1-Ethynylcycloheptan-1-ol; Ethynylcycloheptanol; 1-Cycloheptyl-1-hydroxyacetylene; 1-Hydroxy-1-ethynylcycloheptane; 1-(1-Hydroxycycloheptyl)acetylene; 2809-78-1; NSC 163045
EINECS	220-553-5

Quality Control

Our 1-Ethynyl-1-Cycloheptanol is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (NMR, IR), to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); therefore, containers must be kept tightly sealed and under an inert atmosphere (e.g., nitrogen) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.