Description

Cycloheptanone, 3-Ethynyl- (9Ci) is a specialized organic building block featuring a seven-membered ketone ring with an ethynyl substituent, offering unique reactivity and structural properties. This compound is valued for its role as a key intermediate in advanced organic synthesis, particularly in the construction of complex molecular architectures. It is primarily sought by research and development teams in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly those requiring complex cyclic or alkyne-containing scaffolds.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, leveraging its unique ring structure for bioactivity.
• Material Science Research: Serves as a precursor for novel polymers, ligands, or metal-organic frameworks (MOFs) due to its functional ketone and alkyne groups.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for cycloaddition reactions, Sonogashira couplings, and other catalytic transformations.
• Fine Chemical Production: Utilized in the custom synthesis of specialty chemicals, flavors, and fragrances requiring specific cyclic ketone motifs.

Basic Information

Product Name	Cycloheptanone, 3-Ethynyl- (9Ci)
CAS No.	155222-53-0
Molecular Formula	C9H10O
Molecular Weight	134.18 g/mol
Synonyms	3-Ethynylcycloheptanone; 3-Ethynylcycloheptan-1-one; 1-Cycloheptanone, 3-ethynyl-; Cycloheptanone, 3-ethynyl-; 155222-53-0; 3-Ethynyl-1-cycloheptanone
EINECS	Contact for details

Quality Control

Our Cycloheptanone, 3-Ethynyl- (9Ci) is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including GC, HPLC, and NMR to confirm identity and purity. 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, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in amber glass or opaque packaging during storage.

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.