Description

1-Cycloheptene-1-Carboxaldehyde, 2-Ethynyl- (9Ci) is a specialized organic building block featuring a unique cycloheptene core functionalized with both aldehyde and ethynyl groups. This compound matters as a versatile intermediate for advanced organic synthesis, enabling the construction of complex molecular architectures through reactions like Sonogashira coupling and aldehyde-based transformations. It is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for creating novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new drug candidates, particularly for constructing complex carbocyclic and heterocyclic scaffolds.
• Agrochemical Synthesis: Used in the development of novel pesticides and herbicides, where its reactive functional groups allow for the introduction of specific bioactive moieties.
• Material Science Research: Acts as a precursor for monomers or cross-linking agents in the development of specialty polymers and advanced organic materials.
• Academic & Industrial R&D: A valuable reagent for methodological studies in organic chemistry, including catalysis research and the development of new synthetic pathways.
• Ligand and Catalyst Development: The aldehyde and alkyne functionalities make it suitable for constructing novel chelating ligands and organometallic catalysts.
• Fine Chemical Production: Employed in the multi-step synthesis of complex fragrance ingredients, dyes, and other high-value specialty chemicals.

Basic Information

Item	Details
Product Name	1-Cycloheptene-1-Carboxaldehyde, 2-Ethynyl- (9Ci)
CAS No.	106180-27-2
Molecular Formula	C10H10O
Molecular Weight	146.19 g/mol
Synonyms	2-Ethynyl-1-cycloheptene-1-carboxaldehyde; 2-Ethynylcyclohept-1-ene-1-carbaldehyde; 1-Cycloheptene-1-carboxaldehyde, 2-ethynyl-; 2-Ethynyl-1-cycloheptenecarboxaldehyde; 106180-27-2; (2-Ethynylcyclohept-1-en-1-yl)methanal
EINECS	Contact for details

Quality Control

Our 1-Cycloheptene-1-Carboxaldehyde, 2-Ethynyl- (9Ci) is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay and impurity profiles. Our commitment to quality supports your R&D and scale-up processes with reliable, high-purity material.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended storage temperature is between 2°C and 8°C for long-term stability. Allow the container to reach ambient temperature before opening to minimize moisture ingress and degradation. Keep away from heat, sparks, and open flame.

Specification

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