Description

Cyclohexane, 1-Ethyl-4-Ethynyl-, trans- (9Ci) is a specialized alicyclic building block featuring both ethyl and ethynyl substituents in a trans configuration on the cyclohexane ring. This unique molecular architecture makes it a valuable intermediate for advanced organic synthesis, particularly in the development of complex pharmaceuticals and functional materials. It is primarily sought by research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for constructing novel molecular scaffolds.

Application

• Pharmaceutical Intermediate: A key synthon for the synthesis of novel drug candidates, especially those requiring rigid, alicyclic frameworks with defined stereochemistry.
• Agrochemical Research: Used in the development of new active ingredients for crop protection, where the ethynyl group can serve as a handle for further functionalization.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands in asymmetric catalysis and organometallic chemistry.
• Advanced Material Synthesis: A building block for polymers and dendrimers with tailored thermal and mechanical properties.
• Academic & Industrial R&D: Fundamental research in organic chemistry, exploring new cycloaddition and coupling reactions.
• Fine Chemical Production: Intermediate in the multi-step synthesis of complex fragrance and flavor molecules.

Basic Information

Product Name	Cyclohexane, 1-Ethyl-4-Ethynyl-, trans- (9Ci)
CAS No.	141743-53-5
Molecular Formula	C10H16
Molecular Weight	136.24 g/mol
Synonyms	trans-1-Ethyl-4-ethynylcyclohexane; 1-Ethyl-4-ethynylcyclohexane, trans-; 4-Ethynyl-1-ethylcyclohexane; (trans)-1-Ethyl-4-ethynylcyclohexane; Cyclohexane, 1-ethyl-4-ethynyl-, (1,4)-; 141743-53-5; 1-Ethyl-4-ethynyl-cyclohexane
EINECS	Contact for details

Quality Control

Our Cyclohexane, 1-Ethyl-4-Ethynyl-, trans- (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography (GC/HPLC) and spectroscopic methods (NMR, IR), to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support cGMP-compliant production for pharmaceutical applications upon request.

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. For long-term storage under an inert atmosphere (e.g., nitrogen or argon), please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
trans-Isomer Content (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.