Description

Cyclohexanecarboxaldehyde, 4-Ethyl-, trans- (9Ci) is a specialized chiral aldehyde derivative of cyclohexane, serving as a high-value intermediate in fine chemical synthesis. Its defined stereochemistry and reactive aldehyde group make it a critical building block for constructing complex molecular architectures. This compound is essential for research and production in the pharmaceutical and advanced materials sectors, where precise chemical structure is paramount for functionality.

Application

• Pharmaceutical Intermediate: Key chiral synthon for the synthesis of active pharmaceutical ingredients (APIs), particularly in developing central nervous system (CNS) agents and other therapeutic compounds.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where the trans-4-ethylcyclohexyl moiety can influence biological activity and selectivity.
• Liquid Crystal & OLED Materials: Serves as a precursor for mesogens and electron-transport materials in display technologies and organic electronics.
• Fragrance & Flavor Chemistry: Acts as a starting material for creating novel synthetic aroma chemicals with unique olfactory properties.
• Asymmetric Catalysis Ligand Precursor: Utilized in the development of chiral ligands and organocatalysts for enantioselective synthesis.
• Polymer Modification: Employed to introduce cycloaliphatic groups into polymer chains, enhancing properties like thermal stability and solubility.

Basic Information

Item	Details
Product Name	Cyclohexanecarboxaldehyde, 4-Ethyl-, trans- (9Ci)
CAS No.	167545-47-3
Molecular Formula	C9H16O
Molecular Weight	140.22 g/mol
Synonyms	trans-4-Ethylcyclohexanecarboxaldehyde; (trans)-4-Ethylcyclohexanecarbaldehyde; 4-Ethylcyclohexanecarboxaldehyde, trans-; 4-Ethylcyclohexanecarbaldehyde (trans); p-Ethylcyclohexanecarboxaldehyde, trans-; Cyclohexanecarboxaldehyde, 4-ethyl-, (trans)-; 4-Ethyl-cyclohexanecarboxaldehyde (trans)
EINECS	Contact for details

Quality Control

Our Cyclohexanecarboxaldehyde, 4-Ethyl-, trans- (9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis by GC or HPLC, to ensure high chemical and isomeric purity suitable for demanding synthetic applications. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming identity, purity, and specific impurity profiles.

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 long-term storage temperature is 2-8°C. Due to its easily oxidized nature, minimize headspace in opened containers and use promptly.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Chiral Purity (trans-isomer)	≥ 98.0%
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.