Description

Cyclooctanecarboxaldehyde, 1-Methyl- (9Ci) is a specialized aliphatic aldehyde derivative of cyclooctane, identified by CAS number 217464-11-4. This compound serves as a valuable and versatile chiral building block and intermediate in advanced organic synthesis, enabling the construction of complex molecular architectures. It is primarily sought after by research chemists and process development scientists in the pharmaceutical, agrochemical, and fragrance industries for applications requiring specific stereochemistry and ring structure.

Application

• Pharmaceutical Intermediate: Key chiral precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for candidates with macrocyclic or constrained structures.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, where the cyclooctane scaffold can contribute to unique biological activity.
• Advanced Material Chemistry: Serves as a monomer or functionalization agent in the development of specialty polymers and macrocyclic ligands for catalysis.
• Flavor & Fragrance Industry: Employed as an intermediate for creating complex, musky, or amber-like scent molecules due to its aldehyde functionality and ring size.
• Academic & Industrial R&D: Essential reagent for methodological studies in organic chemistry, including asymmetric synthesis, ring-expansion reactions, and cross-coupling methodologies.
• Catalyst & Ligand Development: Building block for synthesizing novel phosphine or nitrogen-based ligands used in homogeneous catalysis.

Basic Information

Product Name	Cyclooctanecarboxaldehyde, 1-Methyl- (9Ci)
CAS No.	217464-11-4
Molecular Formula	C10H18O
Molecular Weight	154.25 g/mol
Synonyms	1-Methylcyclooctanecarboxaldehyde; 1-Methylcyclooctanecarbaldehyde; (1-Methylcyclooctyl)methanal; 1-Methylcyclooctylcarboxaldehyde; Cyclooctanecarboxaldehyde, 1-methyl-; 217464-11-4; 1-Methyl-cyclooctanecarbaldehyde
EINECS	Contact for details

Quality Control

Our Cyclooctanecarboxaldehyde, 1-Methyl- (9Ci) is produced and handled 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. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support cGMP and ISO standards for research and development materials.

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 2-8°C for long-term stability. Keep away from heat, sparks, and open flame. This material is easily oxidized and light-sensitive.

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.