Description

1-Methyl-1-Cyclooctene is a specialized cyclic olefin monomer with a unique sterically hindered structure. This compound serves as a valuable building block in advanced organic synthesis and polymer chemistry, enabling the creation of novel materials with tailored properties. It is primarily utilized by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for applications requiring specific molecular architectures.

Application

• Pharmaceutical Intermediate: Used in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs) where its cyclic structure introduces specific stereochemistry.
• Agrochemical Synthesis: Acts as a key precursor in the development of novel pesticides and herbicides, leveraging its reactivity to form functionalized ring systems.
• Specialty Polymer Monomer: Employed in the production of advanced polymers, including cyclic olefin copolymers (COCs) and other materials with high thermal stability and optical clarity.
• Organic Synthesis Building Block: Utilized in Diels-Alder reactions, hydrofunctionalization, and other catalytic transformations to construct complex organic frameworks in academic and industrial research.
• Fragrance and Flavor Chemistry: Serves as a starting material for the synthesis of specific musk-like or woody odorants due to its eight-membered ring structure.
• Material Science Research: Investigated for creating novel cross-linked networks or as a modifier for resins to alter physical properties like glass transition temperature and solubility.

Basic Information

Product Name	1-Methyl-1-Cyclooctene
CAS No.	933-11-9
Molecular Formula	C9H16
Molecular Weight	124.22 g/mol
Synonyms	1-Methylcyclooct-1-ene; Methylcyclooctene; Cyclooctene, 1-methyl-; 1-Methyl-1-cyclooctene; 1-Methylcyclooctene; NSC 163045
EINECS	Contact for details

Quality Control

Our 1-Methyl-1-Cyclooctene is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available for every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile nature, store in a cool, well-ventilated place at 15-25°C. Keep away from strong acids and organic solvents. For long-term storage, consider maintaining under an inert atmosphere such as nitrogen to minimize potential oxidation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC)	Total impurities ≤ 3.0%
Density (at 20°C)	~0.81 g/mL
Refractive Index (n20/D)	~1.460

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