Description

9-Octadecene is a high-purity, long-chain terminal alkene with the CAS number 5557-31-3, valued for its versatility as a chemical intermediate and monomer. Its linear C18 structure with a reactive terminal double bond makes it a crucial building block for synthesizing surfactants, lubricant additives, and specialty polymers. This product is essential for R&D laboratories and industrial manufacturers in the petrochemical, specialty chemical, and material science sectors seeking a reliable olefin feedstock.

Application

• Chemical Intermediate: Serves as a key starting material for the synthesis of olefin derivatives, including alcohols, epoxides, and amines via hydroformylation, epoxidation, and other addition reactions.
• Surfactant & Detergent Manufacturing: Used in the production of linear alkylbenzene (LAB) precursors and other biodegradable surfactants for industrial and household cleaning formulations.
• Lubricant & Fuel Additives: Acts as a co-monomer or intermediate in creating viscosity index improvers, pour-point depressants, and other performance-enhancing additives for lubricants and fuels.
• Polymer & Co-polymer Production: Employed as a monomer in polymerization and co-polymerization reactions to produce polyalphaolefins (PAOs), waxes, and other specialty polymers with tailored properties.
• Organic Synthesis & Research: A valuable reagent in academic and industrial R&D for studying olefin metathesis, catalytic reactions, and developing novel organic compounds.
• Plasticizer & Stabilizer Synthesis: Utilized in the manufacture of plasticizers and stabilizers for PVC and other polymers, contributing to material flexibility and longevity.

Basic Information

Product Name	9-Octadecene
CAS No.	5557-31-3
Molecular Formula	C18H36
Molecular Weight	252.48 g/mol
Synonyms	1-Octadecene; α-Octadecene; (9E)-Octadec-9-ene; (E)-9-Octadecene; Olefin C18; Octadec-1-ene; 1-Octadecylene; trans-9-Octadecene
EINECS	226-918-4

Quality Control

Our 9-Octadecene is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including GC, IR, and titration methods, to verify identity, assay, and impurity profiles. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flame. Due to its properties of being easily oxidized (store under inert atmosphere) and highly volatile, it is recommended to store under an inert gas (e.g., nitrogen) and at temperatures between 15-25°C. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to standard
Assay (GC)	≥ 95.0%
Isomer Purity (9-Octadecene)	≥ 90.0%
Water Content (Karl Fischer)	≤ 0.1%
Peroxide Value	≤ 5.0 meq/kg

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