Description

Octadecyl Sulfoxide is a high-purity, long-chain organosulfur compound with a polar sulfoxide functional group. This unique structure makes it a valuable intermediate and functional additive, offering surface-active properties and the ability to act as a ligand or modifier. It is essential for researchers and manufacturers in the specialty chemical and pharmaceutical sectors who require reliable, high-quality raw materials for advanced synthesis and formulation. The compound is supplied under the identifier CAS NO 99159-40-7.

Application

• As a key intermediate in the synthesis of specialty surfactants and emulsifiers.
• Utilized as a phase-transfer catalyst or ligand in organic synthesis and metal complexation.
• Acts as a surface modifier or compatibilizer in polymer and composite materials.
• Employed in lubricant formulations as a friction modifier or extreme pressure additive.
• Used in research and development for studying sulfoxide chemistry and reaction mechanisms.
• Potential application as a precursor for the production of more complex sulfoxide or sulfone derivatives.

Basic Information

Product Name	Octadecyl Sulfoxide
CAS No.	99159-40-7
Molecular Formula	C₁₈H₃₈OS
Molecular Weight	302.56 g/mol
Synonyms	Stearyl Sulfoxide; 1-Octadecanesulfinyloctadecane; n-Octadecyl Sulfoxide; Sulfinylbis(octadecane); Octadecyl Sulphoxide; Stearic Sulfoxide; C18 Sulfoxide; Octadecanesulfoxide
EINECS	Contact for details

Quality Control

Our Octadecyl Sulfoxide is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling, to ensure it meets the highest standards for research and industrial use. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing traceability and consistent quality.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%

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