Description

18-Methoxyoctadecanoic Acid Methyl Ester is a high-purity synthetic fatty acid ester derivative, valued for its role as a versatile chemical intermediate and building block. Its specific molecular structure, featuring a methoxy group on a long aliphatic chain, makes it a critical component for synthesizing specialized surfactants, lubricant additives, and performance polymers. This compound is essential for R&D and production in the fine chemical, advanced material, and personal care ingredient sectors seeking to modify surface properties and enhance product performance.

Application

• Surfactant & Emulsifier Synthesis: Serves as a key intermediate for producing non-ionic surfactants with tailored hydrophilic-lipophilic balance (HLB) for industrial and cosmetic formulations.
• Lubricant & Fuel Additives: Used in the development of specialty ester-based additives that improve lubricity, reduce friction, and enhance the stability of industrial oils and synthetic lubricants.
• Polymer Modification: Acts as a monomer or plasticizer precursor in the synthesis of specialized polyesters and other polymers to adjust flexibility, hydrophobicity, and processing characteristics.
• Pharmaceutical & Agro-chemical Intermediates: Provides a long-chain fatty acid ester backbone for the research and synthesis of active pharmaceutical ingredients (APIs) and agrochemical agents.
• Personal Care Ingredients: Employed in the manufacture of emollients and conditioning agents for high-end skincare and haircare products.
• Chemical Research (R&D): A valuable reference standard and building block in organic synthesis and material science research for exploring new compound libraries.

Basic Information

Product Name	18-Methoxyoctadecanoic Acid Methyl Ester
CAS No.	55334-47-9
Molecular Formula	C₂₀H₄₀O₃
Molecular Weight	328.53 g/mol
Synonyms	Methyl 18-Methoxyoctadecanoate; Methyl 18-Methoxystearate; Octadecanoic acid, 18-methoxy-, methyl ester; Stearic acid, 18-methoxy-, methyl ester; 18-Methoxystearic acid methyl ester; Methyl 18-methoxyoctadecanoate; C20-Methoxy fatty acid methyl ester
EINECS	Contact for details

Quality Control

Our 18-Methoxyoctadecanoic Acid Methyl Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (IR, NMR), to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications 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, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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