Description

18-(Trimethylsilyloxy)-9-Octadecenoic Acid Methyl Ester is a specialized organosilicon derivative of oleic acid, serving as a versatile chemical intermediate. This compound is valued for its unique combination of a long-chain fatty acid ester backbone and a reactive trimethylsilyloxy group, enabling precise functionalization in advanced synthesis. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel active ingredients, surface modifiers, and functional materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of novel drug candidates, particularly where lipophilicity and controlled release properties are required.
• Agrochemical Synthesis: Serves as a key building block for creating advanced surfactants, adjuvants, and active ingredients with enhanced penetration and stability.
• Specialty Polymer & Resin Modifier: Incorporated to impart hydrophobic characteristics, improve lubricity, or modify the surface properties of polymers and coatings.
• Lubricant & Grease Additive Precursor: Acts as a starting material for synthesizing high-performance silicone-containing lubricant additives.
• Surface Treatment Agent: Utilized in the development of water-repellent or release coatings for textiles, paper, and industrial surfaces.
• Research & Development: A valuable tool in organic and medicinal chemistry for exploring new synthetic pathways and material properties.

Basic Information

Product Name	18-(Trimethylsilyloxy)-9-Octadecenoic Acid Methyl Ester
CAS No.	21987-17-7
Molecular Formula	C22H44O3Si
Molecular Weight	384.68 g/mol
Synonyms	Methyl 18-(trimethylsilyloxy)oleate; Methyl (9Z)-18-(trimethylsilyloxy)octadec-9-enoate; Oleic acid, 18-(trimethylsilyloxy)-, methyl ester; 9-Octadecenoic acid, 18-(trimethylsilyloxy)-, methyl ester; TMSO-oleic acid methyl ester; (Z)-Methyl 18-(trimethylsilyloxy)octadec-9-enoate
EINECS	Contact for details

Quality Control

Our production of 18-(Trimethylsilyloxy)-9-Octadecenoic Acid Methyl Ester adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as identity, assay, and impurity profile. We are committed to meeting the specific quality requirements of our global partners in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). The compound is moisture-sensitive; keep the container tightly sealed when not in use to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF)	≤ 0.5%

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