Description

Oleic Acid Trimethylsilyl Ester CAS NO 21556-26-3 is a high-purity, organosilicon derivative of oleic acid, where the carboxylic acid group is protected as a trimethylsilyl (TMS) ester. This chemical modification is crucial for applications requiring enhanced volatility, stability, and solubility in non-polar media, making it a valuable intermediate and analytical standard. It is primarily utilized by researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors for synthesis, derivatization for gas chromatography (GC), and as a building block for specialty surfactants and lubricants.

Application

• Gas Chromatography (GC) Derivatization Agent: Used to increase the volatility and thermal stability of fatty acids and related compounds for precise analytical separation and quantification.
• Pharmaceutical Intermediate: Serves as a protected intermediate in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Employed as a key reagent in the production of specialized pesticides, herbicides, and plant growth regulators.
• Specialty Lubricant & Surfactant Precursor: Acts as a building block for creating high-performance silicone-based lubricants and non-ionic surfactants.
• Surface Modification Agent: Used to impart hydrophobic properties to materials like silica, glass, and metals.
• Polymer & Material Science: Incorporated into polymer chains to modify flexibility, reduce surface energy, or create release coatings.
• Research & Development: A critical reagent in organic synthesis laboratories for protecting carboxylic acid groups during multi-step reactions.

Basic Information

Product Name	Oleic Acid Trimethylsilyl Ester
CAS No.	21556-26-3
Molecular Formula	C21H42O2Si
Molecular Weight	354.65 g/mol
Synonyms	Oleic Acid TMS Ester; (Z)-9-Octadecenoic Acid Trimethylsilyl Ester; Trimethylsilyl Oleate; TMS-Oleate; cis-9-Octadecenoic Acid Trimethylsilyl Ester; Oleic Acid, Trimethylsilyl Ester; EINECS 244-433-8
EINECS	244-433-8

Quality Control

Our Oleic Acid Trimethylsilyl Ester is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high chemical purity and identity confirmation. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality systems are designed to support research and industrial applications where consistency and reliability are paramount.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation by atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 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.