Description

12-(Trimethylsilyloxy)Octadecanoic Acid Methyl Ester is a specialized organosilicon-modified fatty acid ester, serving as a versatile intermediate and functional additive. Its unique structure, featuring a silyl-protected hydroxyl group, provides valuable properties for modifying surface characteristics and enhancing compatibility in advanced formulations. This compound is essential for R&D chemists and production engineers in the pharmaceutical, personal care, and specialty polymer industries seeking to innovate with silicon-organic hybrid materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of prodrugs or active pharmaceutical ingredients (APIs) where controlled hydrophobicity and release profiles are required.
• Personal Care & Cosmetic Additive: Acts as an emollient, skin-feel modifier, or carrier in high-end skincare and sunscreen formulations due to its silky texture and potential film-forming properties.
• Lubricant & Release Agent: Functions as a high-performance additive in synthetic lubricants, mold release agents, and anti-stick coatings for industrial processes.
• Surface Modification Agent: Employed to treat pigments, fillers, or nanoparticles to improve dispersion and compatibility in polymer matrices like silicones, epoxies, and coatings.
• Chemical Synthesis Building Block: Serves as a protected intermediate in organic synthesis, particularly for introducing long-chain fatty acid derivatives with a silyl-protected functional handle.
• Adhesive & Sealant Formulation: Used as a plasticizer or compatibility enhancer in specialty silicone-based adhesives and sealants to adjust rheology and adhesion properties.

Basic Information

Product Name	12-(Trimethylsilyloxy)Octadecanoic Acid Methyl Ester
CAS No.	15075-70-4
Molecular Formula	C22H46O3Si
Molecular Weight	386.69 g/mol
Synonyms	Methyl 12-(Trimethylsilyloxy)octadecanoate; Methyl 12-(Trimethylsiloxy)stearate; 12-Hydroxystearic Acid Methyl Ester Trimethylsilyl Ether; 12-TMS-O-stearic Acid Methyl Ester; Octadecanoic Acid, 12-(Trimethylsilyloxy)-, Methyl Ester; Stearic Acid, 12-Hydroxy-, Methyl Ester, Trimethylsilyl Ether
EINECS	Contact for details

Quality Control

Our production of 12-(Trimethylsilyloxy)Octadecanoic Acid Methyl Ester adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC, GC) and spectroscopy (IR, NMR), to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all critical specifications are provided and can be tailored to meet specific customer or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container should be kept tightly sealed to minimize moisture absorption and contamination.

Specification

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

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