Description

9,12-Octadecadienoic Acid, 18-(Trimethylsiloxy)-, Methyl Ester is a specialized organosilicon derivative of linoleic acid, designed to impart unique surface-active and reactive properties. This compound matters for its ability to act as a versatile intermediate and functional additive, bridging organic and silicone chemistries. It is needed by formulators and researchers in the personal care, coatings, and advanced materials industries seeking to modify surface characteristics, enhance compatibility, or create novel hybrid polymers.

Application

• Personal Care & Cosmetic Formulations: Used as a conditioning agent, emollient, or reactive modifier in hair care products, skin creams, and sunscreens to improve texture and water repellency.
• Silicone Resin & Polymer Modification: Serves as a key intermediate for synthesizing silicone-modified polyols, acrylates, or other polymers, enhancing flexibility, adhesion, and weather resistance.
• Lubricant & Release Agent Additive: Functions as a high-performance additive in specialty lubricants, mold release agents, and anti-foaming formulations.
• Surface Treatment & Coatings: Employed to modify surface energy and promote adhesion in coatings, inks, and primers for plastics, metals, and composites.
• Research & Chemical Synthesis: Acts as a valuable building block in organic and organometallic synthesis for developing new materials with tailored properties.

Basic Information

Product Name	9,12-Octadecadienoic Acid, 18-(Trimethylsiloxy)-, Methyl Ester
CAS No.	22074-68-6
Molecular Formula	C22H42O4Si
Molecular Weight	398.66 g/mol
Synonyms	Methyl 18-(trimethylsiloxy)octadeca-9,12-dienoate; Linoleic Acid, 18-(Trimethylsiloxy)-, Methyl Ester; Methyl (9Z,12Z)-18-(trimethylsilyloxy)octadeca-9,12-dienoate; Silated Methyl Linoleate; Trimethylsilyl Ether of Methyl Linoleate; Organosilicon Linoleate Ester
EINECS	Contact for details

Quality Control

Our 9,12-Octadecadienoic Acid, 18-(Trimethylsiloxy)-, Methyl Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and identity confirmation, to ensure consistent quality and performance. Certificates of Analysis (COA) detailing specific batch results are available upon request.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability.

Specification

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