Description

Dodecylmethoxydimethylsilane is a specialized organosilicon compound, also known as lauryl methoxydimethylsilane, valued for its hydrophobic and surface-modifying properties. It serves as a key coupling agent and hydrophobizing intermediate in advanced material synthesis. This product is essential for manufacturers in the silicone polymers, coatings, and specialty chemical industries seeking to impart water repellency and improve compatibility between organic and inorganic phases.

Application

• As a hydrophobic agent and surface modifier for inorganic fillers like silica, calcium carbonate, and talc in polymer composites.
• As a coupling agent in silicone sealants, adhesives, and RTV (Room Temperature Vulcanizing) rubbers to enhance filler-matrix interaction and moisture resistance.
• In the synthesis of functional silicone oils and fluids with long alkyl chains for release coatings, textile treatments, and personal care products.
• As a key intermediate for manufacturing silane-based quaternary ammonium compounds (Si-QACs) with antimicrobial properties.
• For the waterproofing treatment of construction materials, including concrete, stone, and masonry.
• In the formulation of specialty coatings and paints to improve substrate adhesion, weather resistance, and anti-corrosion properties.
• As a surface treatment agent for nanoparticles to prevent agglomeration and improve dispersion in organic solvents and polymers.

Basic Information

Product Name	Dodecylmethoxydimethylsilane
CAS No.	93804-28-5
Molecular Formula	C15H34O1Si1
Molecular Weight	258.52 g/mol
Synonyms	Lauryl methoxydimethylsilane; Methoxydodecyldimethylsilane; Dimethyl(methoxy)dodecylsilane; Dodecyldimethylmethoxysilane; n-Dodecylmethoxydimethylsilane; 1-Methoxy-1,1-dimethyldodecylsilane; Silane, methoxydodecyldimethyl-; (Methoxydimethylsilyl)dodecane
EINECS	Contact for details

Quality Control

Our Dodecylmethoxydimethylsilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and FTIR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are available upon request to support your quality assurance protocols.

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). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.435 - 1.445
Density (20°C)	0.83 - 0.87 g/mL

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