Description

Dimethylmethoxy-n-Octylsilane is a versatile organosilicon compound, specifically a functional alkoxysilane, valued for its hydrophobic and coupling agent properties. Its primary commercial value lies in its ability to modify surfaces and act as an intermediate in the synthesis of more complex silicone-based materials. This product is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for producers of specialty chemicals and surface treatments.

Application

• As a hydrophobic agent and water repellent in construction materials, stone, and concrete sealers.
• As a coupling agent and surface modifier for inorganic fillers (e.g., silica, glass) in polymer composites and rubber formulations.
• As a key intermediate in the synthesis of silicone resins, fluids, and other functional silanes.
• As a primer or adhesion promoter in coatings and adhesive systems for difficult-to-bond substrates.
• For the surface treatment of nanoparticles to improve dispersion in organic matrices.
• In the formulation of release coatings and anti-stick applications.
• As a chemical building block for pharmaceutical and agrochemical active ingredients.

Basic Information

Product Name	Dimethylmethoxy-n-Octylsilane
CAS No.	93804-29-6
Molecular Formula	C11H26O2Si
Molecular Weight	218.41 g/mol
Synonyms	n-Octylmethoxydimethylsilane; Dimethyl-n-octylmethoxysilane; Methoxy(dimethyl)octylsilane; Octylmethoxydimethylsilane; (Methoxydimethylsilyl)octane; 1-(Dimethylmethoxysilyl)octane; CAS 93804-29-6; Silane, methoxydimethyloctyl-
EINECS	Contact for details

Quality Control

Our Dimethylmethoxy-n-Octylsilane is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications. Certificates of Analysis (COA) documenting all critical quality parameters are available upon request to support your quality assurance and regulatory needs.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Purity (GC)	≥ 97.0%
Refractive Index (n20/D)	1.420 - 1.425
Density (20°C)	0.82 - 0.86 g/mL
Water Content (Karl Fischer)	≤ 0.1%

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