Description

Isooctyltrimethoxysilane is a versatile organosilicon coupling agent and chemical intermediate. Its primary value lies in its ability to modify surfaces and enhance the compatibility between inorganic materials and organic polymers. This product is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced composite materials. It is also known by its CAS number 34396-03-7.

Application

• As a coupling agent in mineral-filled composites (e.g., talc, silica, clay) to improve mechanical properties and dispersion.
• As a surface modifier for pigments and fillers to enhance hydrophobicity and compatibility with polymer matrices.
• As a crosslinking agent and moisture scavenger in silicone sealants and adhesives.
• As a primer or adhesion promoter for coatings on glass, metal, and mineral surfaces.
• In the synthesis of specialty silane-modified polymers (SMP) and resins.
• For the hydrophobic treatment of construction materials like concrete and stone.

Basic Information

Product Name	Isooctyltrimethoxysilane
CAS No.	34396-03-7
Molecular Formula	C11H26O3Si
Molecular Weight	234.41 g/mol
Synonyms	Trimethoxy(6-methylheptyl)silane; Trimethoxyisooctylsilane; 3-(Trimethoxysilyl)-6-methylheptane; Isooctyl trimethoxysilane; Isooctyltrimethoxysilane; (6-Methylheptyl)trimethoxysilane; Dynasylan IMO; Silane A-162
EINECS	251-984-6

Quality Control

Our Isooctyltrimethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity and performance. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with every shipment to guarantee compliance with your specifications.

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 and highly volatile nature, containers must be kept tightly sealed when not in use to prevent moisture absorption and evaporation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (20°C)	0.88 - 0.90 g/cm³
Refractive Index (n20D)	1.408 - 1.412
Water Content (Karl Fischer)	≤ 0.5%

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