Description

Allyldimethoxysilane is a versatile organosilicon compound, specifically a functional silane coupling agent. Its molecular structure, featuring both hydrolyzable methoxy groups and a reactive allyl group, makes it a critical intermediate for introducing cross-linkable sites and enhancing adhesion in polymer systems. This product is essential for manufacturers in the silicone, polymer, and coatings industries seeking to improve material properties and performance.

Application

• As a key coupling agent and cross-linking monomer in the synthesis of specialty silicone polymers and resins.
• Used as a surface modifier and adhesion promoter for inorganic fillers (e.g., silica, glass) in composite materials and rubber formulations.
• An important intermediate for the production of other functional silanes and silicone-based materials.
• Employed in the manufacture of moisture-curable sealants, adhesives, and coatings to enhance durability and bonding strength.
• Used in the synthesis of silane-modified polymers (SMP) for advanced construction and automotive applications.
• As a chemical anchor or primer component to improve the adhesion of organic polymers to mineral surfaces like concrete or metals.

Basic Information

Item	Detail
Product Name	Allyldimethoxysilane
CAS No.	18147-35-8
Molecular Formula	C5H12O2Si
Molecular Weight	132.23 g/mol
Synonyms	Allyl(dimethoxy)silane; Dimethoxy(2-propenyl)silane; 3-(Dimethoxysilyl)-1-propene; Allyltrimethoxysilane (common misnomer, note difference); (Allyl)dimethoxysilane; Silane, allyldimethoxy-; 2-Propen-1-yldimethoxysilane
EINECS	Contact for details

Quality Control

Our Allyldimethoxysilane is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) detailing the results for all critical parameters 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). Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed after opening to minimize moisture uptake and evaporation. Store away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Purity (GC)	≥ 97.0%
Refractive Index (n20D)	1.405 - 1.415
Density (20°C)	0.88 - 0.92 g/cm³
Water Content (Karl Fischer)	≤ 0.5%

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