Description

Allyltrimethoxysilane is a versatile organosilicon compound featuring both a reactive allyl group and hydrolyzable methoxy groups. This dual functionality makes it a crucial coupling agent and monomer for modifying material interfaces and polymer properties. It is essential for industries requiring enhanced adhesion, crosslinking, and surface modification. Key applications include the production of silicone resins, adhesion promoters for coatings and sealants, and as a surface treatment agent for fillers and reinforcements.

Application

• As a coupling agent in mineral-filled composites (e.g., glass, clay) to improve mechanical properties and moisture resistance.
• As an adhesion promoter in primers, paints, and sealants for metals, glass, and plastics.
• As a key monomer or crosslinker in the synthesis of specialty silicone polymers and resins.
• For the surface treatment of nanoparticles and inorganic fillers to enhance dispersion in organic matrices.
• In the manufacture of moisture-curable silane-modified polymers (SMP) and hybrid materials.
• As a chemical intermediate for further synthesis of functional silanes.
• In electronic encapsulants and potting compounds to improve performance under humid conditions.

Basic Information

Product Name	Allyltrimethoxysilane
CAS No.	2551-83-9
Molecular Formula	C6H14O3Si
Molecular Weight	162.26 g/mol
Synonyms	Trimethoxy(2-propenyl)silane; 3-(Trimethoxysilyl)-1-propene; Allyltrimethoxysilane; Allyltri(methoxy)silane; Silane, trimethoxy-2-propenyl-; A3631 (common abbreviation); ATMS
EINECS	219-861-5

Quality Control

Our Allyltrimethoxysilane is manufactured under stringent quality management systems. Every batch undergoes comprehensive analytical testing to ensure high purity and consistency, meeting the specifications required for industrial and specialty chemical applications. A Certificate of Analysis (COA) detailing key parameters such as assay, identity, and impurity profile is provided with each shipment to guarantee reliable performance in your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic and highly volatile nature, the container must be kept tightly sealed under dry conditions (e.g., under an inert atmosphere or with appropriate desiccants) to prevent moisture absorption and evaporation. Recommended storage temperature is 2-25°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.390 - 1.400
Density (20°C)	0.950 - 0.980 g/mL
Water Content (KF)	≤ 0.5%

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