Description

p-Tolylmethyldimethoxysilane is a specialized organosilicon compound, specifically a functional silane coupling agent. This chemical is valued for its ability to modify interfaces between inorganic materials and organic polymers, enhancing adhesion and composite performance. It is primarily sought by manufacturers in the silicone rubber, resin modification, and surface treatment industries for its role as a crosslinker and adhesion promoter.

Application

• As a crosslinking agent and adhesion promoter in silicone rubber and sealant formulations.
• As a surface modifier for inorganic fillers (e.g., silica, glass fibers) to improve compatibility with polymer matrices.
• As a key intermediate in the synthesis of more complex silane-based specialty chemicals.
• In the production of moisture-curable resins and coatings, where it acts as a coupling agent.
• For enhancing the water repellency and durability of treated mineral surfaces.
• In electronic encapsulants and potting compounds to improve mechanical properties and environmental resistance.

Basic Information

Product Name	p-Tolylmethyldimethoxysilane
CAS No.	17873-30-2
Molecular Formula	C10H16O2Si
Molecular Weight	196.32 g/mol
Synonyms	4-Methylphenylmethyldimethoxysilane; (p-Tolyl)methyldimethoxysilane; Methyl(4-methylphenyl)dimethoxysilane; Dimethoxy(p-tolyl)methylsilane; Methyl-p-tolyldimethoxysilane; Silane, dimethoxy(p-tolyl)methyl-; (4-Methylphenyl)methyldimethoxysilane
EINECS	241-826-3

Quality Control

Our p-Tolylmethyldimethoxysilane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including GC and NMR, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Refractive Index (n20/D)	1.480 - 1.490
Density (20°C)	0.98 - 1.02 g/cm³

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