Description

Di(p-Tolyl)Dimethoxysilane is a specialized organosilicon compound, a key intermediate in the synthesis of advanced silicone polymers and silane coupling agents. Its molecular structure, featuring two aromatic tolyl groups and two methoxy substituents, provides unique reactivity and compatibility, making it valuable for modifying material surfaces and enhancing polymer properties. This chemical is essential for manufacturers in the silicone resin, adhesive, and specialty coatings industries seeking to improve thermal stability, adhesion, and hydrophobicity in their formulations.

Application

• Silicone Resin & Polymer Intermediate: A crucial monomer for synthesizing high-performance phenyl-containing silicone resins with enhanced thermal and oxidative stability.
• Surface Modification & Coupling Agent: Used to functionalize inorganic fillers (e.g., silica, glass) to improve their dispersion and bonding within organic polymer matrices like epoxies and polyimides.
• Adhesive & Sealant Formulations: Imparts improved adhesion, flexibility, and moisture resistance in high-temperature silicone and hybrid adhesive systems.
• Specialty Coatings: Serves as a cross-linking agent or additive in protective and release coatings to enhance surface properties and durability.
• Electronic Encapsulants: Used in the production of silicones for potting and encapsulating electronic components, where thermal management is critical.
• Pharmaceutical & Agrochemical Intermediates: Acts as a building block in the synthesis of more complex organosilicon molecules for specialized applications.

Basic Information

Product Name	Di(p-Tolyl)Dimethoxysilane
CAS No.	92779-72-1
Molecular Formula	C16H20O2Si
Molecular Weight	272.42 g/mol
Synonyms	Bis(4-methylphenyl)dimethoxysilane; Di-4-tolyl-dimethoxysilane; Dimethoxybis(4-methylphenyl)silane; p-Tolyl Dimethoxysilane (ambiguous); DPDMS (abbrev.); Silane, dimethoxybis(4-methylphenyl)-; Di(4-methylphenyl)dimethoxysilane
EINECS	Contact for details

Quality Control

Our Di(p-Tolyl)Dimethoxysilane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment. We adhere to relevant industry standards and can support compliance documentation as required.

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 prevent degradation by atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	~1.04 g/cm³
Refractive Index (n20D)	~1.530
Moisture (KF)	≤ 0.5%

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