Description

Methyltri(3-Phenylpropoxy)Silane CAS NO 83918-68-7 is a specialized organosilicon compound featuring a unique structure with a central silicon atom bonded to three 3-phenylpropoxy groups and one methyl group. This molecular architecture makes it a valuable reactive intermediate and coupling agent, particularly in the synthesis of advanced silicone polymers and surface modification applications. It is primarily sought after by manufacturers in the specialty chemicals, advanced materials, and electronics industries for developing products with enhanced thermal stability, adhesion, and compatibility.

Application

• As a key monomer or crosslinking agent in the synthesis of high-performance phenyl-containing silicone resins and elastomers.
• As a surface treatment agent to improve the adhesion and compatibility of inorganic fillers (like silica) within organic polymer matrices.
• As a coupling agent in composite materials, enhancing the interfacial bonding between glass fibers or minerals and resin systems.
• In the formulation of release coatings and pressure-sensitive adhesives where specific surface properties are required.
• As a precursor for creating custom silane derivatives with tailored properties for niche applications in electronics and optics.
• In research and development for novel material science applications, including hydrophobic coatings and hybrid organic-inorganic materials.

Basic Information

Product Name	Methyltri(3-Phenylpropoxy)Silane
CAS No.	83918-68-7
Molecular Formula	C31H42O3Si
Molecular Weight	490.75 g/mol
Synonyms	Methyltris(3-phenylpropoxy)silane; Tris(3-phenylpropoxy)methylsilane; Silane, methyltris(3-phenylpropoxy)-; (3-Phenylpropoxy)methylsilane; Methyltri(3-phenyl-1-propoxy)silane; Methyltris(3-phenylpropyloxy)silane; 3-Phenylpropoxymethylsilane; Methyltri(3-phenylpropyloxy)silane
EINECS	Contact for details

Quality Control

Our production of Methyltri(3-Phenylpropoxy)Silane adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay (by GC or HPLC), identity confirmation (IR, NMR), and impurity profiling, to ensure consistency and high purity. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality parameters.

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). This product 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
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.520 - 1.530
Density (g/mL, 20°C)	1.02 - 1.06
Water Content (KF)	≤ 0.5%

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