Description

M,p-Ethylphenethyltrimethoxysilane is a specialized organosilicon compound, CAS NO 259818-29-6, valued for its unique bifunctional structure that combines a reactive silane group with an aromatic ethylphenethyl moiety. This structure makes it an effective coupling agent and surface modifier, enhancing adhesion and compatibility between organic polymers and inorganic substrates. It is primarily needed by manufacturers in the advanced materials, coatings, and adhesive industries seeking to improve the performance and durability of their composite products.

Application

• As a coupling agent in fiberglass-reinforced plastics and mineral-filled composites to improve mechanical strength and moisture resistance.
• As a surface treatment agent for glass, silica, and metal oxides to promote adhesion in coatings, inks, and adhesives.
• In the formulation of silicone-modified polymers and resins to impart specific rheological or cross-linking properties.
• As an intermediate in the synthesis of more complex silane-based specialty chemicals for electronics or pharmaceuticals.
• For enhancing the water repellency and durability of construction materials like concrete and stone.
• In the production of release coatings and mold-making materials where controlled surface energy is required.

Basic Information

Product Name	M,p-Ethylphenethyltrimethoxysilane
CAS No.	259818-29-6
Molecular Formula	C15H26O3Si
Molecular Weight	282.45 g/mol
Synonyms	3-(4-Ethylphenyl)propyltrimethoxysilane; (3-(4-Ethylphenyl)propyl)trimethoxysilane; m,p-Ethylphenethyltrimethoxysilane; Trimethoxy[3-(4-ethylphenyl)propyl]silane; 259818-29-6; 3-(p-Ethylphenyl)propyltrimethoxysilane; Silane, trimethoxy[3-(4-ethylphenyl)propyl]-
EINECS	Contact for details

Quality Control

Our M,p-Ethylphenethyltrimethoxysilane is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and key specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Purity (GC)	≥ 97.0%
Refractive Index (n20/D)	1.480 - 1.490
Density (20°C)	1.00 - 1.05 g/mL

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