Description

4-Phenylbutyltrimethoxysilane is a specialized organosilicon coupling agent featuring a phenylbutyl organic group and three hydrolyzable methoxy groups. This bifunctional structure is critical for creating durable chemical bridges between inorganic substrates and organic polymers, enhancing adhesion and composite performance. It is essential for manufacturers in the coatings, adhesives, and advanced materials sectors seeking to improve the mechanical properties and longevity of their products.

Application

• As a key coupling agent in fiberglass-reinforced plastics and mineral-filled composites to improve interfacial adhesion and mechanical strength.
• Surface modification of silica, glass fibers, and other inorganic fillers to enhance their compatibility and dispersion within polymer matrices like epoxies, polyurethanes, and polyamides.
• Formulation of high-performance adhesives and sealants where improved bonding to glass, metal, or mineral surfaces is required.
• Development of water-repellent and corrosion-resistant coatings for construction materials and metal protection.
• As a surface priming agent or additive in silicone-based materials to promote adhesion to difficult substrates.
• Used in the synthesis of hybrid organic-inorganic materials (ORMOSILs) for specialized optical, electronic, or biomedical applications.
• Potential use as an intermediate in the pharmaceutical and agrochemical industries for introducing silane functionality into active molecules.

Basic Information

Product Name	4-Phenylbutyltrimethoxysilane
CAS No.	152958-91-3
Molecular Formula	C₁₃H₂₂O₃Si
Molecular Weight	254.40 g/mol
Synonyms	Trimethoxy(4-phenylbutyl)silane; (4-Phenylbutyl)trimethoxysilane; 4-Phenylbutyltrimethoxy silane; Silane, trimethoxy(4-phenylbutyl)-; Phenylbutyltrimethoxysilane; (4-Phenylbutyl)trimethoxy silane; 152958-91-3; 4-Phenylbutyl-trimethoxysilane
EINECS	Contact for details

Quality Control

Our 4-Phenylbutyltrimethoxysilane is manufactured under strict quality management systems. 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 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, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed after opening 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)	1.480 - 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.