Description

3-Phenylpropylmethyldimethoxysilane is a specialized organosilicon compound, specifically a silane coupling agent, with the CAS number 1233513-31-9. This chemical is valued for its ability to form stable bonds between organic polymers and inorganic materials, enhancing composite performance. It is primarily needed by manufacturers in the adhesives, sealants, coatings, and advanced materials industries seeking to improve adhesion, durability, and mechanical properties.

Application

• As a coupling agent in mineral-filled composites (e.g., fiberglass, silica) to improve resin-filler bonding and dispersion.
• A key intermediate in the synthesis of specialty silicone polymers and functionalized materials.
• Surface modification of inorganic fillers and nanoparticles to enhance compatibility with organic resin systems.
• Used in the formulation of high-performance adhesives and sealants to promote adhesion to difficult substrates like metals and glass.
• Improving the water resistance and weatherability of protective coatings and paints.
• Potential applications in the electronics industry for dielectric materials and encapsulation.

Basic Information

Product Name	3-Phenylpropylmethyldimethoxysilane
CAS No.	1233513-31-9
Molecular Formula	C12H20O2Si
Molecular Weight	224.37 g/mol
Synonyms	Methyldimethoxy(3-phenylpropyl)silane; (3-Phenylpropyl)methyldimethoxysilane; 3-Phenylpropyldimethoxymethylsilane; Dimethoxy(methyl)(3-phenylpropyl)silane; Silane, dimethoxy(3-phenylpropyl)methyl-; Phenylpropylmethyldimethoxysilane
EINECS	Contact for details

Quality Control

Our 3-Phenylpropylmethyldimethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including gas chromatography (GC) and infrared spectroscopy (IR), 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 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 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
Purity (GC)	≥ 97.0%
Refractive Index (n20/D)	1.480 - 1.490
Density (20°C)	0.97 - 1.00 g/mL

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