Description

Benzoyloxypropyltrimethoxysilane is a specialized organosilane coupling agent featuring a reactive benzoyloxy group. This compound is engineered to enhance the adhesion and compatibility between organic polymers and inorganic substrates, such as glass, metals, and minerals. It is a critical raw material for manufacturers in the adhesives, sealants, coatings, and advanced composite materials industries seeking to improve product performance and durability.

Application

• As a coupling agent in mineral-filled composites (e.g., talc, silica, calcium carbonate) to improve dispersion and mechanical properties.
• Surface modification of glass fibers and fillers to enhance bonding with epoxy, polyester, or polyurethane resins.
• A key intermediate in the synthesis of specialty silicone polymers and functionalized silanes for advanced material science.
• Improving the adhesion of paints, coatings, and inks to difficult-to-bond metallic or mineral surfaces.
• Used in the formulation of high-performance sealants and adhesives requiring excellent moisture resistance and bond strength.
• Potential applications in electronics encapsulation and dielectric materials where interfacial stability is crucial.

Basic Information

Product Name	Benzoyloxypropyltrimethoxysilane
CAS No.	76241-02-6
Molecular Formula	C13H20O5Si
Molecular Weight	284.38 g/mol
Synonyms	3-(Benzoyloxy)propyltrimethoxysilane; (3-Trimethoxysilylpropyl) benzoate; Trimethoxy[3-(benzoyloxy)propyl]silane; Benzoyloxypropyltrimethoxysilane; Silane, trimethoxy[3-(benzoyloxy)propyl]-; Propyltrimethoxysilane, benzoyloxy-; 76241-02-6
EINECS	Contact for details

Quality Control

Our Benzoyloxypropyltrimethoxysilane is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed against stringent internal specifications, which typically include assay, identity confirmation, and impurity profiling. A Certificate of Analysis (COA) detailing all relevant parameters is provided with every shipment to guarantee compliance with your technical requirements.

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). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen) to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC or HPLC)	≥ 97.0%
Refractive Index (n20/D)	1.460 - 1.470
Density (20°C)	1.05 - 1.10 g/cm³

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