Description

o-(Methacryloxyethyl)-n-(Triethoxysilylpropyl)Urethane CAS NO 115396-93-5 is a high-performance, dual-functional silane coupling agent that combines a methacrylate group with a hydrolyzable triethoxysilyl group via a urethane linkage. This unique molecular architecture is critical for creating durable covalent bonds between inorganic substrates and organic polymer matrices, significantly enhancing composite material performance. It is an essential raw material for manufacturers in the adhesives, sealants, coatings, and advanced composite materials industries seeking to improve adhesion, mechanical strength, and environmental resistance.

Application

• Adhesives & Sealants: As a key adhesion promoter in acrylic, polyurethane, and silicone-based formulations for bonding glass, metals, and plastics.
• Coatings & Inks: Used to enhance the adhesion, scratch resistance, and durability of radiation-curable (UV/EB) coatings, paints, and printing inks on difficult substrates.
• Fiber-Reinforced Composites: Acts as a critical sizing agent or coupling agent for glass and carbon fibers to improve the fiber-matrix interface and composite mechanical properties.
• Dental & Medical Materials: Employed in dental composites and restorative materials to bond filler particles (e.g., silica) to the resin matrix.
• Rubber & Tire Manufacturing: Used as a coupling agent for silica-filled rubber compounds to reduce rolling resistance and improve wear characteristics.
• Plastics Modification: Enhances the compatibility and dispersion of mineral fillers in engineering thermoplastics and thermosets.

Basic Information

Product Name	o-(Methacryloxyethyl)-n-(Triethoxysilylpropyl)Urethane
CAS No.	115396-93-5
Molecular Formula	C18H35NO7Si
Molecular Weight	405.57 g/mol
Synonyms	3-(Triethoxysilyl)propyl 2-Methyl-2-propenoate Carbamate; 3-(Triethoxysilyl)propyl (2-Methacryloyloxyethyl) Carbamate; γ-Methacryloxypropyltrimethoxysilane Urethane Derivative; Ureido Silane Methacrylate; Methacryloxyethyl Carbamatopropyltriethoxysilane; Silane Coupling Agent MEMO; Ureidosilane; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our production of o-(Methacryloxyethyl)-n-(Triethoxysilylpropyl)Urethane adheres to a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC, HPLC, and FT-IR to verify chemical identity, assay, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment, and we support compliance with relevant global regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and polymerization. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC/HPLC)	≥ 97.0%
Refractive Index (n20D)	1.440 - 1.450
Density (g/mL, 20°C)	1.05 - 1.10
Moisture (KF)	≤ 0.5%

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