Description

Carbonic Acid Bis[3-[Methyldiethoxysilyl]Propyl] Ester is a specialized organosilicon compound that serves as a versatile coupling agent and crosslinking precursor. Its molecular structure, featuring dual hydrolyzable ethoxysilyl groups, enables strong adhesion between inorganic substrates and organic polymers. This product is essential for formulators and manufacturers seeking to enhance the mechanical properties, durability, and chemical resistance of composite materials. Key industries that rely on this advanced silane include adhesives, sealants, coatings, and advanced resin systems.

Application

• As a coupling agent in mineral-filled composites (e.g., glass fiber, silica, talc) to improve interfacial adhesion and mechanical strength.
• As a crosslinking agent and moisture scavenger in silicone sealants, adhesives, and RTV (Room Temperature Vulcanizing) rubbers.
• Surface modification of inorganic nanoparticles and fillers to enhance their dispersion and compatibility within polymer matrices.
• Formulation of primers and adhesion promoters for coatings on glass, metals, and ceramics.
• As an intermediate in the synthesis of more complex organosilicon molecules and specialty polymers.
• Improving the water resistance and weatherability of construction materials and industrial coatings.

Basic Information

Product Name	Carbonic Acid Bis[3-[Methyldiethoxysilyl]Propyl] Ester
CAS No.	93238-03-0
Molecular Formula	C19H42O8Si2
Molecular Weight	466.71 g/mol
Synonyms	Bis(3-(methyldiethoxysilyl)propyl) carbonate; Carbonate-bridged silane; 3-[(Methyldiethoxysilyl)propyl] carbonate dimer; Silane coupling agent 93238-03-0; Propyl carbonate silane; Diethoxy(methyl)silylpropyl carbonate; Bis(triethoxysilylpropyl) carbonate derivative; Organosilicon carbonate ester
EINECS	Contact for details

Quality Control

Every batch of our Carbonic Acid Bis[3-[Methyldiethoxysilyl]Propyl] Ester is manufactured under strict quality management protocols. We ensure consistent purity and performance through comprehensive analytical testing, including assay, identity confirmation, and impurity profiling. Certificates of Analysis (COA) documenting key specifications are provided with each shipment and are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C/59-77°F). Keep the container tightly sealed under a dry, inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC or HPLC)	≥ 95.0%
Refractive Index (n20D)	1.420 - 1.430
Density (g/mL, 20°C)	1.00 - 1.05
Moisture (Karl Fischer)	≤ 0.5%

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