Description

Diethoxydimethylsilane is a versatile organosilicon compound widely used as a key building block in silicone chemistry. Its primary value lies in its ability to act as a reactive intermediate for introducing dimethylsiloxy groups into larger molecules, enabling the synthesis of modified silicones, silane coupling agents, and protective coatings. This product is essential for manufacturers and R&D teams in the pharmaceutical intermediates, specialty polymers, and advanced materials sectors seeking to enhance product performance and functionality.

Application

• Silicone Intermediate: A fundamental precursor in the synthesis of various polydimethylsiloxanes (PDMS) and modified silicone fluids, resins, and elastomers.
• Surface Modification Agent: Used to hydrophobize and modify the surface properties of inorganic materials like silica, glass, and metals for improved compatibility in composite materials.
• Silane Coupling Agent Synthesis: Serves as a starting material for manufacturing more complex silane coupling agents used to bond organic polymers to inorganic substrates.
• Pharmaceutical & Agrochemistry: Employed as a reagent in the synthesis of active pharmaceutical ingredients (APIs) and agrochemicals where silicon-containing moieties are required.
• Protective Coatings: A component in formulations for creating water-repellent and corrosion-resistant coatings on various surfaces.
• Adhesive & Sealant Formulations: Imparts specific rheological and cross-linking properties in high-performance silicone-based adhesives and sealants.
• Research & Development: A valuable reagent in organic and organometallic synthesis for academic and industrial research laboratories.

Basic Information

Item	Details
Product Name	Diethoxydimethylsilane
CAS No.	28-62-6
Molecular Formula	C6H16O2Si
Molecular Weight	148.28 g/mol
Synonyms	Dimethyldiethoxysilane; Diethoxy(dimethyl)silane; Dimethyl diethoxysilane; Diethoxydimethylsilane; Silane, diethoxydimethyl-; Ethoxy(dimethyl)silane (mixture); DMDES; EINECS 200-908-5
EINECS	200-908-5

Quality Control

Our Diethoxydimethylsilane is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay by GC, identity confirmation (IR), and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols and regulatory compliance needs.

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 nature, containers must be kept tightly sealed to prevent moisture ingress, which can lead to hydrolysis. Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (n20D)	1.382 - 1.386
Density (20°C)	0.85 - 0.87 g/mL
Water Content (KF)	≤ 0.1%

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