Description

Dimethoxysilane is a versatile organosilicon compound, also known as CAS NO 5314-52-3, valued for its reactivity as a key chemical building block. Its bifunctional nature, featuring both hydrolyzable methoxy groups and a reactive Si-H bond, makes it an essential precursor in the synthesis of advanced silicone materials and surface-modifying agents. This product is critical for manufacturers in the silicone polymer, specialty coatings, and adhesives industries seeking to introduce specific functionalities into their formulations.

Application

• Silicone Intermediate: A fundamental monomer for the production of modified silicone oils, resins, and elastomers.
• Crosslinking Agent: Used in moisture-curable systems for sealants, adhesives, and coatings to provide enhanced durability and adhesion.
• Surface Treatment: Imparts hydrophobic properties to inorganic surfaces like glass, silica, and metals for improved water repellency and compatibility.
• Chemical Synthesis: Serves as a key reagent in organic synthesis for introducing silyl groups and in the preparation of other functional silanes.
• Adhesion Promoter: Enhances the bond between organic polymers and inorganic substrates in composite materials.
• Pharmaceutical & Agrochemistry: Employed as an intermediate in the synthesis of more complex molecules for active ingredients or performance additives.

Basic Information

Product Name	Dimethoxysilane
CAS No.	5314-52-3
Molecular Formula	C2H8O2Si
Molecular Weight	104.17 g/mol
Synonyms	Methoxysilane; Dihydroxydimethylsilane (misnomer); Silane, dimethoxy-; Hydrogen dimethoxysilane; HS(OCH3)2; (Dimethoxysilyl)hydride; DMOS
EINECS	226-160-8

Quality Control

Our Dimethoxysilane is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including assay by GC, purity verification, and impurity profiling, to ensure it meets exacting industry standards. A detailed Certificate of Analysis (COA) documenting all test results is provided with every shipment to guarantee traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic and highly volatile nature, store under a dry, inert atmosphere (e.g., nitrogen or argon) in a cool, well-ventilated area. Recommended storage temperature is 2-8°C to maximize stability and shelf life. Keep away from heat, sparks, open flames, and incompatible materials such as strong oxidizers, acids, and bases.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Density (at 20°C)	0.85 - 0.87 g/mL
Refractive Index (n20D)	1.368 - 1.372
Water Content (Karl Fischer)	≤ 0.1%

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