Description

Trimethoxysilane is a versatile organosilicon compound widely used as a key building block in the synthesis of advanced materials. Its reactive methoxy groups make it an essential precursor for creating silane coupling agents, silicone resins, and surface-modifying coatings. This product is particularly valuable for manufacturers in the adhesives, sealants, and specialty polymer industries seeking to enhance material compatibility and performance.

Application

• Silane Coupling Agent Precursor: A primary intermediate for manufacturing a wide range of organofunctional silanes used to improve adhesion between organic polymers and inorganic substrates.
• Surface Treatment & Modification: Used to create hydrophobic, oleophobic, or cross-linked surface coatings on glass, metals, and minerals.
• Silicone Resin Synthesis: Serves as a fundamental monomer in the production of methylsilicone resins and other silicone-based polymers.
• Adhesives and Sealants: Imparts improved weather resistance, adhesion, and mechanical properties to formulated products.
• Nanomaterial Functionalization: Employed to modify the surface chemistry of silica nanoparticles and other nanomaterials for specific applications.
• Chemical Intermediate: Used in organic synthesis for introducing the trimethoxysilyl group into more complex molecules.

Basic Information

Product Name	Trimethoxysilane
CAS No.	2487-90-3
Molecular Formula	C3H10O3Si
Molecular Weight	122.20 g/mol
Synonyms	Methyltrimethoxysilane; Trimethoxymethylsilane; Silane, trimethoxy-; Methylsilanetriol trimethyl ether; Dynasylan MTMS; M 9050; A-1630; TMS
EINECS	219-656-8

Quality Control

Our Trimethoxysilane is produced under stringent quality management systems to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation. A detailed Certificate of Analysis (COA) documenting all relevant specifications is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat and ignition sources. Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain product integrity. Recommended storage temperature is 2-25°C.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0 %
Density (at 20°C)	0.950 - 0.960 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.