Description

(3-Chloropropyl)Diethoxymethylsilane is a versatile organosilicon compound featuring both a reactive chloropropyl group and hydrolyzable ethoxy groups. This bifunctional structure makes it a crucial intermediate for introducing silane functionality into organic matrices, enhancing adhesion, cross-linking, and surface modification. It is essential for manufacturers in the silicone polymer, adhesive, and advanced materials sectors seeking to improve product performance and durability.

Application

• Silicone Intermediate: A key monomer for the synthesis of specialty silicone oils, resins, and elastomers with modified properties.
• Coupling Agent: Used to promote adhesion between inorganic materials (like glass, minerals) and organic polymers in composites and filled systems.
• Surface Treatment: Applied to modify the surface energy and reactivity of silica, glass fibers, and other fillers to improve dispersion and compatibility in polymer matrices.
• Cross-linking Agent: Functions as a cross-linker in room-temperature vulcanizing (RTV) silicone sealants and adhesives.
• Chemical Synthesis: Serves as a protected precursor for the introduction of the 3-aminopropyl group after substitution of the chlorine atom.
• Hydrophobic Coatings: Used in formulations to create water-repellent and protective coatings on various substrates.

Basic Information

Product Name	(3-Chloropropyl)Diethoxymethylsilane
CAS No.	13501-76-3
Molecular Formula	C8H19ClO2Si
Molecular Weight	210.77 g/mol
Synonyms	Chloropropylmethyldiethoxysilane; 3-Chloropropylmethyldiethoxysilane; Diethoxy(3-chloropropyl)methylsilane; Methyl(3-chloropropyl)diethoxysilane; (3-Chloropropyl)methyldiethoxysilane; Silane, diethoxy(3-chloropropyl)methyl-; Dynasylan® 3201; A 1223
EINECS	236-826-1

Quality Control

Our production of (3-Chloropropyl)Diethoxymethylsilane adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure consistency and reliability. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed to prevent hydrolysis. Recommended storage temperature is between 15°C and 25°C. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Purity (GC)	≥ 97.0%
Refractive Index (n20/D)	1.420 - 1.425
Density (20°C)	0.99 - 1.01 g/mL
Chlorine Content	Contact for details

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