Description

Allyldimethylchlorosilane is a highly reactive organosilicon compound, specifically a chlorosilane, widely used as a versatile building block in organic synthesis and materials science. Its core value lies in its ability to introduce the allyl and silyl functional groups into target molecules, enabling the creation of advanced polymers, surface modifiers, and specialty chemicals. This product is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and silicone polymer industries who require a reliable, high-purity reagent for functionalization and cross-linking reactions.

Application

• Silicone Polymer Synthesis: A key monomer and cross-linking agent in the production of specialty silicone elastomers and resins.
• Surface Modification & Coupling Agent: Used to functionalize inorganic surfaces (e.g., silica, glass) to improve adhesion and compatibility in composite materials.
• Organic Synthesis Intermediate: Serves as a crucial reagent for introducing silicon-protecting groups and for hydrosilylation reactions in fine chemical and pharmaceutical manufacturing.
• Adhesive & Sealant Formulations: Imparts specific reactivity and properties in high-performance silicone-based adhesives and sealants.
• Release Coatings: Employed in the synthesis of silicone release agents for papers, films, and labels.
• Rubber & Plastic Additives: Acts as a modifier to enhance the processing and performance characteristics of various polymer systems.

Basic Information

Product Name	Allyldimethylchlorosilane
CAS No.	4028-23-3
Molecular Formula	C5H11ClSi
Molecular Weight	134.68 g/mol
Synonyms	Allyldimethylsilyl chloride; Allyl(chloro)dimethylsilane; Chloro(allyl)dimethylsilane; Dimethylallylchlorosilane; (Allyl)dimethylchlorosilane; Allyldimethylchlorosilane; 3-Buten-1-yl-dimethylchlorosilane; Allyl dimethylsilyl chloride
EINECS	223-704-7

Quality Control

Our Allyldimethylchlorosilane is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including Gas Chromatography (GC) for assay and impurity profiling. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support our global B2B clients with the documentation and quality assurance required for their specific applications and regulatory needs.

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 highly volatile and moisture-sensitive (hygroscopic) nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and maintain product integrity. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (at 20°C)	0.88 - 0.92 g/mL
Refractive Index (n20/D)	1.425 - 1.435
Water Content (KF)	≤ 0.1%

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