Description

n-Butylmethyldichlorosilane is a highly reactive organosilicon compound primarily used as a key intermediate in silicone chemistry. Its value lies in its dichlorosilane functionality, which enables efficient synthesis of a wide range of siloxanes, silanes, and silicone-modified polymers. This chemical is essential for manufacturers in the silicone elastomer, resin, and specialty chemical industries seeking to introduce n-butylmethylsiloxy units into their products to modify properties like hydrophobicity, flexibility, and thermal stability.

Application

• Silicone Intermediate: A fundamental building block for the synthesis of specific siloxane oligomers and polymers.
• Surface Modification: Used to create hydrophobic coatings on silica, glass, and other inorganic surfaces.
• Adhesive & Sealant Formulation: Serves as a cross-linking agent or modifier in high-performance silicone-based adhesives and sealants.
• Pharmaceutical & Agrochemical Intermediates: Employed in the synthesis of organosilicon compounds with biological activity.
• Release Coatings: A precursor in the production of silicone release liners for labels and tapes.
• Rubber & Elastomer Manufacturing: Imparts specific mechanical and release properties to silicone rubbers.
• Research & Development: A versatile reagent in organic and organometallic synthesis for introducing silyl protecting groups.

Basic Information

Product Name	n-Butylmethyldichlorosilane
CAS No.	18147-23-4
Molecular Formula	C5H12Cl2Si
Molecular Weight	171.14 g/mol
Synonyms	Butylmethyldichlorosilane; Dichloro(butyl)methylsilane; Methylbutyldichlorosilane; n-Butylmethylchlorosilane; Dichloromethylbutylsilane; 1-Butylmethyldichlorosilane; Methyl-n-butyldichlorosilane; Silane, dichloromethylbutyl-
EINECS	Contact for details

Quality Control

Our n-Butylmethyldichlorosilane is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing including gas chromatography (GC) and titration methods. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each 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 highly volatile and hygroscopic nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from strong acids, bases, and oxidizing agents. Recommended storage temperature: 2-8°C for extended stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (at 20°C)	~1.02 g/cm³
Refractive Index (n20D)	~1.428
Chloride Content	Contact for details

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