Description

Dimethyloctylsilane is a versatile organosilicon compound characterized by its hydrophobic alkyl chain and reactive silicon hydride group. This unique structure makes it a valuable intermediate for introducing octyl functionality and modifying surface properties in advanced materials. It is essential for manufacturers in the silicone, coatings, and specialty chemical industries seeking to enhance product performance. The compound is supplied under the identifier CAS NO 40934-68-7.

Application

• Silicone Intermediate: A key building block for synthesizing custom silicone oils, fluids, and resins with specific chain lengths and properties.
• Surface Modification Agent: Used to hydrophobize and impart release properties to surfaces of glass, silica, and minerals.
• Adhesion Promoter: Functions as a coupling agent to improve the bond between organic polymers and inorganic substrates in composites and sealants.
• Lubricant & Release Additive: Incorporated into formulations for plastics, rubbers, and molds to reduce friction and facilitate demolding.
• Pharmaceutical & Cosmetic Ingredient: Serves as a precursor for siloxane-based excipients used in topical formulations and personal care products.
• Research & Development: Employed in organic and organometallic synthesis to create novel materials with tailored functionalities.

Basic Information

Item	Detail
Product Name	Dimethyloctylsilane
CAS No.	40934-68-7
Molecular Formula	C10H24Si
Molecular Weight	172.39 g/mol
Synonyms	Octyldimethylsilane; Dimethyl-n-octylsilane; n-Octyldimethylsilane; Dimethyl(octyl)silane; 1,1-Dimethyl-1-octylsilane; (Dimethyloctylsilyl)hydride; Octyl(dimethyl)silane; Silane, dimethyloctyl-
EINECS	Contact for details

Quality Control

Our Dimethyloctylsilane is produced and tested under a rigorous quality management system. Each batch is analyzed to ensure it meets precise chemical and physical specifications, with purity typically exceeding 97%. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen) after opening to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	0.76 - 0.78 g/mL
Refractive Index (n20D)	1.420 - 1.425

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