Description

[(2-Butyloctyl)Oxy]Trimethylsilane is a specialized organosilicon compound, also known as a branched alkyl alkoxysilane, valued for its unique hydrophobic and surface-modifying properties. This chemical is essential for formulators and manufacturers seeking to impart water repellency, improve compatibility, and enhance the performance of various materials. It is particularly relevant for industries focused on advanced coatings, sealants, and polymer modification where long-chain alkyl branching provides specific performance advantages.

Application

• As a hydrophobic agent and coupling agent in silicone sealants and construction materials.
• As a surface modifier for inorganic fillers (e.g., silica, calcium carbonate) to improve dispersion in organic polymer matrices.
• As a key intermediate or additive in the synthesis of specialty silicones and release coatings.
• In the formulation of water-repellent coatings for textiles, leather, and paper.
• As a compatibilizer and processing aid in engineering plastics and composites.
• For research and development of novel materials requiring specific surface energy control.

Basic Information

Product Name	[(2-Butyloctyl)Oxy]Trimethylsilane
CAS No.	74421-15-1
Molecular Formula	C₁₅H₃₄OSi
Molecular Weight	258.52 g/mol
Synonyms	Trimethyl[(2-butyloctyl)oxy]silane; (2-Butyloctyloxy)trimethylsilane; Silane, trimethyl[(2-butyloctyl)oxy]-; 2-Butyloctyloxytrimethylsilane; 1-(Trimethylsilyloxy)-2-butyloctane; O-[(2-Butyloctyl)]trimethylsilanol (ether); Branched C12 alkoxytrimethylsilane
EINECS	Contact for details

Quality Control

Our production of [(2-Butyloctyl)Oxy]Trimethylsilane adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing all specifications are provided with each shipment to guarantee traceability and compliance with your technical requirements.

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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed after initial opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.430 - 1.440
Density (20°C)	0.82 - 0.86 g/mL

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