Description

Propyltris(Trimethylsiloxy)Silane is a versatile organosilicon compound, specifically a functionalized silane coupling agent. Its molecular structure, featuring a propyl group and three trimethylsiloxy moieties, provides unique reactivity and compatibility with various inorganic and organic matrices. This chemical is essential for formulators and manufacturers seeking to modify surface properties, enhance adhesion, or create cross-linked networks in advanced materials. Key industries that utilize this product include specialty polymers, advanced coatings, and high-performance sealants.

Application

• As a cross-linking agent and chain extender in silicone resin and rubber formulations.
• As a surface modifying agent for inorganic fillers like silica, improving dispersion and compatibility in polymer composites.
• As a key intermediate in the synthesis of more complex functional silanes and silicone-based materials.
• In the formulation of release coatings and non-stick surfaces.
• For enhancing the water repellency and durability of stone, concrete, and textile treatments.
• As a component in adhesion promoters for coatings and adhesives on difficult-to-bond substrates.
• In the production of silicone pressure-sensitive adhesives (PSAs) with tailored properties.

Basic Information

Product Name	Propyltris(Trimethylsiloxy)Silane
CAS No.	60111-46-8
Molecular Formula	C12H32O3Si4
Molecular Weight	324.73 g/mol
Synonyms	Propyltris(trimethylsiloxy)silane; Tris(trimethylsiloxy)(propyl)silane; Propylsilane tris(trimethylsilanolate); 1-Propyltris(trimethylsiloxy)silane; Silane, propyltris(trimethylsiloxy)-; (Propyl)tris(trimethylsiloxy)silane; Tris-O-(trimethylsilyl) propylorthosilicate; Contact for additional trade names.
EINECS	262-104-4

Quality Control

Our Propyltris(Trimethylsiloxy)Silane is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and NMR, to ensure high purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing key specifications such as assay and impurity profiles. Our quality system is designed to meet the stringent requirements of industrial and R&D applications.

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 opening to prevent degradation by atmospheric moisture. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.390 - 1.410
Density (20°C)	0.88 - 0.92 g/mL

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