Description

Carbazolepropyltriethoxysilane is a high-purity organosilane coupling agent featuring a carbazole functional group. This compound is engineered to provide superior adhesion, surface modification, and compatibility between inorganic substrates and organic polymers or resins. It is essential for manufacturers and R&D teams in advanced material science seeking to enhance the performance and durability of composite systems. Key industries that utilize this specialty silane include electronics, advanced coatings, and high-performance plastics.

Application

• Surface Modification Agent: Used to functionalize glass, silica, and metal oxide surfaces to improve polymer adhesion and dispersion.
• Advanced Composite Materials: Acts as a coupling agent in fiber-reinforced plastics (FRP) and mineral-filled composites to enhance mechanical properties.
• Electronic Encapsulants & Adhesives: Improves the interfacial bonding and moisture resistance in epoxy resins and silicones used for semiconductor packaging.
• Optical and Photoconductive Materials: Serves as a key precursor or additive in the synthesis of organic light-emitting diodes (OLEDs) and photorefractive polymers due to the carbazole moiety.
• Specialty Coatings: Enhances the adhesion, scratch resistance, and chemical stability of protective and functional coatings on various substrates.
• Research & Development: A valuable building block in organic synthesis and material science for developing novel hybrid organic-inorganic materials.

Basic Information

Product Name	Carbazolepropyltriethoxysilane
CAS No.	221105-38-0
Molecular Formula	C21H29NO3Si
Molecular Weight	371.55 g/mol
Synonyms	3-(Carbazol-9-yl)propyltriethoxysilane; 9H-Carbazole-9-propanol, 3-(triethoxysilyl)-; (3-(9H-Carbazol-9-yl)propyl)triethoxysilane; N-(3-Triethoxysilylpropyl)carbazole; Carbazole-9-propyltriethoxysilane; Silane, triethoxy[3-(9H-carbazol-9-yl)propyl]-; Carbazole functional silane; CPTES
EINECS	Contact for details

Quality Control

Our Carbazolepropyltriethoxysilane is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC, GC) and spectroscopy (NMR, IR), to ensure high purity and consistent performance. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support custom synthesis and purity grades to meet specific project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation from moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.520 - 1.530
Density (g/mL, 20°C)	1.05 - 1.10

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