Description

Silane, (Cyclopentyloxy)Triethyl- (9Ci) is a specialized organosilicon compound that serves as a versatile coupling agent and surface modifier. Its unique structure, featuring a cyclopentyloxy group, makes it a valuable intermediate for imparting specific hydrophobic and adhesion-promoting properties to inorganic materials. This chemical is essential for manufacturers and R&D teams in the advanced materials and specialty chemical sectors seeking to enhance product performance. It is particularly relevant for applications requiring tailored surface energy and improved compatibility between organic polymers and inorganic substrates.

Application

• As a surface treatment agent for glass, silica, and other mineral fillers to improve dispersion and bonding in polymer composites.
• As a coupling agent in silicone resin formulations and hybrid organic-inorganic materials (ORMOSILs).
• As a key intermediate in the synthesis of more complex silane derivatives for specialized applications.
• In the formulation of adhesion promoters for coatings, sealants, and adhesives on difficult-to-bond surfaces.
• For hydrophobic modification of nanoparticles and pigments to prevent agglomeration and enhance compatibility with non-polar matrices.
• In research and development of novel release coatings and low-surface-energy materials.

Basic Information

Product Name	Silane, (Cyclopentyloxy)Triethyl- (9Ci)
CAS No.	51440-20-1
Molecular Formula	C11H24O2Si
Molecular Weight	216.40 g/mol
Synonyms	Triethyl(cyclopentyloxy)silane; Cyclopentyloxy triethylsilane; (Cyclopentyloxy)triethylsilane; Triethyl(cyclopentyloxy)silane; Triethylsilane, cyclopentyloxy-; Silane, triethyl(cyclopentyloxy)-; (Cyclopentyloxy)triethylsilane; Triethyl(cyclopentyloxy)silane
EINECS	Contact for details

Quality Control

Our production of (Cyclopentyloxy)Triethylsilane adheres to stringent internal quality standards to ensure batch-to-batch consistency and reliability. Each lot is analyzed using advanced techniques including GC, NMR, and Karl Fischer titration to confirm identity, purity, and moisture content. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment. We are committed to meeting the specific purity requirements of our customers, from technical to high-purity grades.

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 compound is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Density (20°C)	~0.88 g/mL
Refractive Index (n20/D)	~1.425

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