Description

Pentyltriethoxysilane is a versatile organosilicon compound, specifically an alkyltrialkoxysilane, widely used as a coupling agent and surface modifier. Its core value lies in its ability to form durable bonds between organic polymers and inorganic materials, enhancing composite performance and adhesion. This product is essential for manufacturers in the coatings, sealants, and advanced materials sectors who require improved mechanical properties, water repellency, and chemical resistance in their formulations.

Application

• As a coupling agent in mineral-filled composites (e.g., fiberglass, silica-filled rubber) to improve filler dispersion and interfacial strength.
• As a surface treatment agent for glass, metals, and minerals to impart hydrophobicity and enhance adhesion of paints, inks, and adhesives.
• In the synthesis of silicon-based resins and hybrid organic-inorganic materials (ORMOSILs) for specialty coatings and optical applications.
• As a crosslinking agent or reactive intermediate in silicone polymer chemistry and the production of modified silanes.
• For the waterproofing and protection of construction materials like concrete and stone.
• In the formulation of release coatings and mold-making materials within the manufacturing industry.

Basic Information

Product Name	Pentyltriethoxysilane
CAS No.	2761-24-2
Molecular Formula	C11H26O3Si
Molecular Weight	234.41 g/mol
Synonyms	Amyltriethoxysilane; n-Pentyltriethoxysilane; Triethoxy(pentyl)silane; Triethoxypentylsilane; Silane, pentyltriethoxy-; 1-Triethoxysilylpentane; n-Amyltriethoxysilane; Triethoxyamylsilane
EINECS	220-426-8

Quality Control

Our Pentyltriethoxysilane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and FTIR spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) documenting identity, assay, and impurity profiles are available upon request to support your quality assurance protocols.

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.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	0.88 - 0.90 g/mL
Refractive Index (n20D)	1.405 - 1.415

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