Description

Dodecafluoroheptylpropyltrimethoxysilane is a high-performance fluorinated organosilane coupling agent, essential for imparting exceptional water, oil, and stain repellency to surfaces. Its unique molecular structure, featuring a long perfluoroalkyl chain, enables durable surface modification and enhanced compatibility with various substrates. This compound is critical for manufacturers in the coatings, textiles, and advanced materials sectors seeking to develop products with superior hydrophobic and oleophobic properties.

Application

• As a key additive in hydrophobic and oleophobic coatings for textiles, leather, and paper.
• Surface modification agent for nanoparticles and fillers to improve dispersion in fluoropolymer matrices.
• Primer or adhesion promoter for fluorinated sealants and elastomers on difficult-to-bond substrates like glass or metals.
• Imparting low surface energy and release properties to molds and industrial surfaces.
• Modifying stone and masonry to provide long-lasting water and oil repellency.
• Enhancing the performance of optical films and electronic components by providing moisture resistance.

Basic Information

Product Name	Dodecafluoroheptylpropyltrimethoxysilane
CAS No.	1105578-57-1
Molecular Formula	C₁₃H₁₃F₁₂O₃Si
Molecular Weight	548.30 g/mol
Synonyms	1H,1H,2H,2H-Perfluorodecyltrimethoxysilane; 3,3,4,4,5,5,6,6,7,7,8,8-Dodecafluorooctyltrimethoxysilane; (3,3,4,4,5,5,6,6,7,7,8,8-Dodecafluorooctyl)trimethoxysilane; Heptadecafluorodecyltrimethoxysilane (common misnomer); F13-TriMethoxySilane; FDTS analog; Fluorinated alkylsilane; Perfluoroalkylsilane coupling agent
EINECS	Contact for details

Quality Control

Our Dodecafluoroheptylpropyltrimethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and FTIR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee reliable performance in your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its moisture-sensitive (hygroscopic) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Clear colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (25°C)	~1.5 g/mL
Refractive Index (n20D)	~1.35
Water Content (KF)	≤ 0.1%

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