Description

n-[2-[[3-(Trimethoxysilyl)Propyl]Amino]Ethyl]Stearamide Monohydrochloride is a specialized organosilicon compound that combines a long-chain fatty amide with an amino-functional silane. This unique structure provides excellent coupling and surface-modifying properties, making it a critical component for enhancing material compatibility and adhesion. It is primarily used by formulators and manufacturers in the coatings, plastics, and rubber industries to improve the dispersion of fillers and the bonding between organic polymers and inorganic substrates.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and acrylic coating systems.
• To improve filler dispersion and reinforcement in silicone rubber, EPDM, and other elastomeric compounds.
• As a surface modifier for inorganic fillers like silica, clay, and calcium carbonate to enhance compatibility with polymer matrices.
• In the formulation of primers and sealants to promote bonding to difficult substrates such as glass, metals, and treated plastics.
• For the hydrophobization and functionalization of nanoparticle surfaces in advanced material synthesis.
• As an additive to improve the water resistance and mechanical properties of composite materials.

Basic Information

Product Name	n-[2-[[3-(Trimethoxysilyl)Propyl]Amino]Ethyl]Stearamide Monohydrochloride
CAS No.	67674-59-3
Molecular Formula	C₂₆H₅₅N₂O₄Si·HCl
Molecular Weight	~523.3 g/mol
Synonyms	N-[2-[[3-(Trimethoxysilyl)propyl]amino]ethyl]octadecanamide hydrochloride; Stearamidoethylaminopropyltrimethoxysilane hydrochloride; 3-[(2-Stearamidoethyl)amino]propyltrimethoxysilane hydrochloride; Amino-functional silane stearamide derivative; AS-78 (potential trade name); SCA-V 18 (potential trade name); Silane coupling agent with stearamide group
EINECS	Contact for details

Quality Control

Our production of n-[2-[[3-(Trimethoxysilyl)Propyl]Amino]Ethyl]Stearamide Monohydrochloride adheres to strict quality management protocols. Each batch is analyzed to ensure consistent chemical composition, purity, and performance characteristics. Certificates of Analysis (COA) documenting key parameters such as assay, identity, and appearance are available upon request to support your quality assurance and regulatory needs.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Loss on Drying	≤ 2.0%
Silane Content	Contact for details
Amino Value	Contact for details

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