N-phenyl-3- Aminopropyltrimethoxysilane

Chemical Name:	N-Phenyl-3-Aminopropyltrimethoxysilane
Product Category:	Amino Silanes \| Silane Coupling Agent
Structural Formula:
CAS No.:	3068-76-6
EINECS:	221-328-2
Molecular Formula:	C12H21NO3Si
Molecular Weight:	255.12900

N-Phenyl-3-Aminopropyltrimethoxysilane

N-Phenyl-3-Aminopropyltrimethoxysilane (CAS 3068-76-6) is a clear, colorless to light yellow liquid. It acts as a coupling agent, adhesion promoter, curing agent, and surface modifier. This silane compound rapidly hydrolyzes, speeding up reactions and curing times. It is widely used in plastics (like cables and fiberglass), rubber products, adhesives, coatings, inks, magnetic materials, and resin-based products such as concrete and casting resins.

Chemical name	N-Phenyl-3-Aminopropyltrimethoxysilane
Synonyms	Momentive Silquest Y-9669 or ShinEtsu KBM-573 N-[3-(Trimethoxysilyl)propyl]aniline; N-Phenylaminopropyltrimethoxysilane; TriMethoxy[3-(phenylaMino)propyl]silane; N-(3-(Trimethoxysilyl)propyl)aniline;
Appearance	Yellow to reddish brown liquid
Refractive index(n25D)	1.4960~1.5160
Purity	95%
Uses	It maximizes the physical and electrical properties of mineral-filled phenolics, epoxies, polyamides, polybutylene terephthalate, and a host of other thermoset and thermoplastic composites. It improves adhesion between magnetic powder and organic resins and dispersion of magnetic powder inorganic resins. Also these magnetic appliances attain higher magnetic orientation and excellent magnetic properties, higher mechanical strength, good processability, excellent weathering resistance. It greatly improves wet electrical properties. With nitrile, polysulfide, epoxy, urethane, and adhesives and sealants, It improves pigment dispersion and maximizes adhesion to glass, aluminum, and steel. In glass fiber and mineral wool insulation, as a phenolics resin binder additive, It imparts moisture resistance and allows recovery after compression. In shell molding foundry applications, it strengthens the bond between the phenolics binder and foundry sand.
Hazardous	NOT
Transportation & Safety info	UN No.: UN 2735 Transport hazard class(es) : 8 Packing group: III
Packaging	Our standard packing is net 25kg / 200 kg drums / 1000kg/IBC，or according to your requirements.
Sample	Provided for free
Inventory items	1 tons
Price	Please contact us to get the new price.

Packaging Specifications

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N-phenyl-3- Aminopropyltrimethoxysilane: Guide

The full chemical name of CAS 3068-76-6 is N-Phenyl-3-Aminopropyltrimethoxysilane. This silane contains one reactive amino group and three hydrolyzable methoxysilane groups, enabling strong bonding between inorganic materials and organic polymers. It enhances composite performance by improving bond strength and is ideal for joining materials with different properties.

With both phenyl and amino groups, CAS 3068-76-6 is an effective adhesion promoter for various resin systems. It also offers excellent thermal stability, making it suitable for high-temperature applications.