3-Ureidopropyltrimethoxysilane

3-Ureidopropyltrimethoxysilane (CAS 23843-64-3) is a bifunctional organosilane coupling agent that combines a reactive ureido group with hydrolyzable trimethoxysilyl groups.

Item NO.:
Crosile-116
Payment:
TT or LC
Chemical Name:
3-Ureidopropyltrimethoxysilane
Properties:
Increase adhesion

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3-Ureidopropyltrimethoxysilane

Bifunctional organosilane coupling agent delivering superior stability in reactive polymer systems.

Product Description

3-Ureidopropyltrimethoxysilane (CAS 23843-64-3) is a bifunctional organosilane coupling agent that combines a reactive ureido group with hydrolyzable trimethoxysilyl groups. Its unique ureido functionality delivers a distinctive advantage over conventional aminosilanes: superior stability in reactive polymer systems without the strong basicity that can trigger premature curing or undesirable side reactions. This makes it an ideal solution for demanding applications where both adhesion performance and system stability are critical.

Chemical Identity

Molecular Formula: C7H18N2O4Si
Molecular Weight: 222.31432
CAS Registry Number: 23843-64-3
EINECS: 245-904-8
Synonyms: Ureidopropyltrimethoxysilane Trimethoxysilylpropylurea, 3-Trimethoxysilylpropylurea

Key Features

Bifunctionality

Bifunctional coupling agent combining a reactive ureido group with hydrolyzable trimethoxysilyl groups.

Ureido Advantage

Unique ureido functionality delivers a distinctive advantage over conventional aminosilanes.

System Stability

Superior stability in reactive polymer systems without the strong basicity that can trigger premature curing or undesirable side reactions.

Performance Improvement

Corrosion Resistance: Improve corrosion resistance.

Mechanical & Wear Resistance: Improve mechanical properties and wear resistance.

Adhesion: Improve adhesion.

Technical Specifications

Property	Target Values (Spec Limits)
Appearance	Amber clear liquid
Color Pt-co	≤35
Density(ρ25) g/cm3	1.120-1.180
pH Value	6-7
Refractive Index (n25D)	1.450-1.470

Application Scenarios

Metal Surface Protection

Antirust agent for metal surface.

Filled Polymer Materials

Filled polymer material.

Minimalist vector line icon illustrating molecular polymer chains connected by cross-linking bridges to show reinforcing properties of silane coupling agents.

Reinforcing & Crosslinking

Reinforcing agent and crosslinking accelerator.

Packaging & Storage

Packaging: 25Kg, 200Kg or 1000Kg /drum
Storage: This product must be sealed. dry and ventilated place, avoid direct sunlight.
Reminde if keep in cold temperature ,it will be sticky ,need to be warmed once again .
Shelf Life: 6 Months in ventilating, cool and dry area.

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