Silicones & Silicates
REACH
Bis(trimethoxysilylpropyl)amine
CAS Number
82985-35-1
EC Number
280-084-5
What is Bis(trimethoxysilylpropyl)amine?
Bis(trimethoxysilylpropyl)amine (CAS 82985-35-1) is a bifunctional aminosilane coupling agent carrying two trimethoxysilyl groups bridged through a secondary amine. Also marketed as Dynasylan 1124.
Where is Bis(trimethoxysilylpropyl)amine used?
- Rubber and polymer compounding: crosslinker and coupling agent
- Silica-filled systems: improves filler dispersion and reinforces the silica-polymer network in tire treads and technical rubber goods
- Coatings and adhesives: primer for glass, metal, and mineral surfaces, increasing wet adhesion and durability
- Fiberglass and composites: sizing component that strengthens the fiber-resin interface for structural parts in automotive and aerospace assemblies
- Electronics: surface treatment on substrates where strong, moisture-resistant bonding is required, effective between inorganic surfaces and encapsulants or underfill resins
- It bonds inorganic substrates to organic polymer matrices, improving adhesion and mechanical performance at the interface.
Commercial specifications
- Packaging from drums to intermediate bulk containers
- Purity specifications and lot documentation for traceability
Other Names (Synonyms)
6H96M8992G|DYNASYLAN 1124|1-Propanamine, 3-(trimethoxysilyl)-N-[3-(trimethoxysilyl)propyl]-|SILQUEST A-1170|J278.704K|3-(Trimethoxysilyl)-N-(3-(trimethoxysilyl)propyl)propan-1-amine|3-(Trimethoxysilyl)-N-[3-(trimethoxysilyl)propyl]-1-propanamine
What are the physical properties of Bis(trimethoxysilylpropyl)amine?
Melting Point <0°C
Boiling Point 152 °C @ Press: 4 Torr
Density 1.040 g/cm³
Flash Point >230 °F
Color Colorless to Light yellow to Light orange
Form clear liquid
Water Solubility 34-1000g/L at 20℃
Vapor Pressure 0-12790Pa at 20-25℃
Refractive Index n 20/D 1.432(lit.)
Log P -4-0.2 at 20℃
How is Bis(trimethoxysilylpropyl)amine classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS09· Environmental Hazard GHS07· Irritant
Hazard Statements
H315 Causes skin irritation
H318 Causes serious eye damage
H332 Harmful if inhaled
H335 May cause respiratory irritation
H411 Toxic to aquatic life with long lasting effects
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
Which trade and regulatory codes apply to Bis(trimethoxysilylpropyl)amine?
HS Code 29319090
UN Number 3082
ADR Class 9
Packing Group III
WGK (Germany) 3