Amines
REACH
3-(trimethoxysilylpropyl)diethylenetriamine
CAS Number
35141-30-1
EC Number
252-390-9
What is 3-(trimethoxysilylpropyl)diethylenetriamine?
3-(Trimethoxysilylpropyl)diethylenetriamine (CAS 35141-30-1) is an aminosilane coupling agent that bridges inorganic substrates and organic polymer matrices. Also marketed as Dynasylan TRIAMO.
Where is 3-(trimethoxysilylpropyl)diethylenetriamine used?
- Adhesives, sealants and epoxy systems: improves adhesion to glass, metals and mineral fillers by chemically linking substrate to polymer network
- Electronics: surface primer on circuit board laminates and encapsulant interfaces for moisture resistance and bond durability
- Coatings for automotive and aerospace components: adhesion promoter on metal and composite surfaces, reducing delamination under thermal cycling
- Plastics compounding: coupling agent for glass fiber-reinforced systems, improving mechanical strength retention
- Its multiple amine groups enable surface bonding and cross-linking within a single molecule.
Good to know: Multiple amine groups provide surface bonding and cross-linking in one molecule, where standard monoamine silanes fall short.
Commercial specifications
- Technical grade, purity commonly specified at 95% or higher
- Packaging from small laboratory quantities to drums and IBCs
Other Names (Synonyms)
Dynasylan TRIAMO|1,2-Ethanediamine, N-(2-aminoethyl)-N'-[3-(trimethoxysilyl)propyl]-|3W3E2D4706|3-(2-(2-Aminoethyl)ethylamino)propyltrimethoxysilane|J289.914K|N-(2-aminoethyl)-N'-(3-(trimethoxysilyl)propyl)ethane-1,2-diamine|1,2-Ethanediamine, N1-(2-aminoethyl)-N2-[3-(trimethoxysilyl)propyl]-
What are the physical properties of 3-(trimethoxysilylpropyl)diethylenetriamine?
Boiling Point 114-118 °C/2 mmHg (lit.)
Density 1.03 g/mL at 25 °C(lit.)
Flash Point 257 °F
Appearance Clear, light to dark yellow liquid
Color Clear yellow
Odor Amine-like odor
Form Liquid
Water Solubility 1000g/L at 20℃
Vapor Pressure 1 mm Hg ( 20 °C)
Refractive Index n 20/D 1.459(lit.)
Log P -3.9--0.74 at 20℃
How is 3-(trimethoxysilylpropyl)diethylenetriamine classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant GHS09· Environmental Hazard
Which trade and regulatory codes apply to 3-(trimethoxysilylpropyl)diethylenetriamine?
HS Code 29319090
UN Number 2735
ADR Class 8
Packing Group III
Storage Class 10 - Combustible liquids
WGK (Germany) 1