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(trimethoxysilylpropyl)ethylenediamine

CAS Number
1760-24-3
EC Number
217-164-6
Chemical Formula
C8H22N2O3Si
Molecular Weight
222.36 g/mol

Description

N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane (CAS 1760-24-3 ), commercially known as DAMO, is a bifunctional aminosilane coupling agent carrying both a trimethoxysilyl group and a diamine functionality. It bridges organic polymer matrices and inorganic substrates, improving adhesion, crosslink density, and surface compatibility across demanding industrial applications. In adhesives, sealants, and epoxy systems, it acts as a curing agent. DAMO serves as a coupling promoter, strengthening bonds between polymer resins and glass, metal, or mineral fillers. The electronics industry uses it as a surface primer for printed circuit boards and encapsulants. Reliable adhesion under thermal cycling is critical in these applications. In coatings and composite manufacturing, it modifies fiber and filler surfaces to improve wet-out and mechanical performance of plastics. Glass fiber-reinforced plastics benefit significantly from this modification. Automotive sealants and structural adhesives rely on DAMO to maintain bond integrity at substrate interfaces exposed to moisture and temperature extremes. DAMO is supplied as a clear to slightly yellow liquid. Standard commercial grades are available at ≥97% purity for industrial and technical use, ensuring consistent performance across various manufacturing processes. Some suppliers offer higher-purity specifications for electronics and specialty coating applications. Packaging ranges from small drums to IBC containers to suit both development-scale and bulk procurement needs. Contact us for supply of (trimethoxysilylpropyl)ethylenediamine Request Quote

Other Names (Synonyms)

N'-(3-trimethoxysilylpropyl)ethane-1,2-diamine | n-(2-aminoethyl)-3-aminopropyltrimethoxysilane | DAMO

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point0°C
Boiling Point140 °C @ Press: 15 Torr
Density1.010 g/cm³ @ Temp: 25 °C
Flash Point220 °F
AppearanceColorless transparent liquid
ColorClear colorless to light yellow
FormLiquid
Water SolubilityREACTS
Vapor Pressure1.5 hPa (20 °C)
Refractive Indexn 20/D 1.444(lit.)
pH10 (10g/l, H2O, 20℃)
Log P-4--0.82 at 20℃

Safety & Handling

Danger
GHS05· CorrosiveGHS07· IrritantGHS08· Health Hazard

Hazard Statements

H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H318Causes serious eye damage
H332Harmful if inhaled
H373May causes damage to organs through prolonged or repeated exposure
H412Harmful to aquatic life with long lasting effects

Precautionary Statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P317Get emergency medical help.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29310095
UN Number3267
ADR Class8
Packing GroupII
Storage Class10 - Combustible liquids
WGK (Germany)3