N-Methylaminopropyltrimethoxysilane
Synonym(s):[3-(Methylamino)propyl]trimethoxysilane;N-Methyl-3-(trimethoxysilyl)propylamine
- CAS NO.：3069-25-8
- Empirical Formula: C7H19NO3Si
- Molecular Weight: 193.32
- MDL number: MFCD00048021
- EINECS: 221-334-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:16:51
What is N-Methylaminopropyltrimethoxysilane?
The Uses of N-Methylaminopropyltrimethoxysilane
(3-Methylaminopropyl)trimethoxysilane is used as coupling agent, adhesion promoters
General Description
Trimethoxy[3-(methylamino)propyl]silane (MAPTMS) is an aminoalkyltrimethoxysilane that can be used for silanization surface immobilization.
Properties of N-Methylaminopropyltrimethoxysilane
| Boiling point: | 106 °C(lit.) |
| Density | 0.975 g/mL at 25 °C(lit.) |
| vapor pressure | 0-12790Pa at 20-25℃ |
| refractive index | n |
| Flash point: | 180 °F |
| storage temp. | Inert atmosphere,Room Temperature |
| form | liquid |
| pka | 10.75±0.10(Predicted) |
| color | Colorless to Light yellow |
| Specific Gravity | 0.978 |
| Water Solubility | Hydrolyzes in water. |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 2072720 |
| CAS DataBase Reference | 3069-25-8(CAS DataBase Reference) |
| NIST Chemistry Reference | N-Methyl-3-aminopropyltrimethoxysilane(3069-25-8) |
| EPA Substance Registry System | 1-Propanamine, N-methyl-3-(trimethoxysilyl)- (3069-25-8) |
Safety information for N-Methylaminopropyltrimethoxysilane
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H318:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for N-Methylaminopropyltrimethoxysilane
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