Isobutyltrimethoxysilane
- CAS NO.：18395-30-7
- Empirical Formula: C7H18O3Si
- Molecular Weight: 178.3
- MDL number: MFCD00051589
- EINECS: 242-272-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 06:15:25
What is Isobutyltrimethoxysilane?
Chemical properties
Colorless clear liquid.
The Uses of Isobutyltrimethoxysilane
Isobutyl(trimethoxy)silane-modified substrates were used for the preparation of gold films by absorption and adsorption.{87} It may be used as silane precursors for the synthesis of xerogels.{88}
Flammability and Explosibility
Flammable
Properties of Isobutyltrimethoxysilane
| Melting point: | <0°C |
| Boiling point: | 154 °C(lit.) |
| Density | 0.93 g/mL at 25 °C(lit.) |
| vapor pressure | 1.9hPa at 25℃ |
| refractive index | n |
| Flash point: | 103 °F |
| storage temp. | 2-8°C |
| form | solution |
| Specific Gravity | 0.933 |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| Sensitive | Moisture Sensitive |
| BRN | 2233976 |
| CAS DataBase Reference | 18395-30-7(CAS DataBase Reference) |
| NIST Chemistry Reference | Prosil 178(18395-30-7) |
| EPA Substance Registry System | Silane, trimethoxy(2-methylpropyl)- (18395-30-7) |
Safety information for Isobutyltrimethoxysilane
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H315:Skin corrosion/irritation H336:Specific target organ toxicity,single exposure; Narcotic effects |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P302+P352:IF ON SKIN: wash with plenty of soap and water. |
Computed Descriptors for Isobutyltrimethoxysilane
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