(Methoxymethyl)trimethylsilane
Synonym(s):(Trimethylsilyl)methyl methyl ether
- CAS NO.：14704-14-4
- Empirical Formula: C5H14OSi
- Molecular Weight: 118.25
- MDL number: MFCD00009843
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:48:19
What is (Methoxymethyl)trimethylsilane?
Purification Methods
It forms an azeotrope with MeOH (b 60o). If it contains MeOH (check IR for bands above 3000cm-1), then wash with H2O and fractionate. A possible impurity could be chloromethyl trimethylsilane (b 97o/740mm). [Speier J Am Chem Soc 70 4142 1948, Beilstein 4 III 1844.] It is an IRRITATING FLAMMABLE liquid.
Properties of (Methoxymethyl)trimethylsilane
| Melting point: | <0°C |
| Boiling point: | 83 °C/740 mmHg (lit.) |
| Density | 0.758 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 8 °F |
| form | clear liquid |
| color | Colorless to Almost colorless |
| Specific Gravity | 0.755 |
| Hydrolytic Sensitivity | 1: no significant reaction with aqueous systems |
| BRN | 1732033 |
| CAS DataBase Reference | 14704-14-4(CAS DataBase Reference) |
| NIST Chemistry Reference | (Methoxymethyl)trimethylsilane(14704-14-4) |
Safety information for (Methoxymethyl)trimethylsilane
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H225:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| 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. 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 (Methoxymethyl)trimethylsilane
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