N,N-Dimethyltrimethylsilylamine
Synonym(s):(Dimethylamino)trimethylsilane;N-(Trimethylsilyl)dimethylamine;TMSDMA
- CAS NO.：2083-91-2
- Empirical Formula: C5H15NSi
- Molecular Weight: 117.26
- MDL number: MFCD00008297
- EINECS: 218-222-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:14:13
What is N,N-Dimethyltrimethylsilylamine?
Chemical properties
clear colorless to pale yellow liquid
The Uses of N,N-Dimethyltrimethylsilylamine
N,N-Dimethyltrimethylsilylamine was used in the synthesis of phosphoramidite. It was also employed as a reagent in the preparation of iminium salts and amides as well as for the silylation of polymers. A combination of N-(trimethylsilyl)dimethylamine and MeI was also effective to give p-methylbenzoic acid with a 85% yield based on 90% conversion from the corresponding Me ester. DETA has been treated with N-(trimethylsilyl)-dimethylamine to yield mono-, di- and tri- silylated derivatives
Properties of N,N-Dimethyltrimethylsilylamine
| Melting point: | <0°C |
| Boiling point: | 84 °C (lit.) |
| Density | 0.732 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | −3 °F |
| storage temp. | Flammables area |
| form | clear liquid |
| pka | 10.77±0.70(Predicted) |
| Specific Gravity | 0.74 |
| color | Colorless to Light yellow |
| Water Solubility | Decomposition |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 1731861 |
| CAS DataBase Reference | 2083-91-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Dimethylamino(trimethyl)silane(2083-91-2) |
| EPA Substance Registry System | Silanamine, pentamethyl- (2083-91-2) |
Safety information for N,N-Dimethyltrimethylsilylamine
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H225:Flammable liquids H260:Substances And Mixtures Which, In Contact With Water,Emit Flammable Gases H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P223:Keep away from any possible contact with water, because of violent reaction and possible flash fire. P280:Wear protective gloves/protective clothing/eye protection/face protection. P231+P232:Handle under inert gas. Protect from moisture. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. 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,N-Dimethyltrimethylsilylamine
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