Chlorotrimethylsilane
ALDRICH/92361 - ≥98.0% (GC)
Synonym: TMCS; Trimethylchlorosilane; Trimethylsilyl chloride
CAS Number: 75-77-4
Empirical Formula (Hill Notation): C3H9ClSi
Molecular Weight: 108.64
EC Number: 200-900-5
MDL Number: MFCD00000502
Linear Formula: (CH3)3SiCl
Product Type: Chemical
| assay | ≥98.0% (GC) |
| autoignition temp. | 752 °F |
| bp | 57 °C (lit.) |
| density | 0.856 g/mL at 25 °C (lit.) |
| expl. lim. | 6.4 % |
| form | liquid |
| InChI | 1S/C3H9ClSi/c1-5(2,3)4/h1 |
| InChI key | IJOOHPMOJXWVHK-UHFFFAOYSA |
| mp | −40 °C (lit.) |
| refractive index | n |
| SMILES string | C[Si](C)(C)Cl |
| vapor density | 3.7 (vs air) |
| vapor pressure | 100 mmHg ( 25 °C) |
| Application: | Chlorotrimethylsilane has been used to silanize glass surface to make them more hydrophobic. It can be used in combination with hexamethyldisilazane for the protection of alcohols by forming trimethylsilyl ethers via silylation reaction. Also used in Fisher Glycosylation |
| General description: | Chlorotrimethylsilane is a chloro-organosilane compound mainly used for silylation reactions. |
| Packaging: | 1 L in glass bottle |
| Packaging: | 100, 500 mL in glass bottle |
| Symbol |    GHS02,GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H225 - H301 + H331 - H312 - H314 |
| Precautionary statements | P210 - P280 - P301 + P310 + P330 - P301 + P330 + P331 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | F,C |
| Risk Statements | 11-14-20/21/22-35-37 |
| Safety Statements | 7/9-16-26-36/37/39-45 |
| RIDADR | UN1298 - class 3 - PG 2 - Trimethylchlorosilane |
| WGK Germany | WGK 1 |
| Flash Point(F) | -18.4 °F - closed cup |
| Flash Point(C) | -28 °C - closed cup |
| Supplemental Hazard Statements | EUH014 |
| Purity | ≥98.0% (GC) |
| bp | 57 °C (lit.) |
| mp | −40 °C (lit.) |
| Density | 0.856 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352302 |