Dichlorodimethylsilane
ALDRICH/40140 - ≥98.5% (GC)
Synonym: DMDCS; Dimethyldichlorosilane
CAS Number: 75-78-5
Empirical Formula (Hill Notation): C2H6Cl2Si
Molecular Weight: 129.06
EC Number: 200-901-0
MDL Number: MFCD00000491
Linear Formula: (CH3)2SiCl2
Product Type: Chemical
| assay | ≥98.5% (GC) |
| bp | 70 °C (lit.) |
| density | 1.07 g/mL at 25 °C (lit.) |
| form | liquid |
| InChI | 1S/C2H6Cl2Si/c1-5(2,3)4/h |
| InChI key | LIKFHECYJZWXFJ-UHFFFAOYSA |
| mp | −76 °C (lit.) |
| refractive index | n |
| SMILES string | C[Si](C)(Cl)Cl |
| Application: | Dichlorodimethylsilane (DDMS) can be used as a silylating agent for the silylation of Pd/SiO2 catalysts to enhance the catalytic activity for the selective hydrogenation of aromatic ketones. It is also employed as a reagent in the synthesis of hydrophilic and hydrophobic silica nanoparticles and amides from unprotected amino acids. |
| Other Notes: | Silylating agent for diols, diamines, etc.; the protection is very sensitive to hydrolysis |
| Packaging: | 25, 100, 500 mL in glass bottle |
| Symbol |    GHS02,GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H225 - H302 - H314 - H331 - H335 |
| Precautionary statements | P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | F,C |
| Risk Statements | 11-14-20/22-35-37 |
| Safety Statements | 7/9-16-26-36/37/39-45 |
| RIDADR | UN1162 - class 3 - PG 2 - Dimethyldichlorosilane |
| WGK Germany | WGK 1 |
| Flash Point(F) | 33.8 °F - closed cup |
| Flash Point(C) | 1 °C - closed cup |
| Purity | ≥98.5% (GC) |
| bp | 70 °C (lit.) |
| mp | −76 °C (lit.) |
| Density | 1.07 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352103 |