Dimethyl sulfite CAS 616-42-2
Introduction：Basic information about Dimethyl sulfite CAS 616-42-2, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Dimethyl sulfite Basic information
| Product Name: | Dimethyl sulfite |
| Synonyms: | SULFUROUS ACID DIMETHYL ESTER;DIMETHYL SULFITE;METHYL SULFITE;(CH3O)2SO;Dimethoxy sulfoxide;dimethoxysulfoxide;Dimethyl ester of sulfurous acid;Dimethyl sulphite |
| CAS: | 616-42-2 |
| MF: | C2H6O3S |
| MW: | 110.13 |
| EINECS: | 210-481-0 |
| Product Categories: | pharmaceutical;Organics |
| Mol File: | 616-42-2.mol |
Dimethyl sulfite Chemical Properties
| Melting point | 0°C |
| Boiling point | 126-127 °C (lit.) |
| density | 1.294 g/mL at 25 °C (lit.) |
| refractive index | n |
| Fp | 106 °F |
| storage temp. | Flammables area |
| form | Liquid |
| color | Clear colorless to pale yellow |
| Water Solubility | soluble |
| BRN | 1700256 |
| Dielectric constant | 22.5（23℃） |
| InChI | InChI=1S/C2H6O3S/c1-4-6(3)5-2/h1-2H3 |
| InChIKey | BDUPRNVPXOHWIL-UHFFFAOYSA-N |
| SMILES | S(OC)(OC)=O |
| CAS DataBase Reference | 616-42-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Sulfurous acid, dimethyl ester(616-42-2) |
| EPA Substance Registry System | Sulfurous acid, dimethyl ester (616-42-2) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 10-36/37/38 |
| Safety Statements | 26-36-24/25-16 |
| RIDADR | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| RTECS | WT3512000 |
| TSCA | TSCA listed |
| HazardClass | 3.2 |
| PackingGroup | III |
| HS Code | 29209085 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Eye Irrit. 2 Flam. Liq. 3 Skin Irrit. 2 STOT SE 3 |
| Chemical Properties | CLEAR COLORLESS TO PALE YELLOW LIQUID |
| Uses | The conformations and vibrational spectra of dimethyl sulfite was studied by matrix-isolation fourier transform infrared spectroscopy and to study its conformational selective aggregation. It may be used in organic synthesis. |
| Preparation | Dimethyl sulfite is prepared from a 1:2 ratio of thionyl chloride and methanol. The reaction can be catalyzed by tertiary amine bases and likely proceeds via the chlorosulfinate (MeOS(O)Cl), this intermediate will exist only fleetingly in the presence of methanol and as such its decomposition to methyl chloride and sulfur dioxide (via the slower SNi mechanism) is not observed to any great extent. SOCl2 + 2 CH3OH → (CH3O)2SO + 2 HCl |
| Application | The conformations and vibrational spectra of dimethyl sulfite was studied by matrix-isolation fourier transform infrared spectroscopy and to study its conformational selective aggregation. Dimethyl sulfite may be used in organic synthesis. It is used as an additive in some polymers to prevent oxidation. It is also a potentially useful high energy battery electrolyte solvent. |
| Definition | ChEBI: Dimethyl sulfite is a sulfite ester. |
| General Description | Dimethyl sulfite is an insect repellent and also experimentally identified as a mutagenic agent. |
Dimethyl sulfite Preparation Products And Raw materials
| Preparation Products | Methanesulfonic acid, 1-(dimethylamino)--->P-ANISALDEHYDE DIMETHYL ACETAL-->Methyl chlorosulfonate-->METHYL FLUOROSULFONATE-->4-BROMO-2-METHYLTHIAZOLE-->4-Bromophenyl methyl sulfone-->Chloromethane-->TETRABUTYLAMMONIUM METHANESULFONATE-->1-ETHYL-3-METHYLIMIDAZOLIUM METHANESULFONATE |
