Dimethyl sulfate
SIAL/D186309 - ≥99.5%
Synonym: Sulfuric acid dimethyl ester
CAS Number: 77-78-1
Empirical Formula (Hill Notation): C2H6O4S
Molecular Weight: 126.13
EC Number: 201-058-1
MDL Number: MFCD00008416
Linear Formula: (CH3O)2SO2
Product Type: Chemical
4×100 Pull-top Can
Photo is meant to be representative of product you will receive if ordered. Additional information is printed on actual labels and package types are subject to change.
Photo is meant to be representative of product you will receive if ordered. Additional information is printed on actual labels and package types are subject to change.
| assay | ≥99.5% |
| autoignition temp. | 923 °F |
| bp | 188 °C (lit.) |
| density | 1.333 g/mL at 25 °C (lit.) |
| form | liquid |
| InChI | 1S/C2H6O4S/c1-5-7(3,4)6-2 |
| InChI key | VAYGXNSJCAHWJZ-UHFFFAOYSA |
| mp | −32 °C (lit.) |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | COS(=O)(=O)OC |
| vapor density | 4.3 (vs air) |
| vapor pressure | 0.7 mmHg ( 25 °C) |
| Application: | Dimethyl sulfate may be used along with alumina for preparation of monomethylated derivatives of alcohols, phenols and carboxylic acids. It may also be used in combination with dimethylformamide (DMF) to form methoxy-methylene-N,N-dimethyliminium salt, that can be utilized for the preparation of β-lactams. |
| Legal Information: | Kilo-Lab is a registered trademark of Sigma-Aldrich Co. LLC |
| Packaging: | 1 L in Sure/Seal™ |
| Packaging: | 100, 4×100, 500 mL in Sure/Seal™ |
| Packaging: | 18 L in Kilo-Lab™ |
| Packaging: | 5 mL in glass bottle |
| Packaging: | View returnable container options . 18 L in Kilo-Lab® packaging not available in all areas. |
| Packaging: | View returnable container options . |
| Symbol |    GHS05,GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H301 - H314 - H317 - H330 - H341 - H350 |
| Precautionary statements | P201 - P202 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | T+ |
| Risk Statements | 45-25-26-34-43-68 |
| Safety Statements | 53-45-61 |
| RIDADR | UN1595 - class 6.1 - PG 1 - Dimethyl sulphate |
| WGK Germany | WGK 3 |
| Flash Point(F) | 181.4 °F - closed cup |
| Flash Point(C) | 83 °C - closed cup |
| Purity | ≥99.5% |
| bp | 188 °C (lit.) |
| mp | −32 °C (lit.) |
| Density | 1.333 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |