Description
Description
Dimethyl Sulfate ≥99.8% 1 Liter
Synonym: Sulfuric acid dimethyl ester
- CAS Number 77-78-1
- Linear Formula (CH3O)2SO2
- Molecular Weight 126.13
- Beilstein/REAXYS Number 635994
- EC Number 201-058-1
- MDL number MFCD00008416
- PubChem Substance ID 57654074
- NACRES NA.21
| Quality Level | 200 |
| vapor density | 4.3 (vs air) |
| vapor pressure | 0.7 mmHg ( 25 °C) |
| assay | ≥99.8% |
| autoignition temp. | 923 °F |
| refractive index | n20/D 1.386 (lit.) |
| bp | 188 °C (lit.) |
| mp | −32 °C (lit.) |
| density | 1.333 g/mL at 25 °C (lit.) |
| SMILES string | COS(=O)(=O)OC |
| InChI | 1S/C2H6O4S/c1-5-7(3,4)6-2/h1-2H3 |
| InChI key | VAYGXNSJCAHWJZ-UHFFFAOYSA-N |
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.
GHS05, GHS06, GHS08
Signal word Danger
Hazard statements H301-H314-H317-H330-H341-H350
Precautionary statements P201-P260-P280-P301 + P310 + P330-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338-P308 + P313-P403 + P233
Personal Protective Equipment Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
RIDADR UN1595 – class 6.1 – PG 1 – Dimethyl sulphate
WGK Germany 3
RTECS WS8225000
Flash Point(F) 181.4 °F
Flash Point(C) 83 °C
Documents
Safety Data Sheet
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