D186309
Dimethyl sulfate
≥99.5%, liquid
Synonym(s):
Sulfuric acid dimethyl ester
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About This Item
Linear Formula:
(CH3O)2SO2
CAS Number:
Molecular Weight:
126.13
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
201-058-1
MDL number:
Beilstein/REAXYS Number:
635994
Assay:
≥99.5%
Form:
liquid
Product Name
Dimethyl sulfate, ≥99.5%
vapor density
4.3 (vs air)
Quality Segment
vapor pressure
0.7 mmHg ( 25 °C)
assay
≥99.5%
form
liquid
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.
Packaging
View returnable container options.
18 L in Kilo-Lab® packaging not available in all areas.
18 L in Kilo-Lab® packaging not available in all areas.
Legal Information
Kilo-Lab is a registered trademark of Merck KGaA, Darmstadt, Germany
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Danger
Hazard Classifications
Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1
Storage Class
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
181.4 °F - closed cup
flash_point_c
83 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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