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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:
77-78-1
Molecular Weight:
126.13
NACRES:
NA.21
PubChem Substance ID:
57654074
UNSPSC Code:
12352100
EC Number:
201-058-1
MDL number:
MFCD00008416
Beilstein/REAXYS Number:
635994
Assay:
≥99.5%
Form:
liquid
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Product Name

Dimethyl sulfate, ≥99.5%

vapor density

4.3 (vs air)

Quality Level

200

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

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18 L in Kilo-Lab® packaging not available in all areas.
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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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

77-78-1

CAS No.

77-78-1

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
57996HJ
10997TJ
1419808
29296TJ
04996PJ

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A new method for sequencing DNA.
Maxam AM and Gilbert W.
Proceedings of the National Academy of Sciences of the USA, 74(2), 560-564 (1977)
DMF-dimethyl sulfate as a new reagent for the synthesis of β-lactams.
Jarrahpour A and Zarei M.
Tetrahedron Letters, 50(14), 1568-1570 (2009)
Methylation of alcohols, phenols, and carboxylic acids, and selective monomethylation of diols and dicarboxylic acids with dimethyl sulfate by use of alumina.
Ogawa H, et al.
Bulletin of the Chemical Society of Japan, 59(8), 2481-2483 (1986)
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Global Trade Item Number

SKUGTIN
D186309-18L-C04061837550317
D186309-4X100ML04061837550362
D186309-500ML04061833560969
D186309-100ML04061833560938
D186309-18L04061837550300
D186309-18L-KL04061833560945
D186309-1L04061833560952
D186309-25ML04061837550348
D186309-5ML04061833560976