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Merck
CN

D100706

Diethyl sulfate

98%

Synonym(s):

Ethyl sulfate, Sulfuric acid diethyl ester

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About This Item

Linear Formula:
(C2H5O)2SO2
CAS Number:
64-67-5
Molecular Weight:
154.18
UNSPSC Code:
12352108
NACRES:
NA.22
PubChem Substance ID:
24893316
EC Number:
200-589-6
Beilstein/REAXYS Number:
1209714
MDL number:
MFCD00009099

Key Documents

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Product Name

Diethyl sulfate, 98%

InChI

1S/C4H10O4S/c1-3-7-9(5,6)8-4-2/h3-4H2,1-2H3

InChI key

DENRZWYUOJLTMF-UHFFFAOYSA-N

SMILES string

CCOS(=O)(=O)OCC

vapor density

5.3 (vs air)

vapor pressure

<0.01 mmHg ( 20 °C)
2 mmHg ( 55 °C)

assay

98%

form

liquid

refractive index

n20/D 1.399 (lit.)

bp

208 °C (lit.)

mp

−24 °C (lit.)

density

1.177 g/mL at 25 °C (lit.)

Quality Level

200

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Application

Diethyl sulfate can be used as a reactant for the synthesis of:
  • Biologically active compounds such as bispyrazole, pyrazolopyrimidine and pyridine containing antipyrinyl moieties.
  • N-substituted-2-styryl-4(3H)-quinazolinones.
  • Ionic liquids with pyrrolidinium, piperidinium and morpholinium cations, having potential applications as electrolytes.

It can also be used as an alkylating agent to synthesize 1-alkyl/aralkyl-2-(1-arylsufonylalkyl)benzimidazoles and an ionic liquid ethylmethylimidazole ethylsulfate ([EMIM][EtSO4].

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Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 1B - Eye Dam. 1 - Muta. 1B - Skin Corr. 1B

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

219.2 °F - closed cup

flash_point_c

104 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCL6224
MKCL0098
MKCK4495
SHBK7341
SHBK5587

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Ionic liquids containing an alkyl sulfate group as potential electrolytes
Wu TY, et al.
Electrochimica Acta, 55(15), 4475-4482 (2010)
PEG-600-mediated, green and efficient, tandem syntheses of N-subtituted-2-styrylquinazolin-4-ones
Srinivasa RB, et al.
Green Chemistry Letters and Reviews, 6(3), 254-261 (2013)
Ionic liquid synthesis in a microstructured reactor for process intensification
Renken A, et al.
Chemical Engineering and Processing, 46(9), 840-845 (2007)
Synthesis, Antimicrobial Activity and Molecular Modeling of Some Novel 5-Aminopyrazole, Pyrazolo [1, 5-a] pyrimidine, Bispyrazole and Bispyridone Derivatives Containing Antipyrinyl Moiety
Helal MH, et al.
Journal of Heterocyclic Chemistry, 54(5), 2614-2626 (2017)
Flow chemistry: Imidazole-based ionic liquid syntheses in micro-scale
Lowe H, et al.
Chemical Engineering Journal, 163(3), 429-437 (2010)
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