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41610

Sigma-Aldrich

Dimethyl sulfate

puriss. p.a., ≥99.0% (GC)

Synonyme(s) :

Sulfuric acid dimethyl ester

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About This Item

Formule linéaire :
(CH3O)2SO2
Numéro CAS:
Poids moléculaire :
126.13
Numéro Beilstein :
635994
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352100
ID de substance PubChem :
Nomenclature NACRES :
NA.21

Densité de vapeur

4.3 (vs air)

Niveau de qualité

Pression de vapeur

0.7 mmHg ( 25 °C)

Qualité

puriss. p.a.

Pureté

≥99.0% (GC)

Forme

liquid

Température d'inflammation spontanée

923 °F

Impuretés

≤0.4% free acid (as H2SO4)

Résidus de calcination

≤0.02%

Indice de réfraction

n20/D 1.386 (lit.)
n20/D 1.387

Point d'ébullition

188 °C (lit.)

Pf

−32 °C (lit.)

Solubilité

ethanol: 0.26 g/mL, clear, colorless
diethyl ether: 1.3 g/5mL, clear, colorless

Densité

1.333 g/mL at 25 °C (lit.)

Traces de cations

Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤20 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Na: ≤20 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Zn: ≤1 mg/kg

Chaîne SMILES 

COS(=O)(=O)OC

InChI

1S/C2H6O4S/c1-5-7(3,4)6-2/h1-2H3

Clé InChI

VAYGXNSJCAHWJZ-UHFFFAOYSA-N

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Description générale

Dimethyl sulfate is the dimethyl ester of sulfuric acid. It undergoes hydrolysis to afford monomethyl sulfate. It is found as contaminant in fly ash and in airborne particulate matter generated during the coal combustion processes.

Pictogrammes

Skull and crossbonesHealth hazardCorrosion

Mention d'avertissement

Danger

Classification des risques

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1

Code de la classe de stockage

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

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

181.4 °F - closed cup

Point d'éclair (°C)

83 °C - closed cup

Équipement de protection individuelle

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


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Consulter la Bibliothèque de documents

M L Lee et al.
Science (New York, N.Y.), 207(4427), 186-188 (1980-01-11)
Dimethyl sulfate and its hydrolysis product monomethyl sulfate have been found at concentrations as high as 830 parts per million in fly ash and in airborne particulate matter from coal combustion processes. This discovery poses a new environmental problem because
J D McGhee et al.
Proceedings of the National Academy of Sciences of the United States of America, 76(5), 2133-2137 (1979-05-01)
We have measured the effect of the histones in the nucleosome core particle on methylation of purines in nucleosome DNA by dimethyl sulfate. By using 32P terminally labeled nucleosome cores, we have examined the pattern of strand cleavage at methylated
Pasquale Moio et al.
Proteomics, 11(2), 249-260 (2011-01-05)
Protein footprinting is a new methodology that is based on probing, typically with the use of MS, of reactivity of different amino acid residues to a modifying reagent. Data thus obtained allow one to make inferences about protein conformations and
Ke-wei Zheng et al.
Nucleic acids research, 38(1), 327-338 (2009-10-28)
Large numbers of guanine-rich sequences with potential to form G-quadruplexes have been identified in genomes of various organisms. Such sequences are constrained at both ends by long DNA duplex with a complementary strand in close proximity to compete for duplex
Silvi Rouskin et al.
Nature, 505(7485), 701-705 (2013-12-18)
RNA has a dual role as an informational molecule and a direct effector of biological tasks. The latter function is enabled by RNA's ability to adopt complex secondary and tertiary folds and thus has motivated extensive computational and experimental efforts

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