Dimethyl sulfate

Name: Dimethyl sulfate
Brand: SIAL

≥99.0% (GC), liquid, puriss. p.a.

Synonym(s):

Sulfuric acid dimethyl ester

Slide 1 of 1

Sign Into View Organizational & Contract Pricing

About This Item

Linear Formula:

(CH₃O)₂SO₂

CAS Number:

77-78-1

Molecular Weight:

126.13

Beilstein/REAXYS Number:

635994

EC Number:

201-058-1

MDL number:

MFCD00008416

UNSPSC Code:

12352100

PubChem Substance ID:

57650074

NACRES:

NA.21

Key Documents

View All Documentation

Product Name

Dimethyl sulfate, puriss. p.a., ≥99.0% (GC)

vapor density

4.3 (vs air)

Quality Level

200

vapor pressure

0.7 mmHg ( 25 °C)

grade

puriss. p.a.

assay

≥99.0% (GC)

form

liquid

autoignition temp.

923 °F

impurities

≤0.4% free acid (as H₂SO₄)

ign. residue

≤0.02%

refractive index

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

bp

188 °C (lit.)

mp

−32 °C (lit.)

solubility

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

density

1.333 g/mL at 25 °C (lit.)

cation traces

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

SMILES string

COS(=O)(=O)OC

InChI

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

InChI key

VAYGXNSJCAHWJZ-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item	D186309	803071	320293
41610 Dimethyl sulfate	D186309 Dimethyl sulfate	803071 Dimethyl sulfate	320293 Dimethyl sulfate
assay ≥99.0% (GC)	assay ≥99.5%	assay ≥99% (GC)	assay ≥99%
Quality Level 200	Quality Level 200	Quality Level -	Quality Level 200
solubility ethanol: 0.26 g/mL, clear, colorless, diethyl ether: 1.3 g/5mL, clear, colorless	solubility -	solubility 28 g/L (Hydrolysis)	solubility -
refractive index n20/D 1.386 (lit.), n20/D 1.387	refractive index n20/D 1.386 (lit.)	refractive index -	refractive index n20/D 1.386 (lit.)
density 1.333 g/mL at 25 °C (lit.)	density 1.333 g/mL at 25 °C (lit.)	density 1.33 g/cm³ at 20 °C	density 1.333 g/mL at 25 °C (lit.)
bp 188 °C (lit.)	bp 188 °C (lit.)	bp 188.5 °C/1013 hPa (decomposition)	bp 188 °C (lit.)

General description

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.[1]

pictograms

GHS06,GHS08,GHS05

signalword

Danger

hcodes

H301,H314,H317,H330,H341,H350

pcodes

P202 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338

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_germany

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Questions

Reviews

No rating value

Active Filters

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service