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34943

Sigma-Aldrich

Dimethyl sulfoxide

puriss. p.a., dried, ≤0.02% water

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Synonym(s):
DMSO
Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
Beilstein/REAXYS Number:
506008
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor density

2.7 (vs air)

Quality Level

vapor pressure

0.42 mmHg ( 20 °C)

grade

puriss. p.a.

assay

≥99.9% (GC)

form

liquid

autoignition temp.

573 °F

quality

dried

expl. lim.

42 %, 63 °F

impurities

≤0.0001% heavy metals (as Pb)
≤0.001% free acid (as H2SO4)
≤0.002% non-volatile matter
≤0.02% water
≤0.03% water (Karl Fischer)

refractive index

n20/D 1.479 (lit.)

bp

189 °C (lit.)

mp

16-19 °C (lit.)

density

1.10 g/mL (lit.)

cation traces

Fe: ≤1 mg/kg

SMILES string

CS(C)=O

InChI

1S/C2H6OS/c1-4(2)3/h1-2H3

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

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1 of 4

This Item
4164041639D5879
vibrant-m

34943

Dimethyl sulfoxide

-
vibrant-m

41640

Dimethyl sulfoxide

Essential Grade
vibrant-m

41639

Dimethyl sulfoxide

Premium Grade
vibrant-m

D5879

Dimethyl sulfoxide

-
grade

puriss. p.a.

grade

-

grade

-

grade

-

Quality Level

100

Quality Level

300

Quality Level

200

Quality Level

200

mp

16-19 °C (lit.)

mp

16-19 °C (lit.), 18-20 °C

mp

16-19 °C (lit.)

mp

16-19 °C (lit.)

impurities

≤0.0001% heavy metals (as Pb), ≤0.002% non-volatile matter, ≤0.03% water (Karl Fischer), ≤0.001% free acid (as H2SO4), ≤0.02% water

impurities

≤0.001% free acid (as CH3COOH), ≤0.1% water

impurities

Dnases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected, ≤0.001% free acid (as CH3COOH)

impurities

≤0.1% water (Karl Fischer)

refractive index

n20/D 1.479 (lit.)

refractive index

n20/D 1.479 (lit.)

refractive index

n20/D 1.479 (lit.)

refractive index

n20/D 1.479 (lit.)

General description

Dimethyl sulfoxide (DMSO) is a polar solvent. DMSO activated by various electrophiles (oxalyl chloride) has been used to oxidize various alcohols (primary, secondary, allylic, benzylic, hindered and bicyclic). Carbonyl compounds are formed as reaction products. It has been proposed as an alternate solvent for methyl cellosolve for use in ninhydrin reaction, due to its high stability.

Application

Dimethyl sulfoxide (DMSO) has been used as a solvent in the high-throughput compound screening studies conducted on Mtb (Mycobacterium tuberculosis) H37Rv host cells.

Caution

Supercools easily and remelts slowly at room temperature. Solidified product can be re-liquified by warming to room temperature without detriment to the product.

Other Notes

For information on dimethyl sulfoxide miscibility, please visit the following link:
Dimethyl Sulfoxide Miscibility/Immiscibility Table

Storage Class

10 - Combustible liquids

wgk_germany

WGK 1

flash_point_f

188.6 °F - closed cup

flash_point_c

87 °C - closed cup


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Christophe J Queval et al.
Journal of visualized experiments : JoVE, (83)(83), e51114-e51114 (2014-01-30)
Despite the availability of therapy and vaccine, tuberculosis (TB) remains one of the most deadly and widespread bacterial infections in the world. Since several decades, the sudden burst of multi- and extensively-drug resistant strains is a serious threat for the
Oxidation of alcohols by ?activated? dimethyl sulfoxide. A preparative, steric and mechanistic study.
Omura K and Swern D.
Tetrahedron, 34(11), 1651-1660 (1978)
A RAPID PERMETHYLATION OF GLYCOLIPID, AND POLYSACCHARIDE CATALYZED BY METHYLSULFINYL CARBANION IN DIMETHYL SULFOXIDE.
S HAKOMORI
Journal of biochemistry, 55, 205-208 (1964-02-01)
Amino acid analysis: aqueous dimethyl sulfoxide as solvent for the ninhydrin reaction.
S Moore
The Journal of biological chemistry, 243(23), 6281-6283 (1968-12-10)
Phillip McDonagh et al.
Veterinary microbiology, 174(3-4), 438-447 (2014-12-04)
Feline infectious peritonitis (FIP), a feline coronavirus (FCoV) induced disease, is almost invariably fatal with median life expectancy measured in days. Current treatment options are, at best, palliative. The objectives of this study were to evaluate a panel of nineteen

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