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34943

Sigma-Aldrich

Dimethyl sulfoxide

puriss. p.a., dried, ≤0.02% water

Synonym(s):
DMSO
Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
Beilstein:
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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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.

Packaging

1, 6×1 L in glass bottle

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 Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

188.6 °F - closed cup

Flash Point(C)

87 °C - closed cup

Certificate of Analysis

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Certificate of Origin

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