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Merck

01934

Dimethyl sulfoxide

for inorganic trace analysis, ≥99.99995% (metals basis)

Synonym(s):

DMSO

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About This Item

Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
UNSPSC Code:
41116105
NACRES:
NA.24
PubChem Substance ID:
EC Number:
200-664-3
Beilstein/REAXYS Number:
506008
MDL number:
Assay:
≥99.9% (GC), ≥99.99995% (metals basis)
Bp:
189 °C
Vapor pressure:
0.42 mmHg ( 20 °C), 0.42 mmHg
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Quality Level

vapor density

2.7 (vs air)

vapor pressure

0.42 mmHg ( 20 °C), 0.42 mmHg

assay

≥99.9% (GC), ≥99.99995% (metals basis)

form

liquid

autoignition temp.

573 °F

expl. lim.

42 %, 63 °F, 42 %

dilution

(for analytical testing)

color

colorless

refractive index

n20/D 1.479 (lit.)

bp

189 °C

mp

16-19 °C

solubility

H2O: miscible (completely)

density

1.099-1.101 g/mL at 20 °C, 1.10 g/mL (lit.)

SMILES string

CS(C)=O

cation traces

Ag: ≤0.5 μg/kg, Al: ≤1 μg/kg, As: ≤0.01 mg/kg, Au: ≤0.5 μg/kg, Be: ≤0.5 μg/kg, Bi: ≤0.5 μg/kg, Ca: ≤20 μg/kg, Cd: ≤0.5 μg/kg, Ce: ≤0.5 μg/kg, Co: ≤0.5 μg/kg, Cr: ≤5 μg/kg, Cs: ≤0.5 μg/kg, Cu: ≤5 μg/kg, Fe: ≤20 μg/kg, Ga: ≤0.5 μg/kg, Ge: ≤0.5 μg/kg, Hg: ≤5 μg/kg, In: ≤10 μg/kg, Ir: ≤0.5 μg/kg, K: ≤10 μg/kg, Li: ≤0.5 μg/kg, Mg: ≤10 μg/kg, Mn: ≤5 μg/kg, Mo: ≤0.5 μg/kg, Na: ≤50 μg/kg, Ni: ≤5 μg/kg, Os: ≤1 μg/kg, Pb: ≤0.5 μg/kg, Pd: ≤0.5 μg/kg, Pt: ≤0.5 μg/kg, Rb: ≤0.5 μg/kg, Rh: ≤0.5 μg/kg, Ru: ≤0.5 μg/kg, Sb: ≤0.5 μg/kg, Se: ≤0.01 mg/kg, Sn: ≤0.5 μg/kg, Sr: ≤0.5 μg/kg, Ti: ≤5 μg/kg, Tl: ≤0.5 μg/kg, U: ≤0.5 μg/kg, V: ≤0.5 μg/kg, Zn: ≤5 μg/kg, Zr: ≤0.5 μg/kg

application(s)

sample preparation

InChI

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

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

Application


  • Enzymatic/chemical analysis of dietary fiber.: Focused on the analytical techniques for analyzing dietary fibers, which could be adapted for the analysis of complex organic matrices in the presence of DMSO ( Theander et al., 1994).

  • Levans: I. Fractionation, solution viscosity, and chemical analysis of levan produced by Streptococcus salivarius.: This research details the fractionation and analysis of bacterial levan, which could inform studies involving the solubilization and analysis of similar polysaccharides in DMSO ( Ehrlich et al., 1975).

Other Notes

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

Disclaimer

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


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Storage Class

10 - Combustible liquids

wgk

WGK 1

flash_point_f

188.6 °F - closed cup

flash_point_c

87 °C - closed cup



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