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Merck
CN

41640-M

Dimethyl sulfoxide

puriss. p.a., ACS reagent, ≥99.9% (GC)

Synonym(s):

DMSO

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About This Item

Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
UNSPSC Code:
12191502
NACRES:
NA.21
PubChem Substance ID:
EC Number:
200-664-3
Beilstein/REAXYS Number:
506008
MDL number:
Assay:
≥99.9% (GC)
Grade:
puriss. p.a., ACS reagent
Technique(s):
GC/GC: suitable
Bp:
189 °C (lit.)
Vapor pressure:
0.42 mmHg ( 20 °C)
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grade

puriss. p.a., ACS reagent

vapor density

2.7 (vs air)

vapor pressure

0.42 mmHg ( 20 °C)

assay

≥99.9% (GC)

form

liquid

autoignition temp.

573 °F

expl. lim.

42 %, 63 °F

technique(s)

GC/GC: suitable

impurities

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

evapn. residue

≤0.005%

refractive index

n20/D 1.479

bp

189 °C (lit.)

mp

16-19 °C (lit.), 18-20 °C

density

1.10 g/mL (lit.)

cation traces

Al: ≤0.5 mg/kg, Ba: ≤0.1 mg/kg, Bi: ≤0.1 mg/kg, Ca: ≤0.5 mg/kg, Cd: ≤0.05 mg/kg, Co: ≤0.02 mg/kg, Cr: ≤0.02 mg/kg, Cu: ≤0.02 mg/kg, Fe: ≤0.5 mg/kg, K: ≤0.5 mg/kg, Li: ≤0.1 mg/kg, Mg: ≤0.1 mg/kg, Mn: ≤0.02 mg/kg, Mo: ≤0.1 mg/kg, Na: ≤1 mg/kg, Ni: ≤0.5 mg/kg, Pb: ≤0.1 mg/kg, Sr: ≤0.1 mg/kg, Zn: ≤0.1 mg/kg

SMILES string

CS(C)=O

InChI

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

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

General description

Dimethyl sulfoxide (DMSO) is a polar solvent. DMSO activated by electrophile (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


  • Ternary Phase-Field Simulation of Poly(vinylidene fluoride) Microporous Membrane Structures: Dimethyl sulfoxide (DMSO) is utilized in the formation of microporous membrane structures through phase separation techniques, enhancing polymer research for filtration and barrier applications (Zhang Z, et al., 2024).

  • Application of copper (I) selective ligands for PET imaging: DMSO is employed in the synthesis of copper (I) selective ligands for positron emission tomography (PET) imaging, illustrating its role in advancing diagnostic techniques in medical research (Tada T, et al., 2024).

  • Pillared graphene oxide frameworks for adsorption and separation: Research highlights the use of DMSO in exploring solvent interactions within graphene oxide frameworks, aiming to improve industrial processes for solvent recovery and environmental cleanup (Skarmoutsos I, et al., 2024).

  • A Luminescent Hybrid Bimetallic Halide Family with Solvent-Coordinated Rare Earth and Alkaline Earth Metals: This study utilizes DMSO in the development of new luminescent materials, showcasing its importance in the creation of advanced materials for lighting and display technologies (Lin J, et al., 2024).

Other Notes

Use as reagent in synthesis
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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Birgit Dreier et al.
Methods in molecular biology (Clifton, N.J.), 805, 261-286 (2011-11-19)
Ribosome display has proven to be a powerful in vitro selection and evolution method for generating high-affinity binders from libraries of folded proteins. It has been successfully applied to single-chain Fv fragments of antibodies and alternative scaffolds, such as Designed