Merck
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41640

Sigma-Aldrich

Dimethyl sulfoxide

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

Synonym(s):
DMSO
Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
Beilstein:
506008
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.21

grau

ACS reagent
puriss. p.a.

Nível de qualidade

300

densidade de vapor

2.7 (vs air)

pressão de vapor

0.42 mmHg ( 20 °C)

teor

≥99.9% (GC)

forma

liquid

temperatura de autoignição

573 °F

Lim. expl.

42 %, 63 °F

Impurezas

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

resíduo de evaporação

≤0.005%

índice de refração

n20/D 1.479 (lit.)
n20/D 1.479

pb

189 °C (lit.)

pf

16-19 °C (lit.)
18-20 °C

densidade

1.10 g/mL (lit.)

traços de cátion

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

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Descrição geral

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.

Atenção

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

Outras notas

For information on dimethyl sulfoxide miscibility, please visit the following link:
Dimethyl Sulfoxide Miscibility/Immiscibility Table
Use as reagent in synthesis

Código de classe de armazenamento

10 - Combustible liquids

WGK

WGK 1

Ponto de fulgor (ºF)

188.6 °F - closed cup

Ponto de fulgor (ºC)

87 °C - closed cup

Certificate of Analysis

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Certificate of Origin

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