Dimethyl sulfoxide

August 12th, 2008 by

Dimethyl sulfoxide

IUPAC name
Dimethyl sulfoxide
Other names
Methyl sulfoxide
methylsulfinylmethane
DMSO
Identifiers
CAS number
RTECS number
PV6210000
SMILES
 
CS(C)=O
Properties
Molecular formula
C2H6OS
Molar mass
78.13 g/mol
Appearance
Clear, colorless liquid
Density
1.1004 g/cm3, liquid
Melting point
18.5 °C (292 K)
Boiling point
189 °C (462 K)
Solubility in water
Miscible
Acidity (pKa)
35
Refractive index (nD)
1.479
εr = 48
Viscosity
1.996 cP at 20 °C
Structure
Dipole moment
3.96 D
Hazards
MSDS
External MSDS
MSDS
DMSO Material Safety Data Sheet
Main hazards
Irritant (Xi), Flammable (F)
NFPA 704

2
1
0
 
R-phrases
R36/37/38
S-phrases
S26, S37/39
Flash point
89 °C
Related compounds
Related sulfoxides
diethyl sulfoxide
Related compounds
sodium methylsulfinylmethylide,
dimethyl sulfide,
dimethyl [...]

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