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67-71-0

Basic Information
CAS No.: 67-71-0
Name: Dimethyl sulfone
Article Data: 217
Molecular Structure:
Molecular Structure of 67-71-0 (Dimethyl sulfone)
Formula: C2H6O2S
Molecular Weight: 94.1344
Synonyms: Methane,sulfonylbis- (9CI);Methyl sulfone (6CI,8CI);Dimethyl sulfone;Dimethylsulphone;Lignisul MSM;MSM;Methylsulfonylmethane;NSC 63345;Opti MSM;Opti-dimethyl sulfone;Dimethyl sulfone (MSM);
EINECS: 200-665-9
Density: 1.139 g/cm3
Melting Point: 107-109 °C(lit.)
Boiling Point: 240.9 °C at 760 mmHg
Flash Point: 132.7 °C
Solubility: 150 g/L (20 °C) in water
Appearance: colourless crystals
Safety: 22-24/25
PSA: 42.52000
LogP: 0.74160
Synthetic route
75-18-3

dimethylsulfide

67-71-0

dimethylsulfone

Conditions
ConditionsYield
With sodium periodate; ruthenium-carbon composite In water at 20℃; for 2h;100%
With C4H9N2O9W In methanol; water at 20℃; for 1.16h; chemoselective reaction;99%
With anthracene; oxygen; acetic acid In isopropyl alcohol at 75℃; for 2h; Temperature; Irradiation;99%
67-68-5

dimethyl sulfoxide

67-71-0

dimethylsulfone

Conditions
ConditionsYield
With sodium molybdate dihydrate; dihydrogen peroxide In methanol; water at 25℃; for 0.5h; Kinetics; Concentration;100%
With iron(II) perchlorate monohydrate; ozone; acetonitrile100%
With dihydrogen peroxide; [(η5-C5Me5)Mo(CO)3Cl] In acetonitrile at 35℃; for 2h;99%
98-88-4

benzoyl chloride

C8H10CuO2S(1-)*Br(1-)*Mg(2+)

A

119-61-9

benzophenone

B

67-71-0

dimethylsulfone

Conditions
ConditionsYield
With ammonium chloride In tetrahydrofuran at -78℃; for 0.25h;A 97%
B n/a
930-68-7

cyclohexenone

lithium (methylsulfonyl)methyl(tert-butyl)cuprate

A

67-71-0

dimethylsulfone

B

936-99-2

3-tert-butylcyclohexanone

Conditions
ConditionsYield
With ammonium chloride In tetrahydrofuran at 0℃;A n/a
B 96%
106466-53-9

3-(4-chlorophenyl)-4-dimethylsulfiliminofurazan

A

67-71-0

dimethylsulfone

B

106446-22-4

3-(4-chlorophenyl)-4-nitrofurazan

Conditions
ConditionsYield
With trifluoroacetyl peroxide In dichloromethane Heating;A n/a
B 96%
930-68-7

cyclohexenone

CH3SO2CH2CuCH3(1-)*Li(1+)=(CH3SO2CH2CuCH3)Li

A

67-71-0

dimethylsulfone

B

591-24-2, 625-96-7

3-Methylcyclohexanone

Conditions
ConditionsYield
With ammonium chloride In tetrahydrofuran at 0℃;A n/a
B 95%
106466-53-9

3-(4-chlorophenyl)-4-dimethylsulfiliminofurazan

A

67-71-0

dimethylsulfone

B

106446-22-4

3-(4-chlorophenyl)-4-nitrofurazan

C

3-(4-chlorophenyl)-4-dimethylsulfoximinofurazan

D

106446-23-5

azoxy(4-chlorophenylfurazan)

Conditions
ConditionsYield
With 4 A molecular sieve; 3,3-dimethyldioxirane In acetone for 16h; Ambient temperature;A n/a
B n/a
C 87%
D n/a

C95H88N4O4Pd

67-68-5

dimethyl sulfoxide

A

67-71-0

dimethylsulfone

C95H88N4O3Pd

Conditions
ConditionsYield
In benzene at 20℃; for 6h;A n/a
B 82%
286-28-2

cyclohexene sulfide

A

21386-28-7

Tetramethyleethylenepisulfoxid

B

67-71-0

dimethylsulfone

Conditions
ConditionsYield
With oxygen; dimethyl sulfoxide at -40℃; Irradiation; methylene blue sensitizer;A 79%
B n/a
75-18-3

dimethylsulfide

A

67-71-0

dimethylsulfone

B

22230-82-6

((methyl-d3)sulfonyl)methane-d3

C

67-68-5

dimethyl sulfoxide

Conditions
ConditionsYield
With <18O,2H6>DMSO; oxygen; methylene blue In [D3]acetonitrile for 0.166667h; Mechanism; Product distribution; Irradiation;A 7.4%
B n/a
C 77.5%
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Chemistry

Product Name: Methyl sulfone (CAS NO.67-71-0)

IUPAC Name: methylsulfonylmethane
Molecular Formula: C2H6O2S
Molecular Weight: 94.132840 g/mol
Appearance: white crystalline flakes, great Stink
Density:1,16 g/cm3
Melting Point: 108-110 °C
Boiling Point: 238 °C
Flash Point: 143 °C
Solubility: water, ethanol, benzene, methanol and acetone, slightly soluble in ether and chloroform
Water Solubility: 150 g/L (20 °C)
Merck: 14,3258
BRN: 1737717
Index of Refraction: 1.402 
Molar Refractivity: 20.11 cm3 
Molar Volume: 82.5 cm3
Categories: Pharmaceutical Intermediates; Miscellaneous; Nutritional Supplements; Food & Flavor Additives

Uses

 Methyl sulfone (CAS NO.67-71-0) is used as a high temp solvent for many inorganic and organic substances. It is also used as gas chromatography stationary phase and analytical reagent.

Safety Profile

Safety Information of Methyl sulfone (CAS NO.67-71-0):
Safety Statements:22-24/25
22:Do not breathe dust 
24/25:Avoid contact with skin and eyes  
WGK Germany:1
RTECS:PB2785000
HS Code:29309070

Specification

 Methyl sulfone , its CAS NO. is 67-71-0, the synonyms are Dimethyl sulfone ; Dimethyl sulphone ; MSM ; Methyl sulfone ; Methylsulfonylmethane ; Sulfonylbismethane ; Dimethyl sulphone ; Methane, 1,1'-sulfonylbis- ; Methane, sulfonylbis- ; Methyl sulfone ; Methane, sulfonylbis- ; Methylsulfonyl methane ; Sulfonylbismethane .