methylsulfonylmethane

Dimethyl sulfone
	Methylsulfonylmethane
	Dimethylsulfone
Names
	Preferred IUPAC name (Methanesulfonyl)methane
	Other names Methyl sulfone; Methylsulfonylmethane; Sulfonylbismethane; DMSO2;
Identifiers
CAS Number	67-71-0 ;
3D model (JSmol)	Interactive image;
Abbreviations	MSM
Beilstein Reference	1737717
ChEBI	CHEBI:9349 ;
ChEMBL	ChEMBL25028 ;
ChemSpider	5978 ;
EC Number	200-665-9;
Gmelin Reference	130437
KEGG	C11142 ;
PubChem CID	6213;
RTECS number	PB2785000;
UNII	9H4PO4Z4FT ;
	InChI InChI=1S/C2H6O2S/c1-5(2,3)4/h1-2H3 Key: HHVIBTZHLRERCL-UHFFFAOYSA-N ; InChI=1/C2H6O2S/c1-5(2,3)4/h1-2H3 Key: HHVIBTZHLRERCL-UHFFFAOYAG;
	SMILES [O-][S++]([O-])(C)C;
Properties
Chemical formula	(CH3)2SO2
Molar mass	94.128 g·mol−1
Appearance	White crystalline solid
Density	1.45 g/cm3
Melting point	109 °C (228 °F; 382 K)
Boiling point	248 °C (478 °F; 521 K)
Acidity (pKa)	31
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H319
Precautionary statements	P264, P280, P305+P351+P338, P337+P313
NFPA 704 (fire diamond)	1 1 0
Flash point	143 °C (289 °F; 416 K)
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	5g/kg (oral, rat)
Safety data sheet (SDS)	External MSDS
Related compounds
Related compounds	DMSO; Dimethyl sulfide; Dimethyl sulfate; Sulfolane;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references