Methyl methanesulfonate

Methyl methanesulfonate
Names
	Preferred IUPAC name Methyl methanesulfonate
	Other names Methanesulfonic acid methyl ester; Methyl mesylate; MMS;
Identifiers
CAS Number	66-27-3 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:25255 ;
ChemSpider	4013 ;
ECHA InfoCard	100.000.568
EC Number	200-625-0;
KEGG	C19181 ;
MeSH	D008741
PubChem CID	4156;
UNII	AT5C31J09G ;
CompTox Dashboard (EPA)	DTXSID7020845 ;
	InChI InChI=1S/C2H6O3S/c1-5-6(2,3)4/h1-2H3 Key: MBABOKRGFJTBAE-UHFFFAOYSA-N ; InChI=1/C2H6O3S/c1-5-6(2,3)4/h1-2H3 Key: MBABOKRGFJTBAE-UHFFFAOYAK;
	SMILES COS(=O)(=O)C;
Properties
Chemical formula	CH3SO2OCH3
Molar mass	110.13 g·mol−1
Density	1.3 g/mL at 25 °C
Boiling point	202 to 203 °C (396 to 397 °F; 475 to 476 K)
Related compounds
Related compounds	Ethyl methanesulfonate; Dimethyl sulfone; Dimethyl sulfate; S-Methyl methanethiosulfonate;
	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

Methyl methanesulfonate (MMS), also known as methyl mesylate, is an alkylating agent and a carcinogen. It is also a suspected reproductive toxicant, and may also be a skin/sense organ toxicant. It is used in cancer treatment. Its chemical formula is C H₃−S O₂−O−CH₃.