Ethyl methanesulfonate

Ethyl methanesulfonate
Names
	Preferred IUPAC name Ethyl methanesulfonate
	Other names Ethyl mesylate; Ethyl methanesulphonate
Identifiers
CAS Number	62-50-0 ;
3D model (JSmol)	Interactive image;
Abbreviations	EMS
ChEBI	CHEBI:23994 ;
ChEMBL	ChEMBL338686 ;
ChemSpider	5887 ;
ECHA InfoCard	100.000.488
EC Number	200-536-7;
KEGG	C19239 ;
PubChem CID	6113;
UNII	9H154DI0UP ;
CompTox Dashboard (EPA)	DTXSID6025309 ;
	InChI InChI=1S/C3H8O3S/c1-3-6-7(2,4)5/h3H2,1-2H3 Key: PLUBXMRUUVWRLT-UHFFFAOYSA-N ; InChI=1/C3H8O3S/c1-3-6-7(2,4)5/h3H2,1-2H3 Key: PLUBXMRUUVWRLT-UHFFFAOYAM;
	SMILES O=S(=O)(OCC)C;
Properties
Chemical formula	CH3SO3C2H5
Molar mass	124.16 g/mol
Appearance	Clear colorless liquid
Density	1.1452 g/cm3 (22 °C)
Melting point	< 25 °C
Boiling point	85–86 °C (185–187 °F; 358–359 K) /10 mmHg(lit)
Vapor pressure	0.044 kPa @ 25˚C
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H340, H351
Precautionary statements	P203, P264, P270, P280, P301+P317, P318, P330, P405, P501
NFPA 704 (fire diamond)	1 1 0
	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

Ethyl methanesulfonate (EMS) is an organosulfur compound with the formula CH₃SO₃C₂H₅. It is the ethyl ester of methanesulfonic acid. A colorless liquid, it is classified as an alkylating agent. EMS is the most commonly used chemical mutagen in experimental genetics. Mutations induced by EMS exposure can then be studied in genetic screens or other assays.

Names


Preferred IUPAC name Ethyl methanesulfonate
Other names Ethyl mesylate Ethyl methanesulphonate
Identifiers
CAS Number	62-50-0^Y
3D model (JSmol)	Interactive image
Abbreviations	EMS
ChEBI	CHEBI:23994^Y
ChEMBL	ChEMBL338686^Y
ChemSpider	5887^Y
ECHA InfoCard	100.000.488
EC Number	200-536-7
KEGG	C19239^Y
PubChem CID	6113
UNII	9H154DI0UP^Y
CompTox Dashboard (EPA)	DTXSID6025309
InChI InChI=1S/C3H8O3S/c1-3-6-7(2,4)5/h3H2,1-2H3^Y Key: PLUBXMRUUVWRLT-UHFFFAOYSA-N^Y InChI=1/C3H8O3S/c1-3-6-7(2,4)5/h3H2,1-2H3 Key: PLUBXMRUUVWRLT-UHFFFAOYAM
SMILES O=S(=O)(OCC)C
Properties
Chemical formula	CH₃SO₃C₂H₅
Molar mass	124.16 g/mol
Appearance	Clear colorless liquid
Density	1.1452 g/cm³ (22 °C)
Melting point	< 25 °C
Boiling point	85–86 °C (185–187 °F; 358–359 K) /10 mmHg(lit)
Vapor pressure	0.044 kPa @ 25˚C
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H340, H351
Precautionary statements	P203, P264, P270, P280, P301+P317, P318, P330, P405, P501
NFPA 704 (fire diamond)	1 1 0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references