Methylselenocysteine

Methylselenocysteine
Names
	Systematic IUPAC name 3-(Methylselanyl)-L-alanine
	Other names Se-methylseleno-L-cysteine; L-Methylselenocysteine; Se-Methylselenocysteine
Identifiers
CAS Number	26046-90-2 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:27812;
ChemSpider	129633;
ECHA InfoCard	100.209.682
KEGG	C05689;
PubChem CID	147004;
UNII	TWK220499Z ;
CompTox Dashboard (EPA)	DTXSID801020160 ;
	InChI InChI=1S/C4H9NO2Se/c1-8-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7)/t3-/m0/s1 Key: XDSSPSLGNGIIHP-VKHMYHEASA-N; InChI=1/C4H9NO2Se/c1-8-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7)/t3-/m0/s1 Key: XDSSPSLGNGIIHP-VKHMYHEABS;
	SMILES C[Se]C[C@@H](C(=O)O)N;
Properties
Chemical formula	C4H9NO2Se
Molar mass	182.092 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Methylselenocysteine (Me-Sec), also known as Se-methylselenocysteine (SeMSC), is an analog of S-methylcysteine in which the sulfur atom is replaced with a selenium atom.