Methenium

Methenium
Names
	Preferred IUPAC name Methylium
	Other names Methyl cation; Carbanylium
Identifiers
CAS Number	14531-53-4 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	1839325
ChEBI	CHEBI:29437;
ChemSpider	559136;
Gmelin Reference	48893
PubChem CID	644094;
UNII	IM9JMM7N0Y ;
CompTox Dashboard (EPA)	DTXSID301319120;
	InChI InChI=1S/CH3/h1H3/q+1 Key: JUHDUIDUEUEQND-UHFFFAOYSA-N;
	SMILES [CH3+];
Properties
Chemical formula	CH3+
Molar mass	15.034 g·mol−1
Related compounds
Related isoelectronic	borane
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

In organic chemistry, methenium (also called methylium, carbenium, methyl cation, or protonated methylene) is a cation with the formula CH⁺
₃. It can be viewed as a methylene radical (:CH
₂) with an added proton (H⁺
), or as a methyl radical (•CH
₃) with one electron removed. It is a carbocation and an enium ion, making it the simplest of the carbenium ions.