Dimethyl selenide is a metal-organic chemical substance from the group of organoselene compounds and the simplest representative of the selenoethers.
Systematic name
(Methylselanyl)methane
Other names, synonyms
Dimethylselenium; Methyl selenide; Methyl selenium; Selenobismethane; Methylselanylmethane
Molecular formula and structural formula of Dimethyl selenide:
C2H6Se or Se(CH3)2
Mr = 109.041 g/mol
(Methylselanyl)methane
SMILES: C[Se]C
Pure dimethyl selenide is a clear, colorless, foul-smelling liquid. The carbon-selenium bond length is 1.943 Å and the C–Se–C bond angle is 96.2°.
Calculated NMR spectrum (Predict Spectra via NMRDB)
1H NMR Spektrum, 13C NMR Spektrum.
Mass-related elemental composition and isotope proportions of the compound Dimethyl selenide - C2H6Se - calculated based on molecular mass.
*) The third column lists the atomic masses or isotope masses of the elements involved and - in square brackets - the natural isotope composition.
The molar mass is M = 109.041 grams per mole.
The amount of substance in one kilogram of the substance is n = 9.171 mol.
The amount of substance in one gram of the substance is n = 0.009 mol.
Monoisotopic mass: 109.9634721932 Da - related to 12C21H680Se.
(General information without guarantee of accuracy and completeness! The information does not replace the chemical safety data sheet or a risk assessment, but rather provides a general overview of the risk posed by the hazardous substance.
Signal word: Danger
GHS hazard statements (H phrases):
LD50 (rat, oral): 2100 mg/kg.
Labeling in the EU: See ECHA Substance Infocard 100.008.918.
The table below lists producers and suppliers of Dimethyl selenide as a commercial chemical for laboratories, research, industry and production with the corresponding contact details.
[0] - Specialist and research articles in scientific journals via PubMed: Dimethyl_selenide.
Last update: 2026-01-22
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