Selenium(−II) compounds

Selenomethionine (SeMet) is a naturally occurring amino acid. The L-selenomethionine enantiomer is the main form of selenium found in Brazil nuts, cereal grains, soybeans, and grassland legumes, while Se-methylselenocysteine, or its γ-glutamyl derivative, is the major form of selenium found in Astragalus, Allium, and Brassica species. In vivo, selenomethionine is randomly incorporated instead of methionine. Selenomethionine is readily oxidized.

A selenide is a chemical compound containing a selenium with oxidation number of −2. Similar to sulfide, selenides occur both as inorganic compounds and as organic derivatives, which are called organoselenium compound.

Selenourea is the organoselenium compound with the chemical formula . It is a white solid. This compound features a rare example of a stable, unhindered carbon-selenium double bond. The compound is used in the synthesis of selenium heterocycles. Selenourea is a selenium analog of urea . Few studies have been done on the compound due to the instability and toxicity of selenium compounds. Selenourea is toxic if inhaled or consumed.

chemical compound

thumb|100px|right|General chemical structure of a selone In chemistry, a selone (also known as a selenoketone) is the structural analog of a ketone where selenium replaces oxygen. Their primary application is for chemical analysis.

chemical compound

SeHCAT (23-seleno-25-homotaurocholic acid, selenium homocholic acid taurine, or tauroselcholic acid) is a drug used in a clinical test to diagnose bile acid malabsorption.

chemical compound

Selenophene is an organic compound with the chemical formula . It is an unsaturated compound containing a five-member ring with four carbon atoms and one selenium atom. It is a selenium analog of furan and thiophene . A colorless liquid, it is one of the more common selenium heterocycles.

2C-Se, also known as 4-methylseleno-2,5-dimethoxyphenethylamine, is a psychedelic drug of the phenethylamine and 2C families. It was originally named by Alexander Shulgin as described in his 1991 book PiHKAL (Phenethylamines I Have Known and Loved). Shulgin listed its dose as perhaps 100mg orally and its duration as 6 to 8hours. Its onset was 45minutes, peak effects occurred after 1.5hours, and doses of 50 to 70mg orally produced threshold effects. Shulgin considered 2C-Se to be around three times the potency of mescaline, but was too concerned about toxicity to test it extensively, though he

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.