Selenium. Selenium-80 . Selenium 80 . An element with the atomic symbol Se, atomic number 34, and atomic weight 78.97. It is an essential micronutrient for mammals and other animals but is toxic in large amounts. Selenium protects intracellular structures against oxidative damage. It is an essential component of GLUTATHIONE PEROXIDASE. . 0.71
Organoselenium Compounds. Compounds, Organoselenium . Organic compounds which contain selenium as an integral part of the molecule. . 0.68
Sulfonium Compounds. Compounds, Sulfine . Compounds, Sulfonium . Sulfine Compounds . Sulfur compounds in which the sulfur atom is attached to three organic radicals and an electronegative element or radical. . 0.60
Selenium-Binding Proteins. Se-Binding Proteins . Se Binding Proteins . Selenium Binding Proteins . A group of proteins that covalently attach to selenium or SELENIUM-containing compounds. . 0.59
Onium Compounds. Compounds, Onium . Ions with the suffix -onium, indicating cations with coordination number 4 of the type RxA+ which are analogous to QUATERNARY AMMONIUM COMPOUNDS (H4N+). Ions include phosphonium R4P+, oxonium R3O+, sulfonium R3S+, chloronium R2Cl+ . 0.57