A chemical radical or group derived from an amidoxime, containing an unpaired electron and used in free radical chemistry.
From amidoxy (amide + oxime group) + -yl (suffix for radicals or chemical groups). Developed in the 20th century as chemists studied reactive free radical intermediates in chemical reactions.
Free radicals get bad press in health discussions, but chemists deliberately create amidoxyl radicals in labs because their unpaired electrons make them perfect for driving specific chemical transformations that couldn't happen any other way.
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