A functional group or radical consisting of an acetyl group bonded to an oxygen atom, with formula CH₃CO-O-.
From 'aceto-' (acetyl, CH₃CO-) + '-xyl' (variant suffix indicating a chemical group or radical). The prefix derives from Latin 'acetum' while the radical nomenclature reflects modern systematic chemistry.
The acetoxyl group is like a chemical attachment point—when you see it in a molecule's name, you know there's an acetyl group hanging off an oxygen atom, ready to interact with other chemicals in predictable ways.
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