Re: IUPAC Nomenclature: SUCRALOSE
The deoxy is because the OHs that would be there in the sugar (galactose or fructose) aren't because they have been replaced by Cl. Deoxy: De - minus Oxy - Oxygen.
And yeah, the galactose ring is missing carbon 6 in the wikipedia structure, although the molecular model version appears correct at first glance.
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