You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(2R,3S,4R,5R,6R)-3,4-diacetyloxy-6-(2-azidoethoxy)-5-[(2,2,2-trifluoroacetyl)amino]oxan-2-yl]methyl acetate by IUPAC nomenclature, provide its molecular formula.
user
C16H21F3N4O9
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