You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R,4R,5R)-5-(4-amino-5-iodopyrrolo[2,3-d]pyrimidin-7-yl)-4-fluoro-2-(hydroxymethyl)oxolan-3-ol is the IUPAC name of a molecule. Please give its molecular formula.
user
C11H12FIN4O3
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