You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R,2R)-1-(4-nitrophenyl)-2-(thieno[2,3-d]pyrimidin-4-ylamino)propane-1,3-diol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H14N4O4S
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