You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(Z)-but-2-enedioic acid;9-fluoro-2-[4-[2-hydroxy-3-(propan-2-ylamino)propoxy]phenyl]-4,4a,5,6-tetrahydrobenzo[h]cinnolin-3-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H32FN3O7
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