You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[5-[[4-(2-hydroxyethyl)piperazin-1-yl]methyl]-2-[(E)-2-(1H-indazol-3-yl)ethenyl]phenyl]-4-nitroisoindole-1,3-dione into its molecular formula.
user
C30H28N6O5
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