You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-[3-[4-[[formyl-[(2-methylpropan-2-yl)oxy]amino]methyl]phenyl]propyl-methylamino]ethyl]-1-methylindole-5-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H38N4O3
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