You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-N,3-N,5-N-tris[4-(3-butoxy-6,7,10,11-tetrahexoxytriphenylen-2-yl)oxybutyl]benzene-1,3,5-tricarboximidic acid into molecular formula.
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C159H231N3O21
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